[Milsurplus] Milsurplus Digest, Vol 256, Issue 73 BC 221

[Bob Camp]

Hi

I’ve always wondered what a FET conversion would do to the accuracy of the calibration book. Yes, that *assumes* the target device actually still has a book that is accurate. 

Of the two, I think I’d go for converting an LM over a BC-221. 

Bob

> On Aug 28, 2025, at 3:21 PM, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> 
> I think an article on BC-221 or LM FET replacements for the tubes, was in 73 Magazine. I have the article - "somewhere". Nowhere near as involved as any complete receiver replacement. FET means "Filament Eliminated Tube."
> -Hue Miller
> Sent from my Galaxy
> 
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