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| Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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23rd Aug 2011, 2:29 pm
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#1 |
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Heptode
Join Date: Oct 2008
Location: Aalborg, Denmark
Posts: 903
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BC-647 US Army-transmitter
BC-647
Any info on this transmitter (possibly a combined Rx/Tx) All that I know about it is that the Tx is suppose to be built around a 2C34 dual power-triode. The same I used in this audio PP-amp: https://www.vintage-radio.net/forum/...ad.php?t=67511 I've been trying to find out exactly where this valve was used around the productiontime of late 30'ies and into the 40'ies. There's still plenty around so it must have been produced in big quantities, but for WHAT...? More or less these valves are equal in data but may differ in sockets: 2C34 / RK34 / DET-19 / 4074-A / 33A / 138A / VT-224 / CV18 rgds, /tri-comp Last edited by tri-comp; 23rd Aug 2011 at 2:39 pm. Reason: added one more equivalent valve |
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23rd Aug 2011, 3:24 pm
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#2 |
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Dekatron
Join Date: Aug 2003
Location: near Reading (and sometimes Torquay)
Posts: 3,099
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Re: BC-647 US Army-transmitter
All I can tell you is that it is the transmitter part of SCR-535
It's the US version of the British IFF Mk-IIG. |
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24th Aug 2011, 11:55 am
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#3 |
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Heptode
Join Date: Oct 2008
Location: Aalborg, Denmark
Posts: 903
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Re: BC-647 US Army-transmitter
Thank you.
I've searched and still found nothing. Oh, well there's a lot of manuals to be looked through on the web. Someone must have used it  rgds, /tri-comp |
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