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| | |-+  Adjusting Preamp voltages in OTS 50(?)		 « previous next »
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Author Topic: Adjusting Preamp voltages in OTS 50(?)  (Read 3012 times)
Paul B
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« on: October 19, 2013, 05:14:56 PM »
Greetings everyone,
I just completed my OTS 50 build and although I have moderately high voltages in the power amp section (472 CT, 470 on plates and screens), my preamp voltages are off the charts (V1 pin 1 363V pin 6 366V;  V2 pin 1 369V pin 6 241; V3 pin 1 304V pin 6 294V). Do I need to adjust the resistor values in the power supply to the preamp section or should I be looking for something else?  Thank you for your assistance.

Paul
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hywelg
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« Reply #1 on: October 21, 2013, 02:55:22 PM »
These voltages are with valves in all the sockets?

How is you wall voltage?

Did you use Ceriatone trannies?

Do you have Niks voltage chart for your model? They do vary from model to model.
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