|
THD YELLOW JACKETŪ
CONVERTERS |
Yellow JacketŪ Converters are a type of
specialized adapter which permit the use of EL84/6BQ5 power tubes in
place of 6V6, 6L6, EL34 and 7591 types.
They give you a simple class-A operation from any amp. They not
only rearrange the pin locations of the tubes, but also provide
necessary current limiting on the screens and cathodes as well as
blocking the amplifier's grid bias voltage, while configuring the EL84
in a Class-A, self-adjusting cathode-bias circuit.
In other words, there are no adjustments to make and no modifications
necessary. You simply plug the Yellow JacketŪ Converter into the
amp's output tube sockets, (in cathode-bias amplifiers) screw the ground
wires under one of the output tube socket mounting screws, plug in your
EL84 (not provided), turn on the amp and
enjoy.
NOS or USED 6BQ5/EL84 tubes are
available as a separate item. See below.
NOTE: Yellow Jackets Converters are not
always yellow as shown. Stock varies between yellow, black and
red.
|
|
Part
Number
|
DESCRIPTION |
THUMBNAIL PHOTO
(click for more information) |
PRICE
EACH
|
| T-YJC |
-
Converts most audio
amplifiers with 6L6, EL34, 6550 or 6V6 tubes to EL84/6BQ5
tubes without modification or rebiasing.
-
Converts from
Class-AB to Class-A operation.
-
Drops output power by
50% to 70%.
-
Safe for all common
amplifiers and transformers.
-
Connects to
chassis-ground for cathode biased amps.
-
EL84/6BQ5 tube not
included but is available separately.
|
 |
$29.00 |
| T-YJS |
-
Converts most audio
amplifiers with 6L6, EL34, 6550 or 6V6 tubes to EL84/6BQ5
tubes without modification or rebiasing.
-
Converts from
Class-AB to Class-A operation.
-
Drops output power by
50% to 70%.
-
Safe for all common
amplifiers and transformers.
-
EL84/6BQ5 tube not
included but is available separately.
|
 |
$29.00 |
| T-YJ20 |
-
Converts most audio
amplifiers with 6V6 and similar-based tubes to EL84/6BQ5 tubes
without modification or rebiasing.
-
Converts from
Class-AB to Class-A operation.
-
Keeps output power
the same as the 6V6 tubes were.
-
Safe for all common
amplifiers and transformers.
-
EL84/6BQ5 tube not
included but is available separately.
|
 |
$29.00 |
| T-YJ7591 |
-
Converts most audio
amplifiers with 7591 and similar-based tubes to EL84/6BQ5 tubes
without modification or rebiasing.
-
Converts from
Class-AB to Class-A operation.
-
Slight power
reduction from 7591.
-
Safe for all common
amplifiers and transformers.
-
EL84/6BQ5 tube not
included but is available separately.
|
 |
$29.00 |
| T-6BQ5-N |
NOS 6BQ5/EL84 Tube
|
|
$19.00 |
| T-6BQ5-U |
USED 6BQ5/EL84 Tube
|
|
$9.50 |