Yellow Jackets Tube Converters

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Yellow 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.

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Tube Converter - Yellow Jackets®, YJS, Converter Only

Converter-only version of the P-YJS now available for a limited time. Tubes not included. Requires an EL84 vacuum tube, such as:

T-EL84-EH (Electro-Harmonix)
T-EL84-GEN (Genalex)
T-EL84-JJ (JJ Electronic)
T-EL84-MUL (Mullard)
T-EL84-MP-PV (Peavey)
T-EL84-S-MP-GT (Groove Tubes)
T-EL84-SOVT (Sovtek)
T-EL84-TAD (Tube Amp Doctor)
T-EL84-TUNG (Tung-Sol)
T-EL84_6BQ5 (NOS)
T-EL844-JJ (JJ Electronic EL844)
T-EL84M-SOVT (Sovtek EL84M)

We also sell an EL84 sampler set containing 9 EL84 tubes:

T-EL84-SET

The YJS is a specialized, current-limiting/voltage-conditioning adapter for use in most 20 to 100 watt amps that use 6L6, EL34, 6550 or 6V6 output tubes. The YJS is for amps with fixed bias power tubes.

$37.⁵⁰

Tube Converter - Yellow Jackets®, YJShort, Converter Only

Converter-only version of the P-YJShort now available for a limited time. Tubes not included. Requires an EL84 vacuum tube, such as:

T-EL84-EH (Electro-Harmonix)
T-EL84-GEN (Genalex)
T-EL84-JJ (JJ Electronic)
T-EL84-MUL (Mullard)
T-EL84-MP-PV (Peavey)
T-EL84-S-MP-GT (Groove Tubes)
T-EL84-SOVT (Sovtek)
T-EL84-TAD (Tube Amp Doctor)
T-EL84-TUNG (Tung-Sol)
T-EL84_6BQ5 (NOS)
T-EL844-JJ (JJ Electronic EL844)
T-EL84M-SOVT (Sovtek EL84M)

We also sell an EL84 sampler set containing 9 EL84 tubes:

T-EL84-SET

The YJShort is shorter than the standard YJS converter, allowing for use in amps that do not have room for the standard converters.

$45.⁰⁰

Tube Converter - Yellow Jackets®, YJC, Converter Only

Converter-only version of the P-YJC now available for a limited time. Tubes not included. Requires an EL84 vacuum tube, such as:

T-EL84-EH (Electro-Harmonix)
T-EL84-GEN (Genalex)
T-EL84-JJ (JJ Electronic)
T-EL84-MUL (Mullard)
T-EL84-MP-PV (Peavey)
T-EL84-S-MP-GT (Groove Tubes)
T-EL84-SOVT (Sovtek)
T-EL84-TAD (Tube Amp Doctor)
T-EL84-TUNG (Tung-Sol)
T-EL84_6BQ5 (NOS)
T-EL844-JJ (JJ Electronic EL844)
T-EL84M-SOVT (Sovtek EL84M)

We also sell an EL84 sampler set containing 9 EL84 tubes:

T-EL84-SET

The YJC is similar to the YJS, but for use in amps with cathode-biased power tubes. Cathode-biased power tubes have a bias resistor connected from their cathode to ground.

$37.⁵⁰

Tube Converter - Yellow Jackets®, YJUni, Triode Version, Converter Only

Converter-only version of the P-YJUNI-T now available for a limited time. Tubes not included. Requires an EL84 vacuum tube, such as:

T-EL84-EH (Electro-Harmonix)
T-EL84-GEN (Genalex)
T-EL84-JJ (JJ Electronic)
T-EL84-MUL (Mullard)
T-EL84-MP-PV (Peavey)
T-EL84-S-MP-GT (Groove Tubes)
T-EL84-SOVT (Sovtek)
T-EL84-TAD (Tube Amp Doctor)
T-EL84-TUNG (Tung-Sol)
T-EL84_6BQ5 (NOS)
T-EL844-JJ (JJ Electronic EL844)
T-EL84M-SOVT (Sovtek EL84M)

We also sell an EL84 sampler set containing 9 EL84 tubes:

T-EL84-SET

The YJUni is a simple pin-converting adapter for use in most amps with 6V6 or similar based tubes like 6F6, 6G6, 6K6, 6Y6, etc. The YJUni is shorter than standard Yellow Jackets®. It is designed for use in lower power output amps (20 watts or less) when no power reduction is desired.

$37.⁵⁰