While the militaries of many European countries were caught up in the turmoil of WW2 with inadequate preparation in the areas of Signals and Communications, the Suomen Maavoimat was one of the few countries that was both prepared, adequately equipped, and had incorporated the use of an extensive modern military communications network into its military doctrine. That this was the exception rather than the rule in 1939 is perhaps startling now, but was less so at the time in question. The mere possession of radios by the military does not guarantee their effective use, as the French example in 1940 in particular demonstrates. And as will see, the Suomen Maavoimat’s modern military communications network did not just happen. It took a great deal of work, effort and experimentation and a mindset that encouraged this, and institutionalized the evolution of doctrine and tactics on an ongoing basis without any blinkers – and in this, the Maavoimat was similar in some ways to the Reich’s Heer, the German Army, from which it’s early strategy, doctrine and training had indeed evolved.
Over the previous decade, the Maavoimat in particular, but also the Merivoimat and Ilmavoimat, had invested heavily in both the development and purchase of communications equipment and the setting up and field testing of both Radio and Field Telephone networks and their use in battle. The fact that official documents had not been updated to reflect this (these official prewar documents mention signaling flags, birds and dogs as suitable battlefield communication methods) led to Soviet Intelligence evaluating Finnish Signals capabilities completely incorrectly – yet another factor in the crushing defeat of the Soviet forces in the Winter War of 1939-1940.
Between 1931 and 1939, Finland had experienced a rapid growth in military strength, partly due to the increased financial budgets available to the Defence Forces, partly due to the rapid evolution of Finnish military doctrine and tactics and partly due to the commitment of the Finnish people to contribute their time and support to the Reserve units, in particular via the Suojeluskuntas and Lotta Svard organizations. One aspect of this growth was the ongoing commitment to the development of Finnish military-industrial capabilities – and one aspect of this was the development of Finnish communications technology capabilities. Again, this capability did not just emerge from nowhere. Finland already had, before WW2, one of the most advanced public telecommunication networks in the world. Perhaps due to the inherited characteristics of the individual citizens, in 1939 some 160,000 phones were in use for roughly 4 million people in 1939. The network was fairly dense, and many towns had automated exchanges, which is noteworthy, as Finland covers more than 300,000 square kilometers, and the vertical distances exceed 1,000 km. The Finnish broadcasting company had been operating for over a decade and a large number of radio amateurs were active.
Additionally, by the early 1930’s, there were half a dozen well-established telecommunications manufacturing companies in existence in Finland – among them Helvar, ASA, Salora, and Fenno Radio (a Philips’ subsidiary in Finland). Nokia would be a “late entry” in this field in the 1930’s but would rapidly catch up with its established competitors and become the second largest telecommunications company in Scandanavia (after Erikson) by 1939. Between them, these Finnish companies would make a substantial contribution to Finland’s military strength and military capabilities in the Winter War (and through the duration of WW2 for that matter). From post-war documents and the histories of Finnish companies in the telecommunications sector, a thread of connecting links can be found between key persons and organizations, which were once designing military electronics, but later adopted their know-how to the needs of public communications.
The Finnish military’s ongoing commitment to technical research and development through the decade of the 1930’s had kick-started expertise in specialized fields in a wide range of industries, not the least being the Finnish telecommunications industry. A long and close relationship existed between the Radio Workshop of the Armed Forces and the State Electrical Workshop (which was responsible for many Ilmavoimat radios) and the half dozen Finnish companies working in this sector. This led directly to a growth in the number of qualified communications engineers and technicians with practical skills (the growth in strength of the Signals Branch of the Maavoimat through the 1930’s in particular resulted in large numbers of Conscripts, Reservists and later, Lotta Svard members – who would in the Winter War make up the majority of rear-area Signals personnel, receiving technical training) and also, under the pressure of war-time circumstances, to radical development and innovation – which in turn led to the emergence of the present Nokia Telecommunications as an internationally known company, the well-known supplier of both microwave equipment, cellular radio systems and - not too astonishingly - modern military communications infrastructure. But in the mid to late 1930’s, this was all in the future.
