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DIY TDA1541A PCB "D3"

Would you like a through hole version of the D3?

  • Yes

    Votes: 12 52.2%

  • Maybe, depends on the performance

    Votes: 11 47.8%
  • Total voters
    23
  • Poll closed .
Jump to Latest
#267
ggetzoff said:
Ryan,

I've received the I2s convertor board. Thanks. Do I want to use a right-justified convertor board?

Going to start my build tommorow and have an S1 Crown on
the way.

Cheers,

Greg
Click to expand...

Much better 😀
 

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#269
D3 CapMX PSU details

Details for D3 PSU PCB mentioned in post #259.

I'm using F-212Z from triad but its nothing special, all you need is two 24V windings rated at 24VA.

Depending on your mains regulation in your area you may want to adjust R4 and R5. I've found that 15R is about right to get an output of around 26 to 27V.

The diodes im using are BYV29 - but you may use whatever you have. You might want to get some schottky diodes - Allow for a current pulse of around 2.5A.

D3 CapMX PSU BOM

D3 CapMX PSU Schematics
 
Last edited:
#274
S1

I think the lettering on the S1 was all over the place. Here is a pic of mine from 88. I have no idea if it is genuine but it works and sounds as people describe.
I use the S2. Some like it some do not. Lucky to have choices.
 

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#278
Guys,

I bought it with my Credit Card, so if it's a fake I've got 6 months to claim it as fraud. My CC company will ask no questions and refund my money. The vendor I bought it from sells a lot of vintage NOS components. He's got some really odd old stuff. Been around a long time.

I'm not worried about it and I have my plain 1541 non A (non SEM) to compare it to.

We shall see soon enough....not worried.

Cheers,

Greg
 
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