CHAMP ELECTRONICS -" THE VINTAGE VALVE
AMP HOSPITAL"
NOTTINGHAM, ENGLAND
SERVICING OF A HIWATT CUSTOM 100
(DR103)
AMPLIFIER HEAD
I have done
quite a few of the Custom 100 (DR103) heads and the good news is that
they are usually about 98% OK!! These are built like a “brick
s**t-house", or a tank! The wiring is always immaculate and laced too.
These are actually one of my favourite amps from the
era……..you can never go far wrong with one of
these! The only slight let-down is that they seem to suffer (like many
other amps of the period too) from the swelling of the main smoothing
caps with age. Change these (if need be) and a quick spray of all the
controls & tube bases will almost certainly bring one of these
back to perfect life! Lovely old reliable amps!
Notice
how both transformers are “slightly bent-upright” towards
the centre of the chassis! This would suggest the dropping of this
amp….upside-down at some point in its life? Nevertheless, it
didn’t stop it from working and being a great amp!
Underside, right-hand (viewed from the back).
Underside, centre (viewed from the back).
Underside, left-hand (viewed from the back).
Underside, rear right-hand (viewed from the front).
Underside, rear left-hand (viewed from the front).
A brilliant old tube (valve) amp!
