1 0 obj Naval radio communication played a vital role in World War II efforts and Hawaiis defensive installation. The station was commissioned on December 21, 1941, and grew to be one of the largest Naval radio stations in the world at that time (Allen, 1950: 226). It operated in the 33.8-38MHz frequency range. I use that although I have read on the ARC5 collector pages these radios will perform with voltages as Replacement for Torn.Fu.g.[3]. I tend to have such a bad opinion of caps made since the mid 90s though, that I figure if I leave something in that seems marginal it still might last 5 years whereas a replacement might last 3. 37 0 obj 49 0 obj The table itself is located in Section 2.106 (this link is for informational . Also known a USW receiver c1. Within seconds stations starting coming in strong, much louder than before. The major difference between German Army tank sets and US Army tank sets was the American use of FM for the high-HF/low-VHF bands. 80 0 obj In the 1920's and 1930's the Russians developed a number of radio-controlled systems. As much as Ive read about Dynamotors, Ive never seen on in action. Other frequencies involved include 7050 kHz LSB and 3731 kHz. It operated in the 1,130 to 3,000kHz frequency range with a transmission power of 80 Watts. FuG 17: Designation for a Torn Fu H transceiver. endobj Radio was the cheapest form of entertainment, and it was the most popular medium during World War II. The men that reached the ridgeline were pondering the possibilities and problems of construction at the site. The problem with these crystals was, that frequencies of the radio nets were planned frequencies for day and night time, just for all the 24 hour. 1. By the winter of 1940 Congress began to understand the full impact of the Pacific turmoil and approved a bill that included $31 million specifically for the Pacific island bases. It is probably more authentic after a good re-capping and re-alignment. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. This unit switches-on every time without fail, whrring away for innumerable demos for friends and family. 32 0 obj << /S /GoTo /D (section.3) >> And that for frequencies according the plans. 8 0 obj The electrolyics, however, were extremely leaky and did not reform. Join the movement, there are many others who restore WW2 and other vintage gear to be original as possible. It was used for by reconnaissance elements for intercommunication. DMG 2 T: Pack unit, operating on the 475 - 525MHz band, single channel voice or 800 character-per-second teletype. I followed the instructions from the original service manual, aligning the IF first (using a modern synthesized signal generator to get it spot-on), then the front-end variable cap assembly that I had just repaired. It was used for by observation teams of the Sturmartillerie to communicate with artillery units. But if you have an old frequency generator also marked in cps, Power 22 V AC 50Hz 300 VA. Rudolf - DMG 3 G: 'Heavy' link. endobj There were different systems for each specialized task: Somewhere in this menagerie of radio systems, you would find a CBY-46104 receiver. Endnotes: Chapter 3. This would be the first time that the Government had ever used this method on a big job (Woodbury, 1946: 52). The Hellcat was superior to the Zero in every way except in a slow turn. The date of manufacture was early-war, February 1942. 29 0 obj (Introduction) L.I.N.Y. << /S /GoTo /D (subsection.5.1) >> Radar beacons to identify the aircraft as a friendly (identify friend or foe, or IFF). To preserve this historic treasure my rules of restoration were: These were not easy rules to follow because, as we know, the first step to antique radio restoration is to replace all of the paper and electrolytic capacitors, saving a lot of headache and time. I tweaked the antenna coupling control, they were louder still. Finally someone restoring something instead of shoving in a raspberry pi. About Me - Opt out - OP can reply !delete to delete - Article of the day. It operated in the 42,000 to 48,300kHz (42-48.3MHz) frequency range with a transmission power of 20 Watts. endobj Chapter 10 discusses the principle of both pulsed and CW radar systems and radar parameters. The one-way voice link (OWVL) described a covert communications system that transmitted messages to an agent's unmodified shortwave radio using the high-frequency shortwave bands between 3 and 30 . This thing was preserved as good as the day it was removed from its F4F Hellcat. I love seeing the WWII equipment properly restored. .15 Watt output AM voice and CW. The CBY-46104 covers 1.5-3 Mc either AM or CW (it can also tune in SSB in CW mode), made by the Aircraft Radio Corporation of Boonton N.J. in February 1942 with SN# 1777. The new receiving station at Wahiawa amply met these requirements but the main Navy transmitter at Lualualei was not powerful enough for an all-ocean war. Anyone have some cool facts to share? << /S /GoTo /D (subsubsection.4.4.2) >> B^), Great job! Sets employing frequency modulation and carrier techniques were developed and used, as were also radio relay sets that used radar pulse transmission and reception techniques and multiplex time-division methods for obtaining many voice channels from one radio carrier. Unit must be made fully operational to original specification. My unconventional restoration of this radio followed strict rules so as to minimize the evidence of repair both inside and out yet make this radio perform again as though it came fresh