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Old 9th March 2021, 07:36 AM
bob orbell bob orbell is online now
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Join Date: Nov 2009
Location: kettering northants.
Posts: 2,300
Default Re: Phono 3 noise issues

Something wrong here Damion, both Pre and Phono should have about the same voltage unloaded, loaded it should drop to 250v + - 10 to 15 %, the heater voltage is elevated, at the heater pins it should be 6.3 + - 10 %, I need to get my test papers out to tell you how to measure the elevated heater voltages, this is about 45 volts. Do you have the build papers yet, and are they for the II or III. Bob
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