Re: Roberts RT7 - problem
Firstly, the explanation to why my reading of 0.00V on the base initially might well have been down to not making sufficient contact to the chassis with the probe. On the second attempt, I had to jiggle the tip into the metal and voila! Down to me I'm afraid.
Results:T2 primary measured on 20k Ohm range
TR7 - 0.01
TR6 - 1 .00 i.e. open circuit
T2 upper secondary
TR7 - 0.01
TR6 - 0.01
R30 code: Red Violet Brown Silver = .37 (20k Ohm range)
Voltage: T2 primary; chassis to emitters -
TR7 = 0V
TR6 = 0V
Upper secondary;
TR7 = 9.23V
TR6 = 9.23V
Meter check revealed a zero reading using the resistor connected as instructed.
Duff meter range?
Attached AC128's with tab by emitter.
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