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Big Dynaco find! (kinda epic)

AdamAnt316

Collector of heavy things
Subscriber
Hello everyone. I've been running solid-state in my main system for a few years now, but I used to use a Dynaco ST-70, Dynaco PAS-2, and Fisher FM-50B in my main system. I now use the Dynaco ST-70 in my office system, but using a Superphon Revelation as a preamp.

Anyway, I attended a local antique radio swap-meet this past weekend, watching one of the entrance doors before the show opened to the public. Once the gates opened, it took a few minutes to find someone to take over for me so that I could start looking around. Once I did, I got about two or three rows in before I got to a table where I saw a familiar-looking tube cage.

I quickly realized that it was a Dynaco Mark III, and asked the lady behind the table about it. She said that her husband was still unloading stuff from the car, so I'd have to wait until he got back so that he could take offers. I was planning to offer $300, regardless of whether there was another Mark III around there or not, but figured I'd see what he wanted for them. I actually looked around at the next row of tables before coming back around to the table with the Mark III, just as the seller was coming back.

When I asked him about the Mark III, he then proceeded to point out the other Mark III (sitting behind a stack of test equipment), as well as a ST-35 which I hadn't seen (hidden underneath another piece of test equipment). I could feel the sharks start to circle behind me as I asked him what he was looking to get. He started to rattle off some numbers which seemed low, so for clarification, I asked him what he wanted for all three amps. His response was...........

$60! :jawdrop:

As I was getting out my wallet, one of the onlookers yelled "I'll double your money!" Fortunately, the seller disregarded him, and the transaction went smoothly. It was then that the rush to get the amps to the car started. As I was hauling the first Mark III to my car, one of the guys who'd been watching the deal go down offered me $200. I said I'd consider his offer, and then continued the mad dash to get the stuff safely into my car. Once I was finally done, I took my place back at the entrance door, with a wide grin on my face. :D

Anyway, here are the pics so I can prove that it happened:

markiii_1.jpg


st35_1.jpg


I'm planning to replace the molded-paper capacitors, as well as the bias supply components, before I apply power to them. The ST-35 has some small greenish capacitors on it's boards which don't look like the 'black beauty' capacitors I've seen in other Dynaco tube gear; are these still molded-paper, or are they something less likely to have gone leaky? Thanks in advance!
-Adam
 
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Haha. My heart sunk in my chest when you mentioned the sharks! That kind of stuff gives me anxiety. Congrats on the "find of the year".
 
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Epic indeed, if you feel guilty, I'll be glad to give you $65:D Good karma there and a good eye, congrats!:yes:
 
Very nice find! What tubes came along with the amps?

The older Mark III (brown tube cage) has RCA 6550s, with metal bases. The newer one (black tube cage) has what appear to be Dynaco-branded 6550s (very little legible writing on them) which look identical to the RCAs in the older one. The ST-35 has RCA 6BQ5/EL84s.

Epic indeed, if you feel guilty, I'll be glad to give you $65:D Good karma there and a good eye, congrats!:yes:

I'm still not quite sure how I managed to pull this off. I did some fretting over whether I should've given the guy another $100 or so, but figured it was better that I got to them rather than someone likely to just throw them up on eBay. I will definitely take good care of these amps. :yes:
-Adam
 
Wish that when I ran into a similar situation the seller was more like yours...he had some Fisher gear, including a pair of 50A's. They're not sold yet, and I would certainly like another run at them.
cheers,
Douglas
 
That is a great story congrats. I always say to my wife when we are out looking for vintage furniture and stuff that timing is everything. Sometimes the stars line up and it all works out and you are glad you did not stop for that egg mcmuffin. LOL Great find.
 
I'm planning to replace the molded-paper capacitors, as well as the bias supply components, before I apply power to them. The ST-35 has some small greenish capacitors on it's boards which don't look like the 'black beauty' capacitors I've seen in other Dynaco tube gear; are these still molded-paper, or are they something less likely to have gone leaky? Thanks in advance!
-Adam

Hi Adam, I am not 100% sure what type of capacitors those green ones are but I am pretty sure they are not molded paper or electrolytic. I think they are polypropylene caps.

I have an SCA-35 and they used the same green caps in it. I replaced all of them with Orange Drops and they sound excellent.

btw Nice Find!!!
 
Thanks for all the comments, guys! :) I have recapped the ST-35 (at least as far as the boards go), and will hopefully be powering it up sometime tonight.

He must have been using the 1967 price guide, you stole those!!!

Actually, according to the price lists I've found, $60 wouldn't have been quite enough for even a ST-35 in 1967. These are more like 1980s prices, when Dynaco had gone belly-up, and most people didn't want this stuff anymore.

That is a great story congrats. I always say to my wife when we are out looking for vintage furniture and stuff that timing is everything. Sometimes the stars line up and it all works out and you are glad you did not stop for that egg mcmuffin. LOL Great find.

As I'm fond of saying, "You never know what you will find where." I figured I'd see some Dynaco tube equipment there, but for prices far beyond what I can afford. Oddly, I don't think I saw any other Dynaco gear there, mostly McIntosh (which should give you an idea of what the prices are usually like at this show!) :para:

Anyway, In my case, I didn't stop for a turntable. A JVC QL-7, or somesuch. Saw it on a table, asked the seller a question, then someone else muscled their way in on it, so I stepped aside and moved on. Would've been nice to have the TT, but I think I can live with myself. ;)
-Adam
 
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