You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

That puts only 0.272v across D64, and being it is silicon, that's too low. I think D64 turned into a resistor (or was accidentally replaced with a germanium diode like a 1N60).

As for there being such a high voltage on the cathode with VR12 fully CCW, either the fully CCW position is not 0Ω or that bugger got wore out and went high Ω's.
Pull D64, test it out of circuit, and while it is out, ohm across VR12 to verify its range of resistances.

[QUOTE="brandon7861, post: 833237, member: 53724"] That puts only 0.272v across D64, and being it is silicon, that's too low. I think D64 turned into a resistor (or was accidentally replaced with a germanium diode like a 1N60). As for there being such a high voltage on the cathode with VR12 fully CCW, either the fully CCW position is not 0Ω or that bugger got wore out and went high Ω's. Pull D64, test it out of circuit, and while it is out, ohm across VR12 to verify its range of resistances. [/QUOTE]

Top Bottom