Radio in Finland in the 1920’s
Funnily enough, Finland was one of the pioneering countries in the field of radio, with Russian scientist Alexander Popov carrying out broadcasting experiments with his equipment near the archipelago of Kotka in Finland, when it was a part of the Russian Empire, in 1900. Early in the 20th century, the development of radio technology saw the first radio broadcasts, with the first radio receivers (and radio broadcasting) becoming popular in the 1920s. In January 1922, the first Radio broadcast in Finland took place with the broadcasting of a public concert from Turku, a broadcast that was repeated in January 1923. Regular broadcasting began by the BBC and in the early 1920’s Radio Broadcasting came to Finland, as it did to other countries in the same period with the Finnish broadcasting corporation beginning transmissions in Finland after 1925. Taking advantage of this new technology, several small radio workshops of one or two workers sprang up in Salo at the same time.
Radio receivers in these early years were characterized by a separate speaker and adjustable wire antennae. Finland saw radios imported initially, but very quickly a number of Finnish companies began to manufacture Radio Receivers for sale to the public. Among these were a number of small local radio-manufacturing businesses such as Teknokemiallinen tehdas Vanamo, E & J Leino Oy, Järvinen & Valli, Salon Tukkukauppa, Polkupyöräliike Onni Hakala, Reilin and Kaarlo Paijola. And then there were also the companies previously listed that were destined to become larger - Helvar, ASA, Salora and Fenno Radio (a Philips’ subsidiary in Finland) and of course the late starter that was destined to become the biggest of all - Nokia. Some examples of the types of radio receivers these companies produced for sale to the public during the 1920’s are shown below, following which we will take a brief look at radio broadcasting in Finland and then at each of the larger radio manufacturing companies in turn before moving on to Military Radio and Telephone equipment and the Maavoimat’s Signals Branch history and structure.
20-luvulla valmistettu englantilainen vastaanotin / A 1920’s Radio Receiver imported from the UK (Photo from Kouvolan Putkiradiomuseosäätiö)
The very first radios manufactured in Finland were crystal receivers, such as this Nordell & Koskinen crystal receiver, manufactured in 1928. These were rapidly superceded by more advanced models.
1937 KVU Radio Receiver – Fenno Radio
1937 KVU Radio Receiver manufacturers plate – Fenno Radio
1937 KVU Radio Receiver – Fenno Radio – the inside view….
Page from 1928: note the aircraft radio being carried by two men.
In addition to radio importers and manufacturers, as with any new technology there were numerous “hobbyists” who were fascinated by the technology and who built their own radios using plans and descriptions from science magazines. Many of these would later find a niche where they could apply their hobby within the the military and in particular in the Suojeluskuntas. An example of what these amateurs could achieve was the establishment of Turku Radio (Radio Turun in Finnish): The factory was founded in 1926 in Turku and was in businessfrom 1920 to 1930. Turku Radio in the 1920’s was one of the most famous radio factories in Finland. It was highly publicized in newspapers and to a lesser extent in magazines, especially those aimed at radio amateurs and hobbyists. Turku Radio was owned by Niilo Hyrsky until 1927, in which year he was joined by an engineer, Leo Lindell. The engineer Lindell resigned from the company at the end of 1927 but continued to work with Turku Radio until the company went bankrupt in 1930. This company also produced flashlights, batteries and phones
Turun radion vastaanotin T.R. 3 suunnittelijana on toiminut Leo Lindell. Radio on tekniikaltaan tyypillinen 1920-luvun lopun radio. T.R. 3 on varustettu kolmella putkella. Ensimmäisenä antennista lähtien on takaisinkytketty hilailmaisija. Kaksi muuta putkea toimivat muuntajakytkettynä äänitaajuusvahvistimena. 1Turun radio receiver T.R. 3 was the work of designer Leo Lindell. Radio technology is typical of the 1920s, at the end of the radio, the T.R. 3 is equipped with three-tubse. The first antenna is connected to the back tube and the other two tubes are connected to the transformer
As the new radio technology evolved, so to did radio broadcasting as a new medium of communications. Regular American radio broadcasts reached Finnish listeners in 1923. In 1922 in Tampere, a radio amateur, Arvi Hauvonen (1899-1973) began broadcasting with his station, Radio Tampereen, using a transmission power of 10-150 watts in the medium wave – broadcasts that he kept up from 1923 to 1930 (Arvi Hauvonen later became the director of the long-wave station in Lahti from 1929 to 1967. In his honor, as a pioneer of broadcasting in Finland, OH3R "Arvi Hauvonen Memorial Station" was inaugurated – this is an amateur radio station in the Museum of Radio and Television in Lahti, located in the old historical long-wave station of the Finnish Broadcasting Company on Radiomaki, Lahti's Radio Hill). In Helsinki on 23 March 1924, the Radiola medium wave (MW) station began with a power output of 500 W, but this Radio Station failed after six months.
