[Hallicