[AMPS] SB-220: Operate/Standby Switch
Tue, 6 Feb 2001 08:05:27 -0800
>>Oh sure! Let the guy use his handy $25 dollar VOM to set voltage!
>have you looked at the accuracy of these cheap digital voltmeters? The
>seen were remarkably good...with no RF around.
> >I've seen six cases of low cathode emission in the
> >past 18 years in 8877's. In five of those cases,
> >the filament systems were modified to reduce voltage
> > and they missed by a few percent.
>can you prove it was that? Did it repeat on the replacements?
>As a percentage of the number of 8877s made, that must be miniscule.
>Just to stir things up, what percentage of 8877s made
>(not just in ham gear) have failed because of parasitics?
According to Mr. Rauch, 8877s can not oscillate. He has never
explained why. see Figure 24 on my Web site.
- Rich..., 805.386.3734, www.vcnet.com/measures.
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