Sriskie
Well-Known Member
My new test method for measuring hfe... After hooking them to the Peak Atlas I let them acclimate for a few minutes until I get consistent results. The original A872s measure 413/459. Swapping their positions on the board raised offset from 20mV to 48mV. After returning them to the way they were and changing R444 to a 1K Ohm it's sitting at about 2mV...good enough.
Testing the ZTX795As I installed earlier netted 367/369 after letting them stabilize. Lower gain than the originals but much better matched. Not sure how that effects things.
Now onto the left channel.
Testing the ZTX795As I installed earlier netted 367/369 after letting them stabilize. Lower gain than the originals but much better matched. Not sure how that effects things.
Now onto the left channel.
