Vintage Asylum

Sherwood S-8000 III help needed. How to bias? What should I do to this amp to make stable?

69.107.77.160

Mr Blue Sky

I just got a Sherwood S-8000 III tube receiver. It is working perfectly and dead quiet. However, I'm not sure how to bias it. I don't have any specs or information. There appear to be ports on the chassis for meter probes and I see the balance and bias pots...but I have no clue where to set it.

Also, in addition to the following...what do I need to do to this amp to make it stable for long term use?

A) Allowed amp to warm up, transformers and can caps not excessively hot. No hum, no strange noises....assuming caps are a-okay.

B) Bias amp(pending).

C) Clean all tube sockets, pots, and terminals with DeOxit.

D) Test all tubes.

E) Literature says that unit contains silicon rectifier, so no need to worry about time-bomb selenium units?

Help or advice would be appreciated. Thanks!

Follow Ups:

RE: Sherwood S-8000 III help needed. How to bias? What should I do to this amp to make stable? - Michael Samra 17:47:43 06/11/07 (2)
Blue
thats one nice receiver and I have the S8000 IV and a pair of s5000 and an s5500 and the 5000s and 8000s are some of the best sounding units ever made in receivers and integrateds.
The biggest issue I have found on the receivers are the terminal strips that are heat scorched should be changed..If they arent scorched and brittle,just leave them alone.I also change out the .068 or .1 coupling caps with a nice paper in oil and you can use either going to the 7868s.
If this is a nice unit and pretty clean I would change the filter caps and Jim Mcshane has all of those for that model and they are very reasonable and they make a world of difference in performance and power and distortion will drop and power will go up if you do it right.
If you email me with your phone number I can call you and walk you thru the bias.Its a lot easier than telling you over email and I have free long distance..I can also give you my number and you can call its up to you..My email is merccougar89@yahoo.com
- Now, how can you get this sort of service elsewhere? - doodlebug 20:56:41 06/11/07 (1)
  If there's no other indicator of what an online community (asylum?) can do, I can't imagine. That's a wonderful offer, Mike. My you have unexpected delights on your next vacation for such support!
  
  Cheers,
  
  David
  - RE: Now, how can you get this sort of service elsewhere? - Michael Samra 22:05:40 06/11/07 (0)
    Ill be there David..Now I can stay your house or Mike's when I cruise to Santa cruz right?? hehe

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