Thread: Ts4d Motorola
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Old 03-29-2018, 01:02 PM
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jr_tech jr_tech is offline
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Quote:
Originally Posted by timmy View Post
.012 ac voltage at speaker no hz, grid on, grid off voltage is 1.662 ac at 60hz . No DC voltage grid on or off.
1.662 volts with the grid of the 25L6 disconnected? That's quite high! Was there anything at all connected to the grid pin? For example, just a short clip lead will pick up a significant amount of hum.

Do you measure the same voltage with different 25L6s?

jr
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