These started life in the mid 1960's as a pair of
valve amplifiers housed inside a wooden case,
complete with a full sized reel to reel tape
recorder transport. These came to me in a box with
many other parts, all intended to be rebuilt and
made into a full integrated valve amplifier.
This turned into easily one of the
most complex projects I've ever undertaken, not so
much the basic design part but actually getting
everything put together and making it all work well
together. The task of designing and planning
everything and then needing to alter parts of the
design on the fly was huge, a real lesson in
actually working out how to build a product and do
it well.
Because of the huge size of the
project, I've divided it into 5 sections, click on
one to view the page:
Part 1: The design
Part 2: Rebuilding the amplifiers
Part 3: Designing the extra circuits
Part 4: Putting everything together
Part 5: Reflection
