Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default Olson TE-209 sine/square generator problem

On Thursday, May 1, 2003 at 9:14:26 AM UTC-7, Rob Hampshire wrote:
"Charles Schuler" wrote in message ...
If the thermistor forms a voltage divider with a fixed resistor, try
increasing the value of that resistor (perhaps 10X or so).


I think it does... One end of the thermistor goes to a cathode of the
6bm8, and there is a resistor that goes from the same cathode to
ground. I'll try increasing that resistor and see what happens...
although I snapped the top off of the 6bm8 the other night while
removing the spring retainer, and I don't have a spare. Bummer!
Guess it'll be a while before I can futz with it again. Thanks for
your help Charles!

Rob


Hi Rob, Just replace 0.1uf 600V cap on 6BM8 tube and everything will be fine.
Take care
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Default Olson TE-209 sine/square generator problem

On Mon, 27 Apr 2015 23:17:06 -0700, novoroshollywood wrote:

On Thursday, May 1, 2003 at 9:14:26 AM UTC-7, Rob Hampshire wrote:
"Charles Schuler" wrote in message
...
If the thermistor forms a voltage divider with a fixed resistor, try
increasing the value of that resistor (perhaps 10X or so).


I think it does... One end of the thermistor goes to a cathode of the
6bm8, and there is a resistor that goes from the same cathode to
ground. I'll try increasing that resistor and see what happens...
although I snapped the top off of the 6bm8 the other night while
removing the spring retainer, and I don't have a spare. Bummer!
Guess it'll be a while before I can futz with it again. Thanks for
your help Charles!

Rob


Hi Rob, Just replace 0.1uf 600V cap on 6BM8 tube and everything will be
fine.
Take care


Especially if done back in May 1, 2003, when Rob's message was dated...

Mike.
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