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PCB files contributed for redesigned Sansui 9090DB F-2655 Dolby board

@Biroc thank you so much for the enormous effort in designing this work of art. @ivandezande - they look amazing! Just ordered some as my 9090DB is currently on the bench and I really don't fancy another repin. Is there a BOM for this somewhere?

Awesome work!!!
 
Thanks for the kind words! Regarding a BOM, the original plan was to swap out the PCB and be done. We looked at replacing the diodes and pots, but both of them were hard to find. I don't think we ever found equivalent pots, and considered going with a more common hole pattern, but it would've required expanding the size of the PCB, so we decided to stay with the stock pattern and re-use the old pots. With a little finesse, I'm sure one could bend a replacement into position without too much effort.

If you're just after what the parts are, there is a "reference designator" and "value" column on the PCB specs tab in the notes spreadsheet in the zipfile.
 
Biroc said:
Thanks for the kind words! Regarding a BOM, the original plan was to swap out the PCB and be done. We looked at replacing the diodes and pots, but both of them were hard to find. I don't think we ever found equivalent pots, and considered going with a more common hole pattern, but it would've required expanding the size of the PCB, so we decided to stay with the stock pattern and re-use the old pots. With a little finesse, I'm sure one could bend a replacement into position without too much effort.

If you're just after what the parts are, there is a "reference designator" and "value" column on the PCB specs tab in the notes spreadsheet in the zipfile.
Click to expand...
That makes complete sense - thanks very much!
 
is anyone replacing the NE545B chips with new or are these likely to be poor quality fakes?
 
What software did you use to design these boards? I tried something called EasyEDA, but it seemed very geared towards surface mount components. I managed to fudge it, and make a replacement power meter board for a NAD 3020. But when the boards arrived (from JLCPCB), I found that the file I used for the 14-pin chip had the wrong spacing, so the boards are essentially junk.
 
Folks, I'm in the southwest of Western Australia. Cost is $35 postage plus $20 for the PCB - total $55 Australian Dollars. It may be cheaper for you to order your own from JLCPCB or get a someone stateside to send you one, as it will be a lot cheaper. It cost me AUD $100 to land 5 boards downunder, so I'm only covering my costs ;)
 
Very impressive design data on that s/sheet @Biroc !! Such attention to detail - thank you so much!!

I only have the F-2653 and F2624 to do on my 9090DB so I'm getting a BOM together from our favourite supplier, for this new F-2655. I have L01, 02 inductors, the 5mm trimmers (access top and below). I have all the resistors (1% metal film axial), germanian diodes and low ESR\C0g\PP film caps in stock .

work in progress ...

L01, 10mH inductor, 542-RL875S-103K-RC
L02, 10mH inductor, 542-RL875S-103K-RC
VR01, 5mm 100K trimpot, 542-RL875S-103K-RC
VR02, 5mm 100K trimpot, 542-RL875S-103K-RC
VR03, 5mm 47K trimpot, 31-PT6KV473A2020EPM
VR04, 5mm 47K trimpot, 31-PT6KV473A2020EPM
VR601, 5mm 47K trimpot, 31-PT6KV473A2020EPM

Long shot ... does anyone know if the pre-crimped and insulated, vertical mount resistors are still available anywhere?
 
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