Rebuilding the EL84 SE Amplifier
It has been a couple of years since my
first DIY EL84 single ended amplifier
appeared on the web.
Since then the page access statistics revealed that the mayority of the keyword that
led people to the site was "el84", even infront of 2A3!
From this I derived that there must be a vivid interest for amplifiers using this
valve. I like this thought because I love the EL84 and so I decided to document
this project in more detail in the hope in may inspire some potential DIYers afraid
of mechanical work...
I had to partly dismantle the original EL84 SE amp because I wanted to use the TAMURA
OPTs for a more ambitious projec:
The 2A3 Single Ended Amplifier.
After that the original EL84 chassis and part of the circuit was re-used in an
for testing the 6P7S beam tetrode. From that I learned that the replacement OPTs could
deliver very nice sound as well and since I was not so happy with the finish of the first
amp and also desired to increase flexibility for circuit modications by adding a further tube socket,
I decided to rebuild the amplifier using these OPTs. The following pictures show what happened.
The EL84 SE Chassis
First I stripped down nearly everything and made a bigger cutout and designed a new layout.