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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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11th Mar 2012, 7:45 pm | #1 |
Pentode
Join Date: Apr 2009
Location: Durham, UK.
Posts: 165
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Racal RA1205 Information
Hi
I have been given a Raca RA1205 to Dwg no DA39934A and would like to get it going. I realise it is a single channel Xtal controlled receiver but have no idea about power supplies or other details. It looks like new and has a crystal in skt 1 and two unconnected wires at a small circuit board in the middle of the RHS of the receiver. They look as if they have never been connected. Does anyone have a handbook, manual or circuit for it? Any help most appreciated. Regards Jeff |
11th Mar 2012, 9:24 pm | #2 |
Retired Dormant Member
Join Date: May 2010
Location: Kidderminster
Posts: 16
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Re: Racal RA1205 Information
models include:
RA1205/A DA39934/A Basic receiver not equipped with mode filters , crystals. RA1205/A DA39935/A Single channel receiver for AM/CW with 7 Khz bandwidth RA1205/B DA39935/B As DA39935/A but with 12 khz filter RA1205/C DA39935/C Equipped for AM/CW with 1.2 Khz filter RA1205/A DA39936/A Equipped for USB/CW RA1205/A DA39937/A Equipped for LSB/CW RA1205/A DA39938/A Equipped for FSK/CW with 1.2 Khz bandwidth ( Standard) RA1205/B DA39938/B Equipped for FSK/CW with 500 Hz Bandwidth RA1205/C DA39938/C Equipped for FSK/CW with 1.2 Khz bandwidth and BFO offset crystal RA1205 DA39941/1-8 Framework assembled with up to 8 x RA1205. Framework MA606/A RA1205 DA39941/9-12 Framework assembled with up to 4 x RA1205 Framework MA606/B |
11th Mar 2012, 11:40 pm | #3 |
Pentode
Join Date: Apr 2009
Location: Durham, UK.
Posts: 165
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Re: Racal RA1205 Information
Thanks Ben
I'm pretty sure that it started out as a DA39934/A. There are two xtals in it. In the oven (skt1) is a 1300kcs and in skt2 100kcs. I can't see a filter in there, but that's probably what the 2 unconnected wires are for. Regards Jeff |