[ARC5] BC-221E converted to loctals and high voltage?
John Franke
jmfranke at cox.net
Fri Jul 25 11:44:24 EDT 2008
According to TM 11-300, the BC-221-E made by Philco Corporation was designed
to use loctal tubes. But the high voltage was 135V.
John WA4WDL
----- Original Message -----
From: "Tom Bridgers" <Tarheel6 at msn.com>
To: <arc5 at mailman.qth.net>
Sent: Friday, July 25, 2008 11:25 AM
Subject: [ARC5] BC-221E converted to loctals and high voltage?
> Recently purchased a BC-221E that had been converted to loctal tubes and
> had a add-on power supply that fed about 350 volts under load to the
> meter.
>
> Does anyone happen to have any information on why a BC-221 would be
> converted to loctals and why they chose to run the meter at such high
> voltage? For example was this suggested in QST, CQ or other type radio
> mag's of the 50's?
>
> I have several BC-221 type meters and this is the first one that I've
> encountered with loctals and high voltage...
> Thanks in advance for any comments or references,
> -tom
> p.s. -- The meter also had been installed in a home-made, wooden
> cabinet -- which I think is pretty neat. The upside is that it's much
> easier to operate than with the original cabinet, but of course the down
> side is it's not original and probably has less value as a collectible.
>
>
>
> _______________________________________________
> ARC5 mailing list
> ARC5 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/arc5
>
More information about the ARC5
mailing list