[ARC5] Octal Crystals

[WA5CAB at cs.com]

Wayne,

You're welcome.  The differing pinouts surprised me too.  Had the manuals 
all said they were the same, I never would have gone to the trouble of 
testing some.

Yes, the 200 KC crystal in the FT-241 holder is standard in the BC-652.  
There should be a leaf spring holdown as well.  The same crystal was used in 
several other sets, including the ATC (AN/ART-13) transmitters and BC-1306 
receiver.  I think I dimly recall an early SCR-506 TM showing a crystal in an 
octal based holder but I've never actually seen one.  But in the BC-221, I 
don't know of any "official" authorization for doing it.

In a message dated 9/4/2009 8:52:16 AM Central Daylight Time, 
releazer at earthlink.net writes: 
> Thanks for the info on the octal socket crystals, Robert.  I never would 
> have guessed!  And that brings up something else I was wondering about.
> 
> On more than one occasion I have seen a non-octal crystal plugged into an 
> octal crystal socket.  The first time I assumed someone had kludged the set 
> (I think it was in a BC-221) but I recently acquired a very nice 
> essentially unmodded  BC-652-A that has a crystal for the calibrator plugged in the 
> same way.  Was this a normal approach, a "legal option" as an alternative 
> to an octal holder crystal?
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480