[Premium-Rx] Wanted schematic for A8 IF board in HF-8054A receiver

[Heinz Breuer]

Hello Kim,
thank you very much for the very comprehensive summary. It is the best 
overview I have seen anywhere. I printed it out and put into my manuals.
vy 73 Heinz DH2FA, KM5VT

Am 10.02.2014 00:02, schrieb Kim Briggs Echo Natural Resources:
> 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
>