chunger said:Hotsen said:Hi guys,
I got some trouble:
In the final step, (with the mic plugged) I already got a 6.30V heater, but I cannot raise down B+ less than 150V (min trim) and bias less than +2,3V.
All the steps where good before this final one...
I got an electro harmonix 6072a/12ay7 tube
An ami T14 transformator
An Rk12 capsule
The v1.1a revision
And a 1uf c12 cap in the mic
I am from france, so my power supply is configured on 230v!
So did I need to got the same values than u?
Best
Jeremy
If all parts of the circuit are functioning properly, increase the value of the R1, R2 resistors to drop the B+ voltage.
Hi Chunger!
Thx for your answer!
A last question:
I am european, had the values needed on B+ and Bias still 120V and -1V?
Sorry I am pretty newbie...
Cheers