Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: plexi50 on November 28, 2010, 09:14:47 pm

Title: Vibrolux Grid Resistors?
Post by: plexi50 on November 28, 2010, 09:14:47 pm

I have noticed that the original Vibrolux and the Reissue Vibrolux Custom both do not use power tube grid resistors

This in my opinion is a part of the Vibrolux tone

Are not the 1.5K grid resistors on Fender amps there to prevent or stabilize high frequency osscillations?

Title: Re: Vibrolux Grid Resistors?
Post by: FYL on November 29, 2010, 08:36:14 am

Proper grid stoppers have no effect on tone. They add a margin of stability and can curb some EMF-related problems.

Fender didn't use them for cost reasons, and also because the ether wasn't a polluted mess as it is today with all those wireless gizmos.

Title: Re: Vibrolux Grid Resistors?
Post by: plexi50 on November 29, 2010, 02:00:53 pm

Good to know the reason for them. Now i know (The Rest Of The Story) Paul Harvey. Good Day!