[ARC5] BC-221 and LM on eBay

[MICHAEL ST ANGELO]

I've been doing lots of spring cleaning in the basement. I dug out my BC-221T. I believe I picked it up at the Military Vehicle meet in Glibert PA years ago.

It does have the calibration book. The plastic cover plate is yellowed and has shrunk but the book is in good shape. 

The book is attached to a metal plate which is apparently screwed to the front panel. I am surprised so many sets are missing the book since it would take some effort to remove it.

By the way, the spring cleaning mostly consisted of getting rid of data books, technical books and magazines, most of which are available online. Fortunately the InfoAge museum in Wall NJ will take most technical  documentation, except for QST (they have every issue). They are more selective on hardware donations but are looking for RADAR equipment. If you have stuff taking up space you may want to contact them.

Mike N2MS

> On 03/28/2022 10:24 AM MICHAEL ST ANGELO <mstangelo at comcast.net> wrote:
> 
>  
> I picked up a BC-221 and a neighbor gave me a LM frequency meter. He was a high school physics teacher and one of his students gave it to him.
> 
> What is the published frequency accuracy of these meters? The only notes I could find online is this observation by VE3BDB. He read in the manual that that the maximum error will occur when measuring a 4 MHz signal at minus 30 degrees C where an error of 1.355 KHz (0.034%) could occur. His observations indicated that the BC-221 is easily capable of 250 Hz accuracy on 80 & 40 M.
> 
> <https://www.qsl.net/ve3bdb/bc221observations.htm>
> 
> Mike N2MS
> 
> 
> > On 03/28/2022 8:38 AM Bob kb8tq <kb8tq at n1k.org> wrote:
> > 
> >  
> > Hi
> > 
> > As an “all in one” gizmo for keeping a pile of HF radio gear tuned up,
> > I still would put the LM / BC-221 pretty close to the top of the list. Yes,
> > there would be other things on the list as well. With care, you can do a 
> > lot of things with one of them.