[AMPS] series filaments

[w8jitom@postoffice.worldnet.att.net]

> From:          Rich Measures <measures@vc.net>
> To:            "Peter Chadwick" <Peter.Chadwick@gpsemi.com>,
>                "'amps'" <amps@contesting.com>
> Subject:       Re: [AMPS] series filaments
> Date:          Mon, 17 Nov 97 16:34:37 +0000

> >Tom says
> >>How do you get the tubes to share equal hum-free emission currents?
> >
> -  At 50 or 60 Hz, the emissivity of a 3-500Z filament is virtually 
> constant.  .  . . What could this possibly have to do with Mr. Rauch's 
> claim of inaccurate measurement of inrush-current in the series-connected 
> TL-922 filaments?  

Rich.

Read more carefully. I said it was a bias problem that affected 
emission.

Bias voltage does affect emission, at least in my gridded tubes.

73, Tom W8JI

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