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Old 31st Jul 2011, 12:44 pm   #4
bargoedboy
Retired Dormant Member
 
Join Date: Jul 2011
Location: Sherborne
Posts: 6
Default Re: circuit diagrams.

The amp in question is a bit more complicated than most.
Its a Little rock 50 made by White amps of sunderland back in late 70`s possibly early 80`s.
It has 4 EL84`s
and 4 ECC83`s and one ECC81 (12AT7) possibly the phase inverter or reverb driver.
As luck would have it one of the guys on here has been kind enough to take a look at amp for me, Mrthermionics as we only live about 5miles from each other.
But here is a couple of pics anyway.
http://i74.photobucket.com/albums/i2...dboy/rock2.jpg
this is where a resistor had burnt out and I was just about to replace it on Filter cap board.
I have since changed all the filter caps and small cap shown along with resistor.
http://i74.photobucket.com/albums/i2...dboy/Rock1.jpg
and this is the main board, I am a little worried regarding solid wires being used as i would have thought Vibration in a loud amp may cause dry joints.
Thanks all.
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