Hi Bossman: The prices for anything vintage audio have gone into the stratospheric sillyness. So you might keep in mind other options if you are anxious to get started:
* T- amps: If I were starting again, this is where I'd go. High-end mavens like the guys over at TNT Audio went bananas over the first T-amps. And you could buy the first ones for less than a good dinner! For the money nothing beats them according to the initiated — in fact, anything even logarithmically more costly may not sound as good. Relatively new chips have made this possible. With your experience, you should be able to build one, and by now there must be kits. Boards have been available for some time.
AK has a forum dedicated to chip amps. Also, DIY Audio, and DIY Paradise are involved with these. And, Audio Asylum probably has a forum for this by now. You need pretty efficient speakers. Even my Tannoys might be a challenge. You need something like the Fostex drivers that are used S.E.T. tube amp people.
* NEW renditions of the classic tube amp: there are a number of companies producing slightly updated versions of the old Dynaco tube kits. Other companies produce very modified versions. The classic rendition of the ST-70 includes a power X-former with more capacity that spares a lot of strain on the amp as a whole. The outputs are machine wound versions of the great classics of decades past. The ST-70 is one of the most famous and arguably one of the most revered amps ever produced. Check it out. When it is finished — the kit I mean — you will have a NEW amp. There is also the less powerful ST-35. Over at DIY Audio, they had a big project going on for a couple of years in which they scratch built ST-35 clones! Audio Asylum hosts the sponsored 'Dynaco Forum'. There is at least a decade of archived stuff there that should answer any sort of question that may come up. And the Dyna community is very cool.
BIKES ARE HEALTHY BUT AUDIO ....
I have a drawer full of new and NOS tubes, as well as an ST-70 that I bought from a friend in 1988. It is about 2/3rds restored and I should finish it. But recently, I've been too busy learning how to restore bikes. Which is a good thing. Before I suffered a leg injury that has had me off my machines for months, my blood pressure was down. It is now 134/90 .... it WAS 110/72 at 72 bpm — not bad for an old fart! Bikes may be healthier, but audio sure is fun!
And BTW — my Dyna is being restored as 'old school'.
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