JohnWilliams
New Member
Here are some pictures of the restoration that I did on my MC225.
I put all power supply components on a single turret board that replaces the original bias supply board. It fits by turning the original can capacitor clips 90 degrees. This way, no permanent mechanical modifications have been made -- the old components could easily be put back in to restore the amp back to its original factory configuration. The two remaining can capacitors (voltage doubler) and associated bumble bee are no longer connected in the circuit. Those have been functionally replaced by new components on the turret board.
I put all power supply components on a single turret board that replaces the original bias supply board. It fits by turning the original can capacitor clips 90 degrees. This way, no permanent mechanical modifications have been made -- the old components could easily be put back in to restore the amp back to its original factory configuration. The two remaining can capacitors (voltage doubler) and associated bumble bee are no longer connected in the circuit. Those have been functionally replaced by new components on the turret board.
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