CHAMP ELECTRONICS -" THE VALVE AMP
HOSPITAL"
NOTTINGHAM, ENGLAND
SERVICING OF A RED BEAR LEAD TUBE Mk 60
AMPLIFIER HEAD
Not
a lot to say about this one really. They were manufactured in Russia,
and were very well built and very sturdy (as you would expect from the
Russians); not a bad amp overall. I believe they were distributed
world-wide by Gibson, who eventually dropped them because of a lack of
sales and interest?
I found and replaced just one dodgy cap.
Nice and tidy……well built too.
The pair of Sovtek 6L6’s were a bit under-par so I
replaced these with my usual choice of JJ 6L6’s. One worth-while
modification I did do though, was to rewire all the smaller
tubes’ heaters for the use of ECC83/12AX7 standard range of
tubes. These amps use the Russian 6N2P for all the pre-amp and drive.
This tube is the same as the ECC83 apart from pin 9 being an internal
screen whereas the ECC83’s pin 9 is a heater CT (centre tap). The
customer was pleased with this small mod as prior to this he was unable
to try different types/brands of tubes!
Job done!
