some questions:
when the plate voltage is listed as 45V, is it ok to run 30V? how would you
determine the range of acceptable voltages?
anyone know of any books or deccent web sites on tube circuit design? i want
to see all the math and models and what not. I have a little bit from a text
book written in the 60s but its not great.
btw, I'm working on a filter using the 1j17b, hopefully i can test it soon.
-ryan
when the plate voltage is listed as 45V, is it ok to run 30V? how would you
determine the range of acceptable voltages?
anyone know of any books or deccent web sites on tube circuit design? i want
to see all the math and models and what not. I have a little bit from a text
book written in the 60s but its not great.
btw, I'm working on a filter using the 1j17b, hopefully i can test it soon.
-ryan
On 3/12/07, bbluthang <jumpswine@...> wrote:
>
> There should be many tubes that can be used in this cct.
> I use a 1AG5, changed some resistors, different pinout, maybe it
> doesn't sound the same as Ken's but it certainly works.
>
> Look for pentodes with 1.2V (1.25V ok too!) directly heated cathodes
> and other similar specs on this list -
> http://pw2.netcom.com/~wa2ise/radios/penciltubes.html<http://pw2.netcom.com/%7Ewa2ise/radios/penciltubes.html>
> andrew
> .
>
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