[NJARC] Restored Dynaco ST-70 for sale

[John Ruccolo]

Hi Sal,

In the famous words of Jack Benny: I'm THINKING about it! ;-)

On another note, I spent a chunk of club money at Rochester with Bob's Antique Electroic Supply, on electrolytic capacitors with AXIAL leads!

"Axial" means one lead comes out each end; "Radial" leads are the ones where both leads come out one end. Radial lead caps are much cheaper for some reason. Radials are good for rebuilding filter cans, and are usually fine for most other applications, because they're some much smaller than the original caps. But in certain situations, an axial cap just fits better and is easier to install. That's why I got them.

I identified myself as the NJARC Capacitor Man, and the club received a very generous club discount (about 20%) from Bob. He's a good man -- I (we) will be ordering from him again. He takes PayPal, which will make it easy. I had been wanting to order caps from him for years, but out of habit kept going to Mouser.

Got the following: 100UF, 47UF, 33UF, 22UF and 10UF all at 450V.


Regards,

John (Cap Man)

--- On Sat, 8/29/09, salb203 at aol.com <salb203 at aol.com> wrote:

> From: salb203 at aol.com <salb203 at aol.com>
> Subject: [NJARC] Restored Dynaco ST-70 for sale
> To: njarc at mailman.qth.net
> Date: Saturday, August 29, 2009, 2:06 PM
> Just remember 
> Reply = Poster
> Reply All = Everyone
> 
> _________________________________________________________
> I rebuilt this Dynaco ST-70 a few months back for a
> customer and it 
> developed a static/cracking noise (like the dreaded silver
> mica 
> disease) on the left channel. My customer decided tube amps
> is not for 
> him and wants to sell it. I told him to send it back to me
> and I will 
> sell it for him after I fix it. One of the 82pf capacitors
> I installed 
> failed after 2 months. I replaced it and it is quiet and
> noise free.
> 
> Price is $425 firm, it needs nothing, every capacitor
> including the 
> quad electrolytic can, was replaced. The bias selenium
> rectifier was 
> replaced with a silicone diode and the RCA jacks were
> upgraded with 
> gold jacks. The cage is almost flawless. The chassis has
> the usual 
> pitting here and there and some scratches on the top. It
> will come with 
> a new quad of Electro-Harmonix EL34's and a new Sovtek
> 5AR4.
> 
> It comes with a 6 month warranty not including tubes or
> transformers.
> 
> Pictures are at http://www.tuberadios.com/temp/chuckst70trio.jpg
> 
> I can bring it to the September meeting. Here is your
> chance to get 
> into tube audio... its in the rage now... :-)
> 
> Regards,
> Sal Brisindi
> 
> PS: John R... I think you need another one or buy this one
> and sell 
> yours.... :-)
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