07-01-2016, 07:19 PM
Just so you know this is just a hobby for me too but have been at it for 50yrs or so.
Your screen voltage for the mixer and if amp is too low. Check #64 too high in resistance, 79 too low in resistance,and 68 leaky or shorted.
If values are ok then pull 78 and check sg voltage then pull the 6a7 and measure the sg voltage. If it goes up significantly then substitute the tube.
Terry
Your screen voltage for the mixer and if amp is too low. Check #64 too high in resistance, 79 too low in resistance,and 68 leaky or shorted.
If values are ok then pull 78 and check sg voltage then pull the 6a7 and measure the sg voltage. If it goes up significantly then substitute the tube.
Terry
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