Re: Amplifier problem (record player)
Not making sense! unless coincidentally you incurred a fault, you say it worked ok before you changed the stylus, and you only get a weak “hum” when touching the control grid, and you have not measured the cathode voltage.
Let’s try to establish one thing at a time.
Measure the cathode voltage, previous posts have indicated what to expect.
If you get no voltage reading it would suggest amp fault.
Cheers
John
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