Clearance Items

Yellow Jackets Tube Converters

Yellow Jackets® tube converters allow EL84 power tubes to be used in place of the most common guitar amp power tubes, including 6L6, EL34, 6V6, 7027, 6550, and 7591. Most Yellow Jackets® provide a substantial output power reduction and a "self-bias" Class A configuration for the EL84 so that no bias adjustment is required. Yellow Jackets® are like getting a whole new amp.
P-YJ7591 Tube Converter - Yellow Jackets®, YJ7591
The YJ7591 is a specialized, current-limiting/voltage-conditioning adapter for use in most amplifiers that use 7591 output tubes. Only the triode version will provide a noticeable power reduction. The ground wire connects to chassis-ground for cathode-biased amplifiers. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $40.46
Save 10%
Originally: $44.95
P-YJ7591-T Tube Converter - Yellow Jackets®, YJ7591, Triode version
The YJ7591 is a specialized, current-limiting/voltage-conditioning adapter for use in most amplifiers that use 7591 output tubes. Only the triode version will provide a noticeable power reduction. The ground wire connects to chassis-ground for cathode-biased amplifiers. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $40.46
Save 10%
Originally: $44.95
Don't see what you're looking for? Send us your product suggestions!