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Hi David
Thanks for your help.
They are revision F units. I was told that the attack and release pots have been disabled and replaced with resistors and that a high frequency emphasis mod has been done to them. One looks like it has the hi freq mod with a bypass switch on the back of the chassis, the other one does not apear to have similar changes, bypasable or otherwise.
One has a smoked resistor -R84, with lots of heat signs on the board.
There is a jumper wire from the full clockwise position of the release pot to the fcw position of the attack pot.
There is a 276K resistor across the center to the fcc connector of the release pot on one unit. The other one has the same value resistor across the fcw fccw of the release pot.????
On one attack pot the centre to full clockwise tabs are jumped with a resistor and cap in parallel. On the other the same thing but between the ccw/ cw connectors.????
I know this is a prety primative description and the spelling is lousy but I hope there is enough information for you to make sence of things.
cheers
Roly
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