[Milsurplus] BC-221 types

[Bob Camp]

Hi

I haven't seen a lot of difference between the models. It seems to work out as:

1) Nice to have a calibration book that goes with the serial number you have.
2) AC power versions seem to be more desirable than the "not AC" versions. 

That said, it's not real clear just how accurate a > 50 year old calibration book really is. It's still a nice thing to have. I've always liked the versions with the corrector in the coil (thermal spring and rotating loop). I'm not at all sure they work any better. They are a cool piece of technology. 

Bob

On Jul 26, 2013, at 4:33 PM, telegrapher at q.com wrote:

> I hate it when a simple message gets flagged like this.
> 
> 
> ----- Forwarded Message -----
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> To: telegrapher at q.com
> Sent: Fri, 26 Jul 2013 16:30:10 -0400 (EDT)
> Subject: Mail Delivery Failure
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> This message was created automatically by the mail system (ecelerity).
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>>>> boatanchors at mailman.qth.net (reading confirmation): 550 The content of this message looked like spam.
> ----------------------------------------------------------------------------------------------------------
> 
> I would like to know if there is a bc-221 model that is undesirable and vs.
> 
> Try this again
> 
> Larry
> W0OGH
> 
> 
> 
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