[quote author="kubi"][quote author="analag"]If you parallel the GR tubes, thumping becomes less of an issue. And if you drive the cathodes with constant voltage, thumping can be further reduced.[/quote]
Paralleling the tubes is a good move, but locking the cathodes at a constant voltage (e.g. with the help of a cap) will increase distortion as you suppress the positive feedback to the cathode.[/quote]
Locking the cathodes with a pnp transistor.
analag
Paralleling the tubes is a good move, but locking the cathodes at a constant voltage (e.g. with the help of a cap) will increase distortion as you suppress the positive feedback to the cathode.[/quote]
Locking the cathodes with a pnp transistor.
analag