The Amateur Radio Association in Lahti (Lahden Radioharrastajat ry) began transmissions in 1924. On 29 May 1926, the Finnish Broadcasting Company (Oy Suomen Yleisradio Ab in Finnish, Rundradion in Swedish) was founded in Helsinki, largely modeled on the British Broadcasting Corporation (BBC). Yleisradio’s first major transmitter was situated in Lahti because of the town's central location in Finland and it’s first radio programme was transmitted on 9 September 1926 – with the first transmissions being made from the Suojeluskuntas radio station and then the station "Army Signal Batallion, both located in Helsinki. This is the date generally considered to be the birthday of regular broadcasting activities in Finland. However, it was not until 1928 that YLE's broadcasts became available throughout the country. After this the broadcasting network was rapidly developed and by the beginning of the 1930s, 100,000 households were able to listen to YLE's programmes.
Pioneering Finnish Broadcasting Stations
Tampere - Tampere Radio Society 1923-1930
Helsinki - Army Signal Batallion 1923-1930
Helsinki - Radiola 1924
Helsinki - Finnish Home Guard 1925-1926 (transmitter of 500 W, purchased from the USA in 1923)
Hanko - Hanko Biscuit Factory Radio 1924-1925
Rauma - Rauma Radio Club 1924-1927
Jyväskylä - Radio Society of Central Finland 1925-1927
Pori - Pori Radio Society 1925-1927
Mikkeli - Mikkeli Radio Society 1925-1928
Lahti - Lahti Radio Hobbyists 1925-1927
Viipuri - Viipuri Radio Society 1926-1928
Turku - Radio Society of Turku 1926-1935 (500 W transmitter)
Pietarsaari - Radio Society of Central Bothnia 1926-1935
Kuopio – irregular transmissions over winter 1927-1927
By the beginning of the 1930s, 100,000 households were able to listen to YLE's programmes. Listening to the Radio was a family, or (given the cost of radios) even a community, activity..
A family grouped around their Radio – 1936.
When established in 1926, Yleisradio as a national broadcasting company was not owned by the state but by a consortium of organizations. Neither was it granted a monopoly, even though it was awarded almost all radio-licence revenue (Radio owners had to purchase a License). Most of the shares of Yleisradio were owned by financial institutions and various businesses, over half of the company's stock was owned by the organizations of the cooperative movement, the banks and forestry and agricultural associations, and the largest single shareholder was the Finnish Radio Association. In this respect Finland differed for example from Sweden, where the corresponding programming company had been formed by the press and the radio industry and it also differed from the UK, where the originally private BBC was owned by the manufacturers of radio receivers. The role of the state in the functioning of Finnish Yleisradio was to pass broadcasting legislation permitting the collection of radio-licence fees for this company, to rule on its operating licence and to supervise its activities. The monopoly status of Yleisradio was in practice organized through a protectionist licensing policy applied by the government, not by law.
As far as principles of public service programming were concerned, Yleisradio's programming policy followed the European model. Concepts such as "dignified", "business-like", "proper", "popular education" and the "dissemination of useful education" were underlined. An important requirement was also that the programme should interest a considerable portion of audience. As a special feature, the principles were very much shaped by the agrarian conditions of Finland. A new era began in the relations between the state and Yleisradio in 1934, when Yleisradio was taken over by the state. The background to the take-over was that in the political circles of the day there was felt that there was a need to give the government a firmer grip on the only national mass medium that existed in the country. According to the act of 1934 the state exercised its powers in the shareholders' meeting, whose tasks included the appointment of the Administrative Council, Yleisradio's highest executive body.
The first central radio station in Lahti was inaugurated in 1928 (the station was designed by the German company, Telefunken) and Lahti became well-known as the “broadcasting town,” famous for its towering steel lattice aerial masts and for the radio station. The Lahti transmitter and radio masts were in use by 1928, the transmitter's initial capacity was 25 kW and rose to 40 kW in 1929 and its transmissions were augmented by Radio Societies and Clubs all over Finland retransmitting its programs At the time, Lahti was one of the most powerful radio stations in Europe. A new broadcasting station, with even more powerful transmitters, was designed by the renowned Finnish architect Kaarlo Könönen and completed in 1935. Regular broadcasting started in December 1935 with an increased capacity of 150 kW, which covered from the far south of the country as far as to Jyväskylä in Central Finland. The short wave transmitters Lahti II and Lahti III started broadcasting between 1938 and 1940 and were subsequently in operation until 1949.
