Yellow Jackets Tube ConvertersYellow JacketsÂ® 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 JacketsÂ® provide a substantial output power reduction and a "self-bias" Class A configuration for the EL84 so that no bias adjustment is required. Yellow JacketsÂ® are like getting a whole new amp.
Yellow JacketsYellow Jackets allows amplifiers using common power tubes to use EL84s without modification or rebiasing.
Tube Converter - Yellow Jackets®, YJ7591
Package of 2The 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 $38.21