[ARC5] Fw: ARC-5 Crystal Question

[Henry Mei'l's]

Will just mention that I also have used several GDOs
(Millen, Eico, HB ...) to check xtals- you just bring leads from the xtal 
pins into the GDO's coil socket - I assume that is what Dennis does, too.

Henry, (aka 'Me-too!' ;0)

----- Original Message ----- 
From: "Henry Mei'l's" <meils at get2net.dk>
To: "Discussion of AN/ARC-5 military radio equipment." 
<arc5 at mailman.qth.net>
Sent: Friday, August 13, 2010 7:40 AM
Subject: Re: [ARC5] ARC-5 Crystal Question


> Hi Dennis,
>
> And what freq. did it oscillate at ;0) - just kidding - but there is a 
> slight difference in whether xtals 'swing' in parallel or series mode, 
> right?
> If I had a gdo at that time, I might have done the same -- good idea.
> (Just to be trivial: was the xtal marked Kc or kc or just 8870? - we had a 
> big discussion on the Radio Officer's reflector about proper 
> abbreviations.
> I could just take a peek into my newly acquired ARC-5s - but this is 
> easier.)
>
> 73, Henry OZ1UF
>
> ----- Original Message ----- 
> From: "Dennis Monticelli" <dennis.monticelli at gmail.com>
> To: "Discussion of AN/ARC-5 military radio equipment." 
> <arc5 at mailman.qth.net>
> Cc: <jfor at quik.com>
> Sent: Friday, August 13, 2010 7:00 AM
> Subject: Re: [ARC5] ARC-5 Crystal Question
>
>
>> OK.  Curiosity got the better of me.  After reading the thread again, I
>> pulled the 8870Kc unit out of my T22 and hooked it up to my trusty grid 
>> dip
>> meter, which I use as a crystal checker.  It oscillated just fine.
>>
>> Dennis AE6C
>>
>> On Wed, Aug 11, 2010 at 9:35 PM, Henry Mei'l's <meils at get2net.dk> wrote:
>>
>>> I actually did try to get an '8000kc'/kHz  ARC-5 xtal to ocscillate 
>>> (Think
>>> I
>>> lashed together a Pierce, (triode/grid-to-plate) breadboard setup). This
>>> xtal didn't oscillate -- but on the other hand I don't recall whether I
>>> ever
>>> tried to use it in its intended function, so it might have been
>>> disfunctional in all respects.
>>> But as Dennis writes, why shouldn't they oscillate?
>>> Easy enought to find out.
>>>
>>> Henry
>>>
>>>
>>> ----- Original Message -----
>>> From: "J. Forster" <jfor at quik.com>
>>> To: <arc5 at mailman.qth.net>; <milsurplus at mailman.qth.net>
>>> Sent: Thursday, August 12, 2010 5:10 AM
>>> Subject: [ARC5] ARC-5 Crystal Question
>>>
>>>
>>> > Out of curiosity, does anybody know if the quartz crystals, used to 
>>> > spot
>>> > check the transmitter frequency, will oscillate? In the Tx they are 
>>> > only
>>> > used as very narrow band filters.
>>> >
>>> > Thanks,
>>> >
>>> > -John
>>> >
>>> > ===============
>>> >
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