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Most models were BC-221-M but this one is a 221-T.
It looks the same as the M model, perhaps a later version.
I also used them in the 1950/60's state of the art
at that time !!, so was an AR88.
When the Racal RA17 was introduced, because of its
accurate frequency calibration the BC-221 became obsolete
The 221 was an essential tool when using an AR88 to
ascertain frequency accuracy. A clumsy procedure by todays standard.
73 mal/g3kev
----- Original Message -----
Sent: Saturday, May 16, 2009 10:03
AM
Subject: Re: LF: BC-221-T
Hi All,
I can probably still use a BC221 having used them at
Hanslope Park in the 40's to set uo
HRO's so that German stations that we
were monitoring could be found. I still have one in
the loft but not in
such good order as Mal's I am afraid.
73 Laurie
2009/5/16 pat gillen <[email protected]>
Mal,
Alan 3nyk and myself were just discussing those a couple of days
ago. We
wondered how many of us were left who knew how to use a BC221 or
similar
het. unit. Don't think I can quite qualify as being old enough
to have
known the man who made yours though. Better question, however,
is can you
still read the initials on the cal charts?
On Fri, 2009-05-15 at 19:59 +0100, mal
hamilton wrote:
> I dug out a nice BC 221 today. It would make a nice
OSC/driver for MF.
> It is mint condx but has not been used for years.
Some will be
> familiar with this unit, vintage WWII made in the USA
(ZENITH RADIO
> CORPORATION CHICAGO) Maybe someone knows the man that
made it !!
>
> mal/g3kev
>
--
73 de Pat G4GVW
QTH Nr. Felixstowe
(East Coast of
UK)
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