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    Building, troubleshooting and testing of these amplifiers should only be
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    the safety precautions around high voltages.

Brook 2A3 PP amp ID help

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I picked up a mono, compact amp, 1950's, labeled only as Brook High Quality Audio Amplifier. No model number tag. It is in visually good shape, considering all the capacitors mounted inside. It has a plastic brief case handle on the left side for portability. It doesn't appear to use interstage or input transformers, but is capacitor coupled. What I thought was an interstage xfmr looks to actually be an enclosed choke. It has 5 input channels and various phono compensation modes. I'm trying to attach a photo but I'm not sure it will go through.
 

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