[Test-Equipment] Xtal Tester

[Bry Carling]

Thanks Dino.  What is the lowest frequency it can handle?


Dino Papas <kl0s at cox.net> wrote:

>Joe - if you want a more capable tester you might consider W1FB's
>circuit in the January 1990 issue of QST and updated in the W1FB Design
>Notebook.  The PCB is available from FAR Circuits; makes a nice unit
>but you will need a signal generator and a counter in order to
>determine the xtal parameters (series resonant frequency, 3-dB response
>points and series resistance).
>
>73 - Dino KL0S
> 
>On Mar182013, at 1325 PM, Precision Carburetor DP wrote:
>
>> Hi Joe.
>> 
>> In the July 1964 issue of CQ magazine page 30  there is an
>construction
>> article for a crystal tester.  Below is a quote from a blurb on the
>title
>> page. 
>> 
>> 
>> 
>> "The simple device described below was built to determine the
>condition of
>> the many crystals around the shack."
>> 
>> 
>> 
>> W6BLZ EH Marriner was the author.
>> 
>> The simple circuit uses a 6AH6 pentode with a ma meter in the control
>grid
>> circuit.  If there is some interest I will scan the article for
>anyone who
>> wants it.
>> 
>> Jerry
>> 
>> W2JI
>
>______________________________________________________________
>Test-Equipment mailing list
>Home: http://mailman.qth.net/mailman/listinfo/test-equipment
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Test-Equipment at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

regards,
Bry Carling

-- 
Sent from mobile phone.