Yes, one channel is shown on the schematic. You can use the same PSU if supply voltage is correct.
... Stereo Schematic ... something is missing ?
You have your -24V power feed is connected wrong. The extra 100nF caps aren't needed. They are already there (C2 and C4). This should have input filters to block DC and high frequency noise too.
keep the local decoupling beside each of the amplifiers.
Maybe worth adding some beside the 4 resistors R1 & R2?
Maybe worth adding some beside the 4 resistors R1 & R2?
If R1 and Q5 are very close then one decoupling can supply both. If one has an inch, or more, of trace between them, then each would benefit from having their own local decoupling.
That's ok - you can just keep R1 close to Q5, R2 close to Q6 on the layout, and place C2, C4 close to them respectively 😉
Yes, but in this case it needs some "power-up":
R1, R2 = 220R
R7, R8 = 4R7
R6 = 10R
MJE3xx need some small local heatsinks.
Power supply should be capable of giving at least 50mA (for 2 channels).
It is also recommended to use some simple output protection in case of DC coupling - if something goes wrong, DC at the output will likely kill the phones 😉
No reference to GND at input and output thus risks for plops when connecting cables. No protection against cable capacitance, No HF/RF input filtering. No DC blocking at either input or output. No muting relay so burned "woofer syndrome" when wrong power on sequence is done.
Not suitable for generic use.
Not suitable for generic use.
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