Do Rectifier Tubes Affect Sound?

rectifier tubes don't really affect “tone” directly, like power and (especially) preamp tubes do. they're not in the audio signal path and only affect the sound of the amp in a roundabout way. in the case of guitar amps, a rectifier's only job is to convert AC voltage to DC voltage.

What does a bad rectifier tube sound like?

Preamp tubes usually cause problems through noise or microphonics. If noise, you will hear hiss, crackling, popping or similar issues. If you hear squeal, hum or feedback, it is typically a microphonic tube. ... You can try tapping the tubes like you did the power tubes and see if the problem worsens.

Are rectifier tubes important?

The function of the Rectifier Tube in a guitar amplifier is to convert AC voltage from your power source to the DC current used in the internal operation of the amp's circuitry. ... The overall response is 'spongier' and causes the strings of your guitar to feel more elastic and often easier and 'more juicy' to play.