The following circuit diagrams
have been provided partly by visitors to this website, and also
courtesy of the now-defunct Obsolete
Electronics website. They are reproduced in good
faith, but with no guarantee of correctness. No responsibility can
therefore be taken for any problems arising out of the use of the
diagrams. The employment of an experienced electronics repairman is
strongly recommended when work on electrical equipment is being
undertaken.
Remember that there are very high,
and hence lethal,
voltages inside amplifiers!!