It was only in 1928 that radio broadcasts could be received throughout the the entire country and by the early '30s a million Finns were able to listen to programs from YLE. Meanwhile, Yleisradio built a chain of transmitters in major cities: in 1930 in Helsinki with a power of 10 kW, in Viipuri in 1931 with a power of 10 kW, in 1931 in Oulu with a power of 1 kW, in 1933 in Tampere with a power of 1 kW, in 1933 in Pori with a power of 1 kW, in 1934 Sortavala with a power of 0.25 kW. There were lower-powered transmitters in Vaasa, Kuopio and Rovaniemi. By the year 1935 all the equipment of the surviving radio clubs was bought by the now state-owned Yleisradio.
Kaarlo Könönen (1892-1965) graduated as an Architect from the Helsinki University of Technology in 1919. Between 1922-23 he was the Architect for the City of Kotka. He designed a number of classically-influenced apartment buildings in Kotka in the 1920’s. In 1924 he was employed as an Architect for the Department of Defence and between 1925-1929 he worked for a number of private architectural firms, such as Eliel Saarisen’s firm. From 1929-1955 he was the Architect for the City of Lahti, where is architectural style became closer to functionalism. His best-known designs include the Lahti Bus Terminal (1939) and the Lahti City Hall extension.
The old Lahti Radio Station – now a museum (http://www.lahdenmuseot.fi/main.php?id=295)
The growth of radio broadcasting and the rapid rise in the availability of radio receivers had a significant social impact. Right from the start, state control and the public-service ideology had consequences both for the content of the programmes on offer and the linguistic forms that were used. The language used on the radio was not just the public language but was the “official” language. There were strict requirements for grammatical correctness and clear articulation. Yet another reason for the formal quality of the language was that most of the people employed in radio broadcasting in the early days had some kind of academic education, and in their work as public broadcasters, they acted more as public officials than as journalists. Entertainment initially was mostly “high-brow” – concerts, theatre performances and literary recitations. This however changed over time as Radio proved far more effective in mass communication as compared to print media.
Radio increasingly brought unique entertainment opportunities to people, especially for those who could not afford the luxury of visiting places where entertainment was available only to the rich. With a radio set by their side, common people could enjoy music and stayed informed about events as ordinary as a street robbery to change of governments and tug of war among political rivals to availability of commodities in the market. But it was the entertainment which made the radio popular on first instance. Very soon the entertainment content expanded beyond music and comedy shows, gossip and answering letters from listeners – all of which served to expand the audience. Radio brought news to its audience far more rapidly than newspapers had and also began to be used for “political” broadcasting – including “fireside chats” which added an intimacy to political campaigning.
Radio broadcasts were used for educational purposes and also for advertising. The corporate sector almost immediately seized on the usefulness of radio as astrong medium to reach a very high number of consumers of their products and services and started buying “air-time” for this purpose. Within a decade of the first radio broadcast, an advertising sector – far more organized than the world had seen during growth of print media, became highly visible. Since the popularity of the commercial programs was largely dependent on the entertainmentor fact, new approaches to advertising were soon invented – catchy music jingles, script writing and presentation. Radio opened up a whole range of jobs never known before. To become a broadcaster with a radio station was considered to be a prestigious job in the early days of radio. The news-readers, copy writers, playwright for radio dramas, anchors for different discussion shows, musicians, recording engineers and a range of technical jobs came about so quickly that formal training was non-existent to start with.
And at the same time, the growth in Radio’s popularity and the rising audience numbers led to the appearance of a whole new sector of industry – the manufacturing, selling and repairing of Radio equipment. Finland was not unique in this – it was an experience that almost every country in Europe went through in the 1920’s and 1930’s as the new technology increasingly permeated society. In the case of Finland, a number of companies emerged in this sector. The expertise of these companies would be put to good use by the Finnish military through the decade of the 1930’s.
We’ll now go on to look at the most important of these Finnish companies, together with a short overview of the role each would play in the decade prior to the Winter War.
