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11-18-2022, 07:58 PM
Hi All,
New guy here.
I'm just testing a TUT3 Portaflex.
I've built some simple valve pre-amps and done some repair work on valve amps previously.
The Portaflex build went well (I'll post some pictures) and it sounds very good. Loud, dead quiet, as well.
I have two questions,
1) The preamp seems to have quite high gain. Putting the volume above 2 starts to get pleasant fat distortion. Seems a little early. Any advice?
2) What sort of voltages should I be testing for in the circuit? Most of the published Ampeg Portaflex schematics have voltages indicated at the relevant points.
Woo Hoo!
Evan
New guy here.
I'm just testing a TUT3 Portaflex.
I've built some simple valve pre-amps and done some repair work on valve amps previously.
The Portaflex build went well (I'll post some pictures) and it sounds very good. Loud, dead quiet, as well.
I have two questions,
1) The preamp seems to have quite high gain. Putting the volume above 2 starts to get pleasant fat distortion. Seems a little early. Any advice?
2) What sort of voltages should I be testing for in the circuit? Most of the published Ampeg Portaflex schematics have voltages indicated at the relevant points.
Woo Hoo!
Evan
