[ARC5] [Milsurplus] Frequency meter Crystal question -

[J. Forster]

You'd also want to check the capacitance the crystal "sees" at a very
minimum. There may also be other circuit elements that effect stability
and temperature compensation.

FWIW,
-John

===============



> On Sep 3, 2009, at 11:44 PM, WA5CAB at cs.com wrote:
>
>> Hutch,
>>
>> Short answer is No. The manuals say no. TM 11-300 (the final
>> edition) says
>> the Signal Corps DC-9's are wired to 3 and 7. Three different LM
>> manuals
>> (two NAVAER and one NAVSHIPS) say that the Navy 40023B is wired to 2
>> and 6. But
>> because these are mirror images I still didn't believe it. It
>> wouldn't have
>> been the first time that an error got copied forward for years,
>> decades or
>> centuries. So I went to the shop, fired up my TS-330A, and tested
>> two of
>> each. Four different contractors. s'fact. Not the same. Who'd'a
>> thunk it?
>
> Robert,
>
> Thanks for setting us straight on this.  I"m sure I have spare
> crystals of that sort, but whether they are of the two different
> types, I don't know.
>
> Of course two jumpers on the crystal socket would at least let you try
> the swap to see if it works.
>
> Roy
>
> Roy Morgan
> k1lky at earthlink.net
> 529 Cobb St.
> Groton NY, 13073
> Home: 607-898-3607
> Cell: 301-928-7794
>
>
>
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