ASA Radio Oy
ASA Radio Oy was established by Arvo Sakrelius on 27 September, 1927 and would go on to become a major Finnish radio-equipment manufacturer. The founder of the company, Arvo Andrea Sakrelius, was born on 23rd December, 1898 to Johan Sakrelius, a small business owner and his wife, Amanda. As a schoolboy, Arvo was interested in chemistry, physics and electrical theory. A relative who lived in Viborg took the 15-year-old boy on as an assistant electrician in 1913. After returning to Turku at the age of 17 he had electrician's papers in his pocket and established himself as an electrician in Turku.
After building a number of radio-broadcast receivers, in 1927 he established a company he named after himself to manufacture radio receivers. Initially, he had one employee. Later that year he changed the name of the company and began working from a two room apartment. In 1930 he formed the company into a limited company and renamed it ASA Radio Oy. By late 1934 the company had 15 employees. In the spring of 1935 Asa Radio Ltd moved into a factory building, and in 1936, as the company expanded, he rented an old tennis club on the same property to allow for the expansion of his factory facilities. The number of employees had by 1936 grown to 120 and as the company expanded through 1937, sales branchs were established in Pori and Rauma, and the following year in Forssa. In 1938, the company manufactured approximately 12,000 radio receivers. The Radios at this time cost about 3,000 marks, which was equivalent to three months of a laborer's gross salary – they were not cheap items to buy by any means, and owning a radio was something of status symbol.
A typical ASA Radio Dealership of the 1930’s…..
An ASA Radio Repair Workshop of the 1930’s
ASA Radio Receiver from the 1930’s: (Valmistusvuosi 1938. 5+1+1- putkinen, 7 -piirinen suursuper heterodyne vaihtovirtavastaanotin. Jännitealue : 110-125-225-240 V. Tehontarve n. 49 W. Aaltoalueet : 18-53 m, 198-587 m, 693-1880 m. Taikasilmä näköviritys. Putket, n.s. punaisen sarjan E- putket : EK 2, EF 5, EF 6, EL 3, EB 4, EM 1, Philips : 506, tai Triotron : G 470. PM : M2-27 / Year of manufacture 1938. 5 +1 +1 tube, 7-circuit high-super-heterodyne receiver to AC power. Voltage Range: 110-125-225-240 V Power consumption about 49 W. bands: 18-53 m, 198-587 m, 693-1880 m, Magic Eye tuning of vision. Tubes, the so-called Red E-series tubes: SS 2, EF 5 EF 6, EL 3, 4 EB, EM 1, Philips 506, or Triotron: G 470 PM: M2-2)
Initially, the radios manufactured by Asa through the mid-1920s were battery-powered radio receivers but by the beginning of the 1930s their multi-tube radios ran off mains power supply. In 1939, Asa Radio announced its first matkaradionsa (portable radio). As with other Finnish radio manufacturers, ASA manufactured radio equipment for the Finnish military, starting in ASA’s case in late 1938 as emergency funding was approved by the Government following the Munich Crisis. In ASA’s case, the size of the military order’s placed resulted in the building of a new factory assembly hall with ASA manufacturing Radios for both the Maavoimat and Ilmavoimat.
Unlike other Radio manufacturers, ASA did not design any new equipment specifically for the military. The focus of the company was on manufacturing, and this they did well, turning out radios from designs supplied by the Radio Workshop of the Armed Forces through 1939. With the outbreak of the Winter War, ASA moved to a wartime manufacturing regime, running two shifts and then three as Finnish industry attempted to meet the ongoing needs of the Suomen Maavoimat, Ilmavoimat and Merivoimat as they fought for Finland’s survival. ASA Radio had a tangible experience of the sorrows of war: the Soviet Air Force night bombing raids of January 1940, just a couple of weeks prior to the completion of a new ASA factory, destroyed the new factory’s assembly building as well as valuable raw materials and machinery. Valuable and difficult to replace measuring instruments and equipment were also destroyed in the subsequent fire.
