Khron-Hite UHR220 tube power source

bobhedberg · 12th June 2011, 09:37 PM

Hi

Does anyone have a schematic for a Khron-Hite UHR-220 tube power supply?
It works for about 10 minutes, then the voltage rises to about 250 V, and still varies.
I suspect the regulation feedback is opening somewhere and it's running full tilt.
I'm tired of poking around the multitude of components, testing the tubes, and resoldering what I can get at.

Thanks,
Bob

tomchr · 13th June 2011, 06:21 PM

This is a duplicate thread. I posted a response to the same thread in the Equipment&Tools forum.

~Tom

bobhedberg · 24th June 2011, 06:13 PM

Emailed Khron-Hite, and sales found the last manual they had and emailed it to me as a PDF. No charge.

That's what I call a great company.
If anyone would like it, let me know.
Bob.

12th June 2011, 09:37 PM	#1
bobhedberg diyAudio Member Join Date: Sep 2004 Location: Daytona Beach FL	Khron-Hite UHR220 tube power source Hi Does anyone have a schematic for a Khron-Hite UHR-220 tube power supply? It works for about 10 minutes, then the voltage rises to about 250 V, and still varies. I suspect the regulation feedback is opening somewhere and it's running full tilt. I'm tired of poking around the multitude of components, testing the tubes, and resoldering what I can get at. Thanks, Bob __________________ Bob Hedberg

24th June 2011, 06:13 PM	#3
bobhedberg diyAudio Member Join Date: Sep 2004 Location: Daytona Beach FL	Emailed Khron-Hite, and sales found the last manual they had and emailed it to me as a PDF. No charge. That's what I call a great company. If anyone would like it, let me know. Bob. __________________ Bob Hedberg

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13th June 2011, 06:21 PM	#2
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	This is a duplicate thread. I posted a response to the same thread in the Equipment&Tools forum. ~Tom

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