Need help with transistor match

In a Moog Mood? Here's a forum for discussion of general Moog topics.
Post Reply
RobLewis
Posts: 1
Joined: Sun Feb 21, 2021 10:18 am

Need help with transistor match

Post by RobLewis » Sun Feb 21, 2021 10:22 am

Hi ,I'm repairing a mini contour / keyboard pcb.
Q9 was snapped off , so I've decided to replace the pair --Q9 & Q11 with 2n3904/2n3906 pair.
The footnotes on the schematic state that the PNP should be matched to 10-20mv lower than the NPN @ 200MA.
With the transistor matching cct provided , how do we do that?
Regards.

Post Reply