Does anyone have any idea what VR2 does? I’ve measured and scoped and everything. Cannot figure out what it does or how to set.
I asked purr1n and Craig. Craig responded that they have lost the schematics for the BW2, but told me to measure the DC across the emitter...
Turns out things were not all ok. That same channel had 400mV of DC offset and other issues. Turns out D1 and D2 were blown. Replaced those and...
Hoping someone can help me with a Black Widow 2. I recently got one on loan, and one of the LEDs inside (D15) was dead. Tried replacing it, no...
Where can I buy the thin iron banding to wrap the power transformer? I have a ZDT that's humming, so I want to move the toroid forward and wrap it.
I saw that response and could not understand what is dangerous about the mod, nor could actual electrical engineers I discussed this with. The...
Looks great! It's a really nice amp that I think a lot of people would enjoy. As Tommy said, those output impedance measurements were with 7581a...
Separate names with a comma.
