[Milsurplus] BC-9: Earlier and Later Operating Instructions.

[Kenneth G. Gordon]

On 12 Feb 2017 at 21:30, Hubert Miller wrote:

> The later instructions certainly give no indication of anything like what you're experiencing.

Neither do the earlier ones for that matter.

> You  don't suppose this has something to do with the hand-selected,
> "one in ten or fifteen" VT-1 tubes that will work in the RF slot ? 

That was what I was wondering too.

BTW, David, what is the purpose of the 20 volt source and the resistor, pot, and S-1?

Also, in Mike's schematic, where is the filter "F"?

I am going to dig out my #30s, build a clone of this thing, and see what I can make of it.

>From the similarity of the circuit AFTER the oscillator tube, I suspect that the two 
transformers, T-2 and T-3 are simply common 3:1 transformers. Anyway, that is what I 
intend to use there.

Ken W7EKB

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