[ARC5] ARC-2 Information

[Tom Lee]

Hue,

I owe you a big apology. Huge. In going through the few old Photofacts I 
could find in my pile, I see that a truly hot chassis was not at all 
common among the name-brand manufacturers in the 1950s and later. I'm 
guilty of over-generalizing on the basis of a statistically insignficant 
set of traumatic early experiences and never revisiting that early 
"knowledge". Thanks for challenging me to be less stupid.

Now, I'm headed to the kitchen for a large slice or three of humble pie.

Thank you again for the education.

-- Cheers,
Tom
(And out of curiosity, what is the date of that Boy Scout radio manual?)

-- 
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070
http://www-smirc.stanford.edu

On 9/6/2020 19:59, Hubert Miller wrote:
>
> You are right except maybe for the "on at least some". This makes it 
> sound like this was an option, maybe a minority, when in fact the 
> exact opposite is true.
>
> I just looked at a Boy Scout radio manual, the only manual I could 
> find ( it didn't hide well enough ) and it talks exactly on this 
> subject. In fact I was going to
>
> scan and post the schematic, to rub it in, but we can skip that.
>
> -Hue
>
> >On at least some AA5 sets there was indeed a separate internal ground 
> buss or common, separate from the chassis itself. And there was a 
> capacitor that went from that buss to the chassis. E.g., the 
> Hallicrafters S-38E and others. A paralleled resistor & capacitor 
> conntected buss & chassis. The schematic shows two different grounding 
> symbols as a result.
>
> Wayne
>
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