John knows these amplifiers well and explained that the previous bodged repairs from others were never going to work properly. He completely rebuilt the input stages of the amp with quality components which he matched for performance and added heat sinks to keep the high running temperature down. Then he completely checked and adjusted the entire machine. This was a sizeable undertaking but worth the cost IMHO. The amp has performed faultlessly since. Just like new. Thanks John.
David Slovick