Hi, I want to design my first amplifier, but I can't simulate the shematic.
There is the LTSpice software but I don't have the transistors models.
Can anyone tell me if the schematic is good?
There is the LTSpice software but I don't have the transistors models.
Can anyone tell me if the schematic is good?
An externally hosted image should be here but it was not working when we last tested it.
It might help tremendously if the schematic were actually visible. This is why you can attach files here.
I see nothing that Mr. Cordell and this thread couldn't fix.
BTW, you'd be better advised to go with KSC3503/KSA1381 for Q9/10. BD139/140 make fairly lousy VAS transistors.
Circuit is also missing output inductor (~1 mH air, || 4.7...10 ohm) and Zobel network, hopefully still to be added.
I see nothing that Mr. Cordell and this thread couldn't fix.
BTW, you'd be better advised to go with KSC3503/KSA1381 for Q9/10. BD139/140 make fairly lousy VAS transistors.
Circuit is also missing output inductor (~1 mH air, || 4.7...10 ohm) and Zobel network, hopefully still to be added.
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