This tube is testing at about 82% of the NOS average for this tube type. This tube was fully tested. It’s free of any leaks, shorts, and quality/emissions issues.
Item Tag: Audio Research
Audio Research D-115 Power Amplifier
Do not use amplifier with cage in place without forced air cooling. This amplifier is failure prone due to excessive heat build-up. Wires from the capacitors have been replaced with gold plated bussbar.
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Audio Research Model M-100 Power Amplifier Owner’s Manual Original OEM
OEM manual. Not sure whether page 12 is missing or not. Any defects I notice will be captured in the pictures or explained below.