My guess is that your tubes are not too strong. No amp manufacturer would offer an amp that could not handle strong tubes. More likely is that there is some sort of failure in the bias circuit, perhaps some resistor values in the bias network that have drifted off value.
Tube amp biasing question---
hello all,
just wondering, my amp, a Jc Verdier Audiobloc II has to be manually biased to 18v Dc.
at the MINIMUM range of the bias pot, I still get approx 18.9v DC, at the top range of the Bias pot, i can get almost 26v dc.
my tubes are all tested in the good range.
my question....could it be my tubes are too strong?
would swapping in some weaker tubes (aged tubes) allow me to lower the bias point to reach 18v dc?
just wondering, my amp, a Jc Verdier Audiobloc II has to be manually biased to 18v Dc.
at the MINIMUM range of the bias pot, I still get approx 18.9v DC, at the top range of the Bias pot, i can get almost 26v dc.
my tubes are all tested in the good range.
my question....could it be my tubes are too strong?
would swapping in some weaker tubes (aged tubes) allow me to lower the bias point to reach 18v dc?
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