However, ASA had retained their old facilities and were able to continue manufacturing, albeit with a reduced output. Following the Winter War, ASA Radio continued to manufacture radio and electronic equipment for the armed forces. They also manufactured components for other manufacturers, including vacuum tubes, storage batteries and other electronic equipment including items such as proximity fuses. In 1942, they began to manufacture quartz crystals and became the only Finnish supplier of these crystals, which were used in huge numbers in the next generation of Radios which the Maavoimat would go on to use in the fight against Germany. At the same time, even in the throes of the Winter War, as there was a pressing need for the equipment ASA was manufacturing manufacturing times were shaved wherever possible in a process of what we would now call continuous improvement. As an example, when ASA began to produce wave meters for the Signals Branch, it took two and a half hours to calibrate the instruments by hand – and then they required a 24 hour burn-in period before they were ready for use. ASA developed an automatic calibrator for their wave meters, which reduced the total time to prepare the meters for use to fifteen minutes.
Oy Fenno Radio Ab
The Philips Company was founded in 1891 in the Netherlands by Gerard Philips and his father Frederik as a family business. Frederik Philips, being a banker in Zaltbommel, financed the purchase and setup of a modest, empty factory building in Eindhoven, where Philips started the production of carbon-filament lamps and other electro-technical products in 1892. In 1895, after the first difficult years and going nearly bankrupt, Gerard and his father brought in Gerard’s younger brother Anton. Having earned an engineering degree, he started working as a sales representative, but soon began to contribute many important business ideas. After that, the family business began to expand rapidly, resulting in 1907 in the foundation of the N.V. Philips’ Metaalgloeilampfabriek (the Philips Lightwire-bulb Factory Inc) in Eindhoven, followed in 1912 by the foundation of the N.V. Philips' Gloeilampenfabrieken (the Philips Light-bulb Factory Inc). In 1918, Philips introduced a medical X-ray tube. This marked the beginning of the diversification of the company’s product range and the moment when it began to protect its innovations with patents in areas stretching from X-ray radiation to radio reception. In the 1920s, the company started to manufacture other products, such as vacuum tubes and in 1927 also began manufacturing Radios.
Early Philips Radios
In 1925, Philips became involved in the first experiments in television and, in 1927, began producing radios. By 1932, Philips had sold one million of them and had become the world’s largest radio producer. A year later, it produced its 100-millionth radio valve and started production of medical X-ray equipment in the United States. By 1939, when it launched the first Philips electric shaver, the company employed 45,000 people worldwide and had acquired or established subsidiary companies in many countries. Oy Fenno-Radio Ab of Helsinki was one of these subsidiaries. Originally founded by Alex Paltschik, Erik Linden and Guido Ruotzi in 1924, Philips was a minority shareholder in Fenno-Radio from the start, and as such imported or manufactured a range of Philips (and other manufacturers) products. Fenno-Radio was a major supplier for the military and was involved as well in a number of research projects. There was a security concern about the foreign shareholding and as a result, the really secretive R&D Projects were awarded to Nokia rather than Fenno. However, Fenno was always a major manufactuer and such was the demand that in 1943, the company built a new factory in Helsinki Vallila.
Fenno (Philips) Finland -: 947A-12 [Radio] from 1935
1936: Workers at the Fenno Radio manufacturing plant. Note that the workers are all women. They proved to be more suitable for fine detail, as well as being cheaper to employ.
Fenno Radio advertisement from 1941
In the late 1930’s, the radio was evolving into a fairly sophisticated device and the top radio manufacturers were looking to boost sales, with marketing departments flooding newspapers and magazines with advertisement after advertisement touting various features of their radios. By now, many radio manufacturers were using some form of remote control on their deluxe and high-end models. Three types of remote control were prevalent in the 1938-39 season: wired (a tethered control box), wired radio control (similar to carrier current radio over the AC house wiring) and true wireless radio control, which is the method Philco employed (and which was distributed in Finland by Fenno Radio).
The “Mystery Control” – actually the first wireless remote in general use – in 1938-1939. The first radios Fenno manufaured for the Mystery Control (produced under license from Philco) were two top of the line sets for the 1939 model year. These models were large deluxe floor consoles. Both had hi-fidelity audio circuitry and impressive operational features as well as good looks.
Fenno dealers also held live demonstrations for the new radio line with in-store demo areas. One enterprising dealership in Vaasa had a demonstration in the front window of the store. Traffic was all but stopped. A salesman carried the control box out to the sidewalk and extension loudspeakers were placed on the sidewalk. These "wireless remote" demonstrations were very unique for their time. Many other manufacturers had radios with other forms of remote control (Fenno included) such as a wired or tethered control box or a remote box with a small built-in converter/receiver that fed the main set. No manufacturer up to this time had a completely wireless remote. Initially, the 1939 Fenno dealer catalog claimed the Mystery Control did not use a "radio beam," when it fact it was. The control box sent out RF pulses to a special receiver in the main radio cabinet.
