On Mon, 16 Nov 1998 13:52:03 +0000 "Ian White, G3SEK"
<G3SEK@ifwtech.demon.co.uk> writes:
>
>
>>>Note that the necessary breakdown voltage foir a shunt stabilizer
>device
>>>is not the output voltage, but the INPUT voltage, to handle
>transient
>>>situations where the device is completely cut off and the
>>>drain/collector voltage rises all the way up to the input voltage.
>(This
>>>is also why you can't use a transistor shunt stabilizer with a
>dropper
>>>resistor from a B+ supply of more than 1-1.5kV.)
SNIP
Ian, what would be the impedence of a vacuum tube series regulator? And
what effect if any would it have at a Es of 1KV or more?
While a 4CX250 would require a regulation of 1 volt or less for IMD
reasons would that hold true with large tetrodes?
Perhaps a tutorial on exactly what is involved in determining the screen
regulator impedence is in order. I admit to being somewhat confused by
all the claimed numbers of various methods.
Tnx! Carl KM1H
___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|