0

original 303 power supply
Moderators: altitude, adafruit_support_bill, adafruit, phono, hamburgers

Please be positive and constructive with your questions and comments.

Re: original 303 power supply

by 3phase on Sun Dec 21, 2014 5:33 am

i used he original circuits transistors.
3phase
 
Posts: 195
Joined: Wed Apr 22, 2009 2:06 pm

Re: original 303 power supply

by aminoacid on Mon Dec 22, 2014 12:24 pm

i used
KSC2383
KSA1013
and the original power transistor.

i also added the resistor that is missing around the op amp.
aminoacid
 
Posts: 352
Joined: Tue Jun 20, 2006 5:27 am
Location: acidburg

Re: original 303 power supply

by 3phase on Tue Dec 23, 2014 11:38 am

what missing resistor?
3phase
 
Posts: 195
Joined: Wed Apr 22, 2009 2:06 pm

Re: original 303 power supply

by aminoacid on Tue Dec 23, 2014 11:51 am

r177 of the tb303 is not found in the xoxbox. it has been removed and replaced by straight wire.

you can find it between one of the outputs and inputs of the op amp in the psu.

i suspect its a noise reducer or something...
aminoacid
 
Posts: 352
Joined: Tue Jun 20, 2006 5:27 am
Location: acidburg

Please be positive and constructive with your questions and comments.