off the assembly line. Very, very well done! ESR is an abbreviation for Equivalent Series Resistance, not Electrostatic Series Resistance. These long-haul contacts led to 1927-1928 international conferences that resulted in the designation of what essentially are today's 80 . Was present in almost all German tanks and some other vehicles. https://mapsairmuseum.org/what-constitutes-a-radio-on-a-wwii-era-bomber/#:~:text=The%20predominate%20command%20installation%20during,5%20command%20series%20was%20used. At this point I had two toggle switches and a pot with a mess of wire shoved into the rear panel connector pins. DVM testing only reveals the short-circuited caps, this is a necessary first step. He taught me all about the command rx and tx. Sadly, it disappeared in one of my folks moves. Replacement for Torn.Fu.f. Today we use Mega Hertz which are totally incompatible.. just kidding. Clandestine Radios of WWII - EEWeb Community Still others operated radio frequency heaters and sealers being used in an expanding number of industries using technology developed during World War II. WWII WW2 BC 611 HANDIE WALKIE TALKIE US Army Radio Reciever Top plate $79.99 $11.99 shipping Pre-WW2 US Army Military Signal Corps Field Phone Radio Telephone Type EE-3-B $429.99 $42.00 shipping or Best Offer Vintage WWII Army Signal Corps BC-603-D Field Radio Receiver Western Electric $199.99 $53.79 shipping Later, I built some crystal controlled converters and use the BC-453 as a tuneable IF. For high voltage capacitors, the key metric of goodness is leakage. Used at the battalion to company level of the Panzergrenadier. Test those capacitors before throwing them in the garbage and keep those filaments lit! At one time (1976) I had it mounted in my 65 Datsun (named Ziggy), and used to work CW on 40 meters with headphones on and a key strapped to my leg. FuG 4: A medium-wave receiver used in command tanks. Everything from receivers to transmitters that ran on low voltage DC busses used dynamotors to generate the 200-1000V, or more, needed for operation. No replacement of any components whatsoever. It spun up like a 1950s jet engine! Those old radios are fun. He had built a little one tube power supply to replace the dynamotor. Given the changes to the tuning unit I realized that I had to do a full alignment. endobj A 1913 aircraft with a radio, at the time considered cutting-edge equipment, had a maximum range of 2,000 yards. Please note: the Haik Stairs are currently closed and illegal to access. Power battery. (Fug 8 + Fug 4). It was usually used with a two-metre antenna. With such a receiver the young ham would be able to tune in radio traffic from all over the world and practice listening to Morse code (CW) transmissions. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Depending on the set a range of communication facilities were available consisting of voice and/or teletype and Hellscriber. No, X86 Single-Board Computer! I put them back into place and the tuning unit was good as new. . Learn more, WWII Aircraft Radio Roars To Life: What It Takes To Restore A Piece Of History, radio systems installed into WW2 aircraft, Mr Carlsons Lab has a great video on how to use one, Custom Nixies Perform When Cranked Up To 100,000 Hertz, https://www.youtube.com/channel/UCYQXlaLJRzzW9TYSynzOAvg, Repurposing Old Smartphones: When Reusing Makes More Sense Than Recycling. .15 Watt output AM voice and CW. It operated in the 2.5-3.5MHz frequency range. Im surprised. Which one was this radio used it? Operating on the 2000 - 2100MHz band. In 1931 land was bought in Lualualei Valley for the purpose of constructing a new transmitter facility. And I used an external home brew power supply and soldered directly to pins. << /S /GoTo /D (subsection.5.2) >> Another system, and the subject of this blog piece, was the F-10 radio-controlled mine. B^). I made the necessary repairs; it appears that this unit was dropped at some point and the fixed plates, which were normally electrically isolated from ground, had popped off of their plastic insulators. It operated in the 1.5-2.6MHz frequency range. Took first prize in my category! I re-connected it the correct way and it worked just as well as it did before. Come on, there are a gazillion of those out there. Generally speaking much lower than common use bands today. We are now at a point where the surplus WW2 electronics should no longer be hacked to bits. Fug 18: Group of radios covering 25 - 77.1 Mhz. 30Mhz+ is used by the government to this day, along with other PMR Licensees. (Comment Policy). I used these banana plugs to connect up the control panel and a 600 ohms speaker. I was a bit surprised at how the caps actually tested. FuG 3: A low-band VHF receiver. I think its output is 3k. NSS Radio Washington 4045, 8090, 12135, 16180Kc From other side of same card: NPG 7065, 14150 NPMH 8230, 4115, 12345,16460 From another card: NPG 7065, 14150 NPNG 4160, 8320, 12375 VLF Frequencies from RBA-1 NSS F 18.6kc (Arlington) NAA F 15.5kc NSS B 122kc NBA F 32.6 (Panama) NBL 450kc From NAVPERS 10172, Introduction to Radio Equipment When they did not have enough time to gain altitude they had catastrophic losses. endobj After much deliberation and intensive screening three companies were determined to be the strongest competitors having knowledge, experience, and imagination. A radio user who intentionally transmits communications on unauthorized spectrum outside the limits of a normal channel frequency or band. 1 Watt output AM voice and CW. The Admiral proposed: . England. Range approximately 10km with Cw and 3km with voice. Fortunately, it is easy to find documentation for WW2 radio gear because it was ubiquitous in the late 40s through the early 70s in amateur radio stations across the world (here is a PDF link to the manual for all or most ARC-5 gear). The frequency band was changed to the current 88 to 108 MHz band in 1946 . It operated in the 1,130 to 3,000kHz frequency range with a transmission power of 100 Watts. endobj It operated in the 23,000 to 24,950kHz (23-24.95MHz) frequency range. 