|
Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
|
|
|
Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
|
In Reply to: This looks like the place to be for Sherwood owners posted by Bamboo Pentagon on April 19, 2015 at 18:28:18:
The 7199 has gone the way of the Dodo; it's extinct. The best substitute (with rewired sockets) is the 6GH8, but that type is out of production and supplies are dwindling. AAMOF, all suitable pentode/triode types, like the 6U8 and 6BL8, are headed towards extinction too.I suggest you buy several sets of power section small signal tubes, while it's still possible. A 2 tube set does not have to be "matched", but should come from a single plant and a single production run. Even that low level of selectivity may be difficult to achieve, given the dwindling supply situation.
There is hope, for the time when suitable pentode/triode tubes cease to be available. The excellent EF86 small signal pentode is in production and fits 9 pin mini sockets. OK, the voltage amplifier is taken care of, but the "concertina" phase splitter remains. Adding an additional 9 pin socket to the very limited space is not particularly feasible. However, "sand" rides to the rescue. The ZVN0545A TO92 case MOSFET is space efficient and it makes a nice, highly transparent, DC coupled "concertina" phase splitter.
If you are going to own "vintage" tube equipment, some technical skills are necessary. If you lack such skills and are unwilling to acquire them, you'd better have a very, very, "healthy" bank balance.
edit: fixed "typo"
Eli D.
Edits: 04/20/15
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Attention all Sherwood S5000 Owners - Eli Duttman 11:51:00 04/20/15 (11)
- RE: and Dynaco, Scott , etc. - Crazy Dave 06:34:48 04/21/15 (2)
- RE: and Dynaco, Scott , etc. - Eli Duttman 10:03:59 04/21/15 (1)
- Thanks again! (nt) - Crazy Dave 07:52:09 04/22/15 (0)
- RE: Attention all Sherwood S5000 Owners - Bamboo Pentagon 12:39:41 04/20/15 (7)
- 7199's ......... - geezerrocket 17:41:36 04/20/15 (6)
- I tried those in a little Heathkit EL84 SE - ToddM 07:28:22 04/24/15 (0)
- Can you tell me where you obtained the socket adapters, if - alaskahiatt 17:17:28 04/23/15 (2)
- RE: Can you tell me where you obtained the socket adapters, if - geezerrocket 19:45:59 04/23/15 (1)
- Thanks very much. nt - alaskahiatt 22:14:29 04/23/15 (0)
- RE: 7199's ......... - Bamboo Pentagon 18:05:33 04/20/15 (1)
- RE: 7199's ......... - Eli Duttman 18:41:44 04/20/15 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