The Fenno Mystery Control --it worked just like a telephone dial. You could activate station presets, change the volume, and turn the set on and off.
With the expertise, such as it was, that Fenno acquired with manufacturing wireless remote controls, the company would go on to work closely with the Ilmavoimat through 1939 in the development of a wireless-controlled glider bomb – something that we will look at in detail a subsequent post on Finnish technical innovations over the period of 1938-1939.
The Ilmavoimat’s Glider-Bomb: This was the world’s first true “fire and forget” bomb – and it was invented in Finland. Once dropped, the Glider Bomb went solo, guidimg itself to the target with an autonomous homing mechanism that was impervious to electronic countermeasures. The gliders were constructed primarily of plywood with a 12ft wingspan and built around a 1,000lb bomb. The guidance system was mounted in the nose. Fenno-Radio spent considerable time and effort working to devise a workable remote control guidance system for this bomb but were unsuccessful.
In actuality, a reliable wireless-controlled glider bomb was not successfully achieved, but the work that went into this project, when fortuitously combined with the research work of a junior psychologist at the University of Helsinki, Johannes Nahkuri, (who had studied at the University of Minnesota in 1937) whose older brother was an engineer on the glider-bomb project, resulted in the first “fire and forget” glider-bomb that could be dropped from well outside the range of enemy AA guns and left to guide itself onto the target. It was a weapon that the Ilmavoimat would use with devastating effectiveness in the Winter War.
….and this is the “fire and forget autonomous homing mechanism….” Pigeons were trained to peck at an image of a target projected by a lens onto a screen in the bomb's nosecone – these signals then corrected the bomb's flight-path. In early testing, it was found that Pigeons produced excellent results & were reliable under stressful conditions including extremes in cold, vibration, acceleration, pressure, & noise.
An Ilmavoimat Divebomber dropping a LintoPaska Liidokki-Pommi in trials in mid-1939. Such was the outstanding success of the trials that the Glider-Bomb (Liidokki-Pommi) was ordered into immediate production. The most challenging task was the mass-training of Pigeons and emsuring their ongoing care and training together with ensuring an adequate reserve was available, particularly in the cold of mid-winter.
The trials, tribulations and success of the LintoPaska Liidokki-Pommi Project will be covered in detail in a subsequent Post.
Helvar Oy Ab
Helvar was founded in 1921, initially to handle oil imports between Helsinki and Warsaw and expanding into the general import / export business. Later in the 1920’s, the Company’s attention turned to the radio industry. At that time, it was a pioneer in the radio industry in Finland. Beginning in 1926, the company imported radios, gramophones and records and in the 1930’s, the company started to manufacture and produce radios itself. With a growing market for radios, Helvar decided to move into manufacturing and in 1932, the company produced its first model, the Super 6/32, which was an immediate success and which immediately pushed Helvar to the forefront of radio manufacturing in Finland. A factory was opened at Pitäjänmäki in Helsinki in 1933 and in 1934 Helvar also became involved in the development of broadcasting technologies for the Radio Broadcasting industry. Also in 1934, the company was awarded the first of what would be a number of contracts from the Maavoimat for the design and manufacture of military radios.
The first commercially available Helvar Radio, the 32-6. Made in the company’s factory at Pitajanmaki, Helsinki.
The Helsinki Radio Factory (Helsingin Radiotehdas) was built for Helvar between 1937 and 1941 with a 1920’s style façade. With three floors, each with an average height of three meters, the factory was well lit, with large windows and an open interior. The factory was an example of the good working conditions that many Finnish workers enjoyed by the time of the late 1930’s. (OTL, the building has been converted to a residential apartment building preserving much of the original building - http://www.ncc.fi/asunnot/paakaupunkiseutu/helsinki/radiotehdas/fi_FI/radiotehdas/)
A photo of the orginal interior of the Helvar Radio Factory
Helvar was an important supplier of Radio Communications equipment to the Finnish military for the duration of the Winter War and the remainder of WW2.
In the next Post, we will look at Nokia Radio and its contributions to the effectiveness of the Finnish military.