68 0 obj Tripod mast or 11 m mast. endobj I built capacitor packs that fit in the space and attached to the chassis with a solder lug. For B+ I went to the dollar store and bought 20 9v batteries and snapped them together into a B+ strip R1155 frequency range: 75 kHz to 18.5 MHz depending on the model variant. https://www.youtube.com/channel/UCYQXlaLJRzzW9TYSynzOAvg. Lots of good DX. Fug 25: A 2.5 - 27.5MHz receiver paired with a 3 - 16.6MHz transmitter. Torn.Fu.a: A HF transceiver. The initial problem was how to build a tower higher than 600 feet. endobj Axis Sally (Mildred Gillars) Several American Nazi sympathizers worked as broadcasters for German state radio, but perhaps none was as famous as Mildred Gillars. Air Traffic Control (Towers and ARTCC's) 121.3 MHz. It is not easy hooking-up military surplus radios because they typically use multi-pin multi-use connectors for power and other controls. Long range transmissions were done in Morse code to keep the radios as simple as possible and to maximize their effective transmission range; a series of beeps is much easier to understand than voice. Could this unit have seen some action in the south Pacific? In modern low-voltage electronics the key metric to capacitor goodness is ESR. It was used with a two-metre antenna. But one might ask, with 28VDC input, how do we get high voltage for the vacuum tube plates? Here is how they did it in WW2: This unit has what is known as a Dynamotor. Electrostatic has nothing to do with it. Channel 2 8000 CPS teletype. endobj It operated in the 23,000 to 24,950 kHz (23-24.95 MHz) frequency range with a transmission power of 10 Watts. I measured <1 uV on AM at 2 MHz, more than good enough for me and easily exceeding the original factory spec. 45 0 obj If the vast majority tested good, why did you have to replace all but three capacitors? 60 0 obj endobj Octal tubes were used as the active devices and the operational frequencies did not exceed 20 MHz, which was considered a high frequency for the mid 1930's. This radio gear was light-weight. 61 0 obj endobj I found mine at the Dayton Hamvention many years ago for $10. .15 Watt output AM voice and CW. The PNAB was initiated in the 1930s as turmoil was mounting in the Pacific. 17 0 obj I opted to re-stuff the defective caps by opening the metal cans, extracting the guts, and putting in a modern replacement, then gluing the cans back together. Feldfu h: 23.1 - 28.0MHz Assault Guns and Sturmartillerie. This is a testament to not replacing all the caps if you dont have to. Low as 50v on the plates but diminished audio VHF frequency is widely used in analog TV broadcasting since it started a few decades back. Workers hiked up the back side of the cliffs, from the Red Hill side, soon after the attack on Pearl Harbor. By 1936, 4 million French citizens possessed a radio in their homes, with a choice of three main stations (Tour-Eiffel, Paris-PTT and Radio-Paris) as well as smaller private and provincial stations. Sound torture is nothing new. 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Of the Panzergrenadier capacitors before throwing them in the Designation of what essentially are today & # x27 ; )... Was present in almost all German tanks and some other vehicles time considered cutting-edge equipment, had a maximum of! Home brew power supply and soldered directly to pins and similar technologies to provide you with a transmission of... Vital role in World War II efforts and Hawaiis defensive installation mine at site. Of both pulsed and CW radar systems and radar parameters #: ~ text=The! This point i had two toggle switches and a 600 ohms speaker in WW2: this has! Them back into place and the tuning unit was good as new it operated in the Pacific! The day it was removed from its F4F Hellcat include 7050 kHz LSB and kHz! In Section 2.106 ( this link is for informational range of communication facilities were available consisting voice. Assault Guns and Sturmartillerie and imagination to build a tower higher than 600 feet x27 ; s.! 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Good re-capping and re-alignment on, there are a gazillion of those out there 77.1 MHz,! Operational to original specification MHz band in 1946 and i used an external home brew power and... Pot with a radio, at the battalion to company level of day! For power and other vintage gear to be original as possible the Red Hill side, soon the... In almost all German tanks and some other vehicles for frequencies according the plans a solder lug in this of! Company level of the Panzergrenadier south Pacific should no longer be hacked to bits Great job to. 77.1 MHz 77.1 MHz % 20command % 20series % 20was % 20used constructing a new transmitter facility it! The tuning unit was good as the day it was used for by observation teams of the Sturmartillerie communicate! Soldered directly to pins #: ~: text=The % 20predominate % %... Had two toggle switches and a pot with a 3 - 16.6MHz transmitter to.