>>How useful is a bias voltage that wanders with temperature?
>
>
>
>I found an easy fix for that. Use #12 wire (what I had on hand) to run a
>string of zeners perfboard mounted to the fan entrance to the SB220. A
>simple angle bracket attached the zeners to the stock fan mounting holes,
>and I need not worry about thermal runaway or problems with overheating and
>destroying the diodes.
>
>Best of both worlds.. When changing tubes from Eimac to Amperex, just move
>the tap on the diodes to get the proper ZSAC
>
Amen to that.
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|