Looks very well built.
I have to have bass , treble loudness and a phono pre option in there. Cd amplifier is useful as it could boost a phone signal
I have to have bass , treble loudness and a phono pre option in there. Cd amplifier is useful as it could boost a phone signal
From the BOM C8, C11 are 47 uF, 35V. Mouser part is 80-C2220C476M3R2C which is 25V.
With PSU voltage of +/- < 20 V its should be ok.
The real problem seems to be the availability of KSA1381E/D.
With PSU voltage of +/- < 20 V its should be ok.
The real problem seems to be the availability of KSA1381E/D.
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happy new year, tombo and all other bliss builders
Thank you and a Happy New Year to all.
Let you ears find happiness after successful DIY builds.
I’ve entered New Year with favorite music and finest beer (double barrel aged stout) flowing.
Let you ears find happiness after successful DIY builds.
I’ve entered New Year with favorite music and finest beer (double barrel aged stout) flowing.
Hi Joel,
Use JLCPCB, much better pricing.
Never a problem with quality😉
Use JLCPCB, much better pricing.
Never a problem with quality😉
😱 That’s the reason I don’t order at the PCBway.
It is only 29 $ + shipping at JLCPCB.
Color by choice (purple 🙂) and all 4 layers with 1 oz copper - 50.33 $
Thanks! Most of mine have been under 100x100mm at $5 for 10. Larger than that PCB way price rises significantly
Thank you once again Tombo. I'm finally going to be proceeding with this build. Does anyone have boards they want to sell / split the cost with?
I expect them to be the proper equivalent devices, but haven’t used them anywhere. Instead, I recommend to use TTA004B/TTC004B. They are perfect replacement in this case.
As in this design, Q2-Q7 are not in any usual VAS or differential input role, they don’t need to be matched. All measurements were made with unmatched devices.
Higher hfe is a good thing.
Luckily, bias is not dependent on hfe variation, so nothing to worry about.
Luckily, bias is not dependent on hfe variation, so nothing to worry about.