|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
84.28.51.211
In Reply to: RE: Sherwood S-5000 output-transformers posted by Eli Duttman on April 29, 2016 at 12:36:08
Hi Eli,
Thanks for your reply.
You are right that these output transformers are suitable for more tubes than the 7189.
That is exactly the reason for my questions about these transformers, because I don't have 7189 tubes and since these are not easy to find.
So it is not my intention to build a Sherwood S-5000 circuit, but something else.
I will look at the 'El Cheapo'.
Best regards,
Tubecase
Follow Ups:
The only real electrical difference between the 6V6 and the 'AQ5 shown in the schematic is g2 toughness. The screen grid in a 6V6 is tougher than that in an 'AQ5.
You have stated that you have 6V6s. Build with them and reduce the g2 "safety" resistors to 100 Ω. In order to use the low grade O/P "iron" the schematic shows, triode wiring was essential. You have terrific "iron" and can build with UL/triode mode switches. Also, your superior O/P trafos allow the I/P high pass filter to "corner" slightly below 20 Hz.
A full set of power magnetics can be ordered from Allied Electronics. I'll provide stock #s, if you ask.
BTW, the current production "reissue" TungSol 6V6 is excellent. You would be good to go for many years to come.
Eli D.
Hi Eli,
Thanks for the schematic.
Although I can not build everything, I do like to study on schematics because I can learn of it.
Best regards,
Kees.
6P14P-EV (left), Amprex Bugle Boy 7189 (right).
The 7189 can still be found, but they'll cost you.
I have two matched quads of vintage 7189s' for my Sherwood S-5000, as well as a matched quad of 6P14P-EV Russian tubes from Jim McShane of McShane Design.
In all honesty the Russian tubes are just as good if not better, and for around $85 per quad you can't beat 'em.
I see by the number of posts that your new here. Since Mikey is too humble to say it I will - What Mike Samra says is gospel when it comes to vintage tube gear.
Meat; It's the right thing to do. Romans 14:2
Hello Geezerrocket,
Thanks, it's good to know that the 6P14P-EV Russian tubes are really good replacements for the 7189's.
Best regards,
Kees.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: