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.
Converter-only version of the P-YJS. Tubes not included. Requires an EL84 vacuum tube, such as:
We also sell an EL84 sampler set containing 9 EL84 tubes:
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.
- 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
Converter-only version of the P-YJC. Tubes not included. Requires an EL84 vacuum tube, such as:
We also sell an EL84 sampler set containing 9 EL84 tubes:
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.
- 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
Converter-only version of the P-YJShort. Tubes not included. Requires an EL84 vacuum tube, such as:
We also sell an EL84 sampler set containing 9 EL84 tubes:
The YJShort is shorter than the standard YJS converter, allowing for use in amps that do not have room for the standard converters.
- 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
Converter-only version of the P-YJSHORT-T. Tubes not included. Requires an EL84 vacuum tube.
$45.00
Converter-only version of the P-YJUNI-T. Tubes not included. Requires an EL84 vacuum tube, such as:
We also sell an EL84 sampler set containing 9 EL84 tubes:
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.
- 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
Converter-only version of the P-YJS-T. Tubes not included. Requires an EL84 vacuum tube, such as:
We also sell an EL84 sampler set containing 9 EL84 tubes:
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.
- 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
This Yellow Jacket converter is a specialized adapter which permits the use of EL84/6BQ5 power tubes in place of 7591A type tubes. Yellow Jacket converters not only re-arrange the pin locations of the tubes but also provide the necessary current limiting on the screens and cathode. Yellow Jacketss block the amplifier's grid bias voltage, which configures the EL84/6BQ5 into a class A self adjusting bias circuit. Tubes are not included. Manufacturer recommends the JJ EL84/6BQ5.
$37.50
Converter-only version of the P-YJUNI. Tubes not included. Requires an EL84 vacuum tube, such as:
We also sell an EL84 sampler set containing 9 EL84 tubes:
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.
- 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
The YJ20 is for use in most amplifiers using 6V6 output tubes. The YJ20 is similar to the YJC but does not drop the plate and screen voltages. It is meant for use in lower power output amps (20 watts or less) when no power reduction is desired. The ground wire connects to the chassis-ground for cathode-biased amplifiers. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $44.95
The YJ20 is for use in most amplifiers using 6V6 output tubes. The YJ20 is similar to the YJC but does not drop the plate and screen voltages. It is meant for use in lower power output amps (20 watts or less) when no power reduction is desired. The ground wire connects to the chassis-ground for cathode-biased amplifiers. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $89.89
Package of 2
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 $38.21
Save 15%
Originally: $44.95
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 $76.41
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. The ground wire of the YJC is used to bypass the amp’s cathode bias components so the Yellow Jacket® converter’s internal bias components are used instead. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $44.95
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. The ground wire of the YJC is used to bypass the amp’s cathode bias components so the Yellow Jacket® converter’s internal bias components are used instead. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $89.89
The new Yellow Jackets NOS (New Old Stock) Tube Converter is a limited edition converter made for use in most amplifiers under 100 watts and using 6L6, EL34, 7027, or 6V6 output tubes. The converter lowers the overall power in your amplifier and gives your amp a unique vintage tone.
Starting at $133.50
The YJR is a direct plug-in replacement adapter for use in most amplifiers that use 5AR4/GZ34, 5U4, 5Y3 or similar full-wave rectifier tubes. The YJR converts your amp's vacuum tube rectifier to a solid state rectifier, reducing tube sag for a tighter sound and feel. The tube rectifier can easily be swapped back in when sag is desired. This Yellow Jacket® is a solid state device and as such does not come with vacuum tubes.
All Yellow Jackets® have a one year warranty against manufacturer defects.
- Converts most audio amplifiers which use a vacuum tube rectifier 5AR4/GZ34, 5U4 or 5Y3 to a solid state device.
- Safe for all common amplifiers and transformers.
All Yellow Jackets® have a one year warranty against manufacturer defects.
$14.95
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. (Fixed bias tubes have their cathode connected directly to ground and a negative DC voltage applied to their control grid). All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $44.95
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. (Fixed bias tubes have their cathode connected directly to ground and a negative DC voltage applied to their control grid). All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $44.95
The YJShort is shorter than the standard YJS converter, allowing for use in amps that do not have room for the standard converters. It is a specialized, current-limiting/voltage-conditioning adapter for use in most 20 to 100 watt amps which use 6L6, EL34, 6550 or 6V6 output tubes. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $54.59
The YJShort is shorter than the standard YJS converter, allowing for use in amps that do not have room for the standard converters. It is a specialized, current-limiting/voltage-conditioning adapter for use in most 20 to 100 watt amps which use 6L6, EL34, 6550 or 6V6 output tubes. All Yellow Jackets® converters come with JJ Brand EL84/6BQ5 vacuum tubes.
Starting at $54.59
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.
Starting at $38.50
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.
Starting at $38.50