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Old 8th Jul 2019, 9:30 am   #15
Michael Maurice
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Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,219
Default Re: Hacker GP42 and AL42 restoration help

Whenever I service these amplifiers, I replace the following on sight before powering up:

The two 220K anode load resistors on the top tag strip.

The two 820K and 1M resistor around the valve holders.

The two 2K2 and 220R resistors on the bottom tag strip.

The for 47uF capacitors on the bottom tag strip

The two mustard capacitors are almost always OK.
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