Unusual Hiwatt Amps
The Hiwatt CP103Here's some rare shots of Pete Townshend's old CP103 amps. The CP103 was based on the old Mark I Sound City amps that Pete originally used.
Pictures courtesy of Paul T.
Pictures courtesy of Sönke
Pictures courtesy of Vincent D.
Here is a very unusual Hiwatt DR103S. The "Switch" input along with the Balance control allows you to cut the volume via footswitch, sort of a "reverse boost."
The input jack is normally closed, so if nothing is plugged in, it's in "quieter" mode by default, and the Balance control just acts as another volume.
When you plug in a footswitch, it toggles back and forth between this "quiet" mode (volume set by the Balance control, same as no footswitch) and "loud" mode (basically full tilt, beyond what is available in the other mode even at max Balance).
In other words, you need a footswitch (or at least a plain phone jack) to enable the louder mode.
Pictures courtesy of Mike L. (aka dylumph)
From the owner: "Apparently, the amp is based on a similar circuit to the amps made for Dave Gilmour. It has GEC KT88's, it has a very big bandwidth clean tone but can be made to distort at the front end to blistering levels. It weighs a lot, by the way."
Pictures courtesy of Roy (aka zen.state)
Pictures courtesy of Josef D.
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