[Premium-Rx] Wanted schematic for A8 IF board in HF-8054A receiver
Kim Briggs Echo Natural Resources
echoreso at bigpond.net.au
Sun Feb 9 18:02:04 EST 2014
Hi,
Here are some of the HF-80 boards by part no & eqt. The boards are very
similar, the major variations are AGC time constants & the filters
fitted. I am pretty sure that the 8050 board is the same as the 851S-1
board. I can supply pdfs of most boards if you need them.
Regards, Kim
Channel A IF 637-2649-001 8010A BW 2.75 kHz 526-9955-010 USB,
526-9679-010 LSB
Channel A IF 637-2649-002 8010A BW 3.05 kHz
Channel A IF 637-2649-003 8010A BW 5.80 kHz
Channel A IF 637-2649-004 8010A BW 2.35 kHz
Channel A IF 637-2649-005 8010A BW 3.10 kHz
Channel A IF 637-2650-001 851S-1 8054A ? 8050 BW 2.75 kHz
526-9955-010
Channel A IF 637-2650-002 851S-1 BW 3.05 kHz 526-9980-010
Channel A IF 637-2650-003 851S-1 BW 3.10 kHz 526-9985-010
Channel A IF 637-2650-005 851S-1 BW 5.80 kHz 526-9976-010
Channel A IF 637-2650-006 851S-1 BW 2.75 kHz 526-9955-010
Channel A IF 637-2651-001 8010A BW 2.75 kHz 526-9955-010
Channel A1 IF 638-6871-001 8054A Voice-data-fax TC
Channel A1 IF 638-6871-002 8054A Fast-medium-slow TC
Channel B IF 637-2649-001 8010A BW 2.75 kHz 526-9956-010
Channel B IF 637-2649-002 8010A BW 3.05 kHz
Channel B IF 637-2649-003 8010A BW 5.08 kHz
Channel B IF 637-2649-004 8010A BW 3.10 kHz
Channel B IF 637-2647-001 851S-1 BW 2.75 kHz 526-9956-010
Channel B IF 637-2647-002 851S-1 BW 3.05 kHz 526-9981-010
Channel B IF 637-2647-003 851S-1 BW 3.10 kHz 526-9986-010
Filter 636-2515-011 8050A 526-8321-010,
526-8321-020, 526-8322-010, 526-8322-020, 526-8223-010
Filter 637-2515-001 8054A BW 6.0 khz
Filter 637-2515-002 8054A BW 6.0 kHz, 200 Hz, CR
Filter 637-2515-003 8054A BW 6.0, 3.0, 1.0 khz,500,200Hz
Filter 637-2515-004 8054A BW 2.75 kHz
Filter 637-2515-005 8054A BW 2.75, 6.0, 3.0, 1.0 kHz, 500,
200 Hz
Filter 637-2515-006 8054A BW 6.0, 3.0, 1.0 kHz, 500, 200 Hz
Filter 637-2515-011 8054A BW 6.0, 3.0 kHz, 200Hz
526-9963-010, 526-9963-030, 526-9963-060
Filter 635-0905-001 8054A BW 6.0, 3.0 kHz, 200Hz
635 0905 001526-9963-010, 526-9963-030, 526-9963-060
Filter 637-2515-001 851S-1 BW 6.0, 3.0, 1.0 kHz, 500, 200
Hz 526-9963-060, 526-9963-040, 526-9963-030,526-9963-020,
526-9963-010
Filter 635-0905-002 851S-1 BW 6.0 kHz, 200 Hz, CR
526-9963-060, 526-9974-010, CR
Filter 637-2515-003 851S-1 BW 6.0, 3.0, 1.0
khz,500,200Hz 526-9963-060, 526-9963-040,
526-9974-030,526-9974-020, 526-9974-010
Filter 637-2515-004 851S-1 BW 2.75 kHz 526-9956-010
Filter 637-2515-005 851S-1 BW 2.75, 6.0, 3.0, 1.0 kHz, 500,
200 Hz 526-9956-010, 526-9963-060, 526-9963-040,
526-9974-030,526-9963-020, 526-9963-010
Filter 637-2515-006 851S-1 BW 6.0, 3.0, 1.0 khz,500,200
Hz 526-9963-060, 526-9963-040, 526-9963-030,526-9963-020,
293-1333-010
> If it happens to be the same as the one in the 851s1 I have that info in digital form. Best Scott
>
> Make something good happen!
>
> On Feb 9, 2014, at 3:35 PM, GandalfG8 at aol.com wrote:
>
>> I think the A8 board is the filter board rather than the IF board itself,
>> is that what you meant?
>>
>> Regards
>>
>> Nigel
>> GM8PZR
>>
>>
>> In a message dated 09/02/2014 21:12:52 GMT Standard Time, sm0aom at telia.com
>> writes:
>>
>> Hello,
>>
>> I am looking for a copy of the schematic for the fully populated
>> 450 kHz main IF board A8 in the Rockwell-Collins HF-8054A receiver.
>> The same board was also used in other HF-8050 series receivers.
>>
>> 73/
>> Karl-Arne
>> SM0AOM
>>
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