News:

Forum may be experiencing issues.

Main Menu

Cosmopolitan Parts Help

Started by angrykoko, March 20, 2012, 02:20:31 AM

Previous topic - Next topic

angrykoko

Couple of quick questions.

D1 - Can I sub a 1N4001 or 1N5818 or ?? in place of the 1N5817. 
C2 - Cant find a 200pf cap, would it be better to parallel (2) 100pf  or would a 220pf or 180pf be ok?
Q2 - BC109 - Hfe average around 200 Ok?  or higher better?

Thanks!





The early bird may get the worm, but the second mouse gets the cheese in the trap.

sgmezei

The D1 sub will be good.

For the caps, check the tolerances. They are probably 20% which means you could do either. I would do the two 100pf's in parallel just because that will probably get you closer to 200pf.

For Q2 I am not sure. I haven't swapped mine out and tried any others. But it is a good starting point to see how it sounds.

angrykoko

The early bird may get the worm, but the second mouse gets the cheese in the trap.