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#1
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OMG, What a wonderful time we had with a complete set in the late
'40's. We called it a "Tank set". Ours had English and Russian panel markings. The headsets, keys, and microphones were used on all sorts of home brew (surplus conversions) It included a VHF transceiver, which we actually were able to make a two way contact between two "tank sets". I don't recall if the frequencies were even on a Ham band. What a wonderful whine the dynamotors emitted until the car battery died. Had to be sure to park on a hill to get the car started after half an hour operating "mobile" with the included whip antennas. W7KGV, W7MGG, W7LAN, W7FXD, W7LTQ. Old Chief Lynn "Vintagebob" wrote in message ... I am helping an elderly gent sell of his items before going to a care facility. He has a Signal Corp MK II No. 19 wireless set dated Sept 1944 from Philadelphia which he purchased in 1951 and was new then. It seems to have every conceivable piece of equipment it could have come with. Including the spares box with a Morse Key, variometer, signal generator, amplifier, grill cover two sets of unused 50' cloth-covered wire, two microphone marked #7, a power unit, head phones, brackets and much more. It appears almost mint. NO damage or rust stored ina dry environment. He did tell me he converted it to 120V in 1951, listened then lost interest and put it away. What can or should I do to sell it? Yes, I have pics of everything -- Vintagebob |
#2
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coffelt2 wrote:
OMG, What a wonderful time we had with a complete set in the late '40's. We called it a "Tank set". Ours had English and Russian panel markings. The headsets, keys, and microphones were used on all sorts of home brew (surplus conversions) It included a VHF transceiver, which we actually were able to make a two way contact between two "tank sets". I don't recall if the frequencies were even on a Ham band. The VHF transceiver fundamental can be set for the 220 Mhz ham band, but because of the drifting and the AM modulation, they take up pretty much the whole band. Also the spectral purity is... not exactly good. I would not not recommend firing one up today. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#3
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On Fri, 6 Jul 2012, Scott Dorsey wrote:
The VHF transceiver fundamental can be set for the 220 Mhz ham band, but because of the drifting and the AM modulation, they take up pretty much the whole band. Also the spectral purity is... not exactly good. I would not not recommend firing one up today. But that's not really unique to the Model 19. Assuming it's a superregen receiver and modulated oscillator, that sort of thing homesteaded the vhf and uhf bands. They were great when there was little use, they were simple to build and cheap, it got people on the air. And then "civilization" would come along, fancier equipment and a desire for DX. So they were banished from six metres (maybe when it was still 5 metres?) and moved to 112MHz or if after the war, 144MHz, made an impact and then were banished from there. 220 next, to the extent that 220 was ever used, then 420MHz. Those APX-6 radar transponders were more complicated (but had the advantage of being cheap surplus) but did the same thing for 1215MHz, a simple transmitter with a broad receiver to match. Decades later, all those cheap doppler radar gizmos converted for use on the 10,000MHz band was similar. One could even argue that the Heathkit Lunchboxes were in a similar vein, simple and cheap, yet more civilized since the transmitters were crystal controlled. Though of course, there never was a Heathkit produced "220'er" (I'm sure I've seen a modification article where someone put one on 220MHz) or a "420'er" (but there were early CB sets that had similar innards, and one article in "73" about 1968 that was a fairly cheap and easy transverter made out of juice cans that was intended for a Sixer or Twoer. Michael VE2BVW |
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