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Chunk Chunk J201 bias voltages?

Started by zilla, February 11, 2014, 04:44:54 AM

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zilla

Just looking for a sanity check here.

I tuned my Chunk chunk to what i think sounds good, but the voltages that I am reading on the test points seem a bit out of whack:

Vin 9.02 V

TP1:  1.811 V
TP2:  3.465 V
TP3:  1.816 V
TP4:  3.890 V

*confused*

I know that there is supposed to be a lot of variation between J201s, but none of my bias voltages are over 1/2 of Vin


gingataff


jimilee


Quote from: gingataff on February 11, 2014, 12:09:56 PM
tayda?
I just had some trannies I couldn't bias below 7v, swapped them, all good now. Tayda...
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

zilla


Govmnt_Lacky

Quote from: zilla on February 11, 2014, 04:44:54 AM
I tuned my Chunk chunk to what i think sounds good...

Thats all that matters!  ;)