24
Epiphone Valve Jr.
•
Mercury Upgrade Kit
This project and its documentation is the result of technical investigations made by the engineering staff of
Mercury Magnetics
. The disclosure of the information herein may pertain to proprietary rights and
the furnishing of these documents does not constitute an expresed or implied license to use such materials.
BONUS!!!
Valve Junior
– and while you’re at it, here’s
Alan Cyr’s 6V6 Option
A
Mercury
Upgraded
Valve Jr.
with Alan’s 6V6 option installed.
Note the additional tube socket.
Here’s a simple additional mod you can make to your project amp from Alan Cyr. It adds a tube socket that
gives you a lot more flexibility with the little amp’s tone.
When we debuted the mod at the
LA Amp Show 2007
we demonstrated it with the EL84 and 6V6 in tandem
(you can run either tube independently or at the same time) and it was the clear favorite of all who attended.
On the following pages are the schematics and accompanying photos to show you how the add-on fits into
the circuit. To make the mod, you’ll have to drill an additional hole in the chassis to support the new tube
socket.
The provided schematics, illustrations and photos show the complete
Mercury
Upgrade
, including the
parts needed to make the 6V6 option.
Enjoy!
Added tube socket
for the 6V6
Summary of Contents for Epiphone Valve Junior
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