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Re: Replacement diodes [message #23142 is a reply to message #23130] Thu, 18 June 2015 19:37 Go to previous messageGo to previous message
stevem is currently offline  stevem
Messages: 4744
Registered: June 2004
Location: NY
Senior Member
And all the other Thomas Vox amps that have a duel rail power supply.
Last winter on a boring cold day I go the itch to change my Vox reverb twin over to silicon type outputs from Germinum type for better life, which ment having to rebias them for more idle current to turn them on.
After jerking around with resistor values for one hour I got it set only find that the better specs of the new transistors made for 2 more watts of peak power, but less clean RMS power due to the greater idle current draw!
No such thing as a free lunch yet!
Anyway, I reinstalled the original transistors and let it be, they lived since 1966 in the amp with its 18 watts of clean power and will likely last after my Soul has left this rock!

[Updated on: Thu, 18 June 2015 19:38]

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