Re: Shaftesbury 519 amplifier
I can see seven wires there. Two purple wires for the primary, two green wires for the LT secondary and two red wires and a white wire for the HT secondary (centre tapped). If this is correct there are no voltage taps on the primary.
The 7.5V measured at the heater terminals will drop when the valves are inserted.
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Graham. Forum Moderator
Reach for your meter before you reach for your soldering iron.
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