24 Epiphone Valve Jr.•Mercury Upgrade Kit
ThisprojectanditsdocumentationistheresultoftechnicalinvestigationsmadebytheengineeringstaffofMercury Magnetics.Thedisclosureoftheinformationhereinmaypertaintoproprietaryrightsand
thefurnishingofthesedocumentsdoesnotconstituteanexpresedorimpliedlicensetousesuchmaterials.
BONUS!!!
Valve Junior – and while you’re at it, here’s
Alan Cyr’s 6V6 Option
AMercury Upgraded Valve Jr.
withAlan’s6V6optioninstalled.
Notetheadditionaltubesocket.
Here’sasimpleadditionalmodyoucanmaketoyourprojectampfromAlanCyr.Itaddsatubesocketthat
givesyoualotmoreexibilitywiththelittleamp’stone.
WhenwedebutedthemodattheLA Amp Show 2007wedemonstrateditwiththeEL84and6V6intandem
(youcanruneithertubeindependentlyoratthesametime)anditwastheclearfavoriteofallwhoattended.
Onthefollowingpagesaretheschematicsandaccompanyingphotostoshowyouhowtheadd-ontsinto
thecircuit.Tomakethemod,you’llhavetodrillanadditionalholeinthechassistosupportthenewtube
socket.
Theprovidedschematics,illustrationsandphotosshowthecompleteMercuryUpgrade,includingthe
partsneededtomakethe6V6option.
Enjoy!
Addedtubesocket
forthe6V6