sheltie dave
Addicted Member
This is one of the great unknown preamps from the 60s and 70s, with RGR and Sumo being a couple more examples. The Hadley is one of the best examples of how to copy a Marantz 7t, and at the same time clean it up and make maintenance as simple as possible. Hadley worked off and on at Marantz, and back in the day made his name for improving the 7t and the 8B with his design efforts. Not mine - I wouldn't be selling it.
http://www.ebay.com/itm/Hadley-621-...pt=Vintage_Electronics_R2&hash=item4cfda26477
http://www.ebay.com/itm/Hadley-621-...pt=Vintage_Electronics_R2&hash=item4cfda26477
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