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Spotted on eBay - Pair of Restored Heathkit W4-AM PP6L6 amps

Posted: August 10th, 2021, 8:36 am
by David McGown

Re: Spotted on eBay - Pair of Restored Heathkit W4-AM PP6L6

Posted: August 10th, 2021, 10:29 pm
by Grover Gardner
Those are nicely restored. For those who don't follow Dave Gillespie's Audiokarma threads, he has vastly improved the performance of a series of Heathkit amplifiers. While not the crown jewel of the Heathkit W series, the W4s are lovely 20wpc Williamsons. If you think SET is the be-all, you should hear a well-tuned Williamson. :-) Gillespie made some subtle changes, and installed a multi-tap feedback network to ensure smooth performance and stability on all taps. I myself have rebuilt a pair of W4s to his specs and they're mighty close to my Peerless Williamsons, for a fraction of the price. For $600 and local pickup, these are a steal, IMO. Install some premium NOS 6SN7s and a quad of Gold Lion KT66s and you have some really beautiful amps.