- Works on most octal socket tube amps
- Small enough to carry in most guitar
- Requires no power source other than amp
it’s plugged into
- No expensive batteries to replace
- Can be used to “match” tubes into pairs
tubes need the BIAS KING™!
tubes age, their bias point will shift. By using the Bias King you can
maintain the sound you want by periodically adjusting the bias on your
amp. This will keep your tubes in top shape throughout their life and will
keep your amp sounding its best.
The Bias King is a simple, effective, and
accurate diagnostic tool designed to read the current flowing through the
tube of an amplifier (bias). The bias on an amplifier can be adjusted by a
technician to allow more or less current to flow. The more current there
is flowing, the higher the numbers will be on the Bias King and the hotter
the tubes will run. The tubes will also sound different depending on where
the bias is set.
Although the Bias King will not set the bias for you, you can use the
chart printed on the side of the Bias King to find out what range of
current flow is acceptable for the particular tube type you are using in
your amp. To keep your tubes in good shape and your sound consistent,
periodically checking the bias of your amp is extremely important.
The Bias King is a must have whether you're in a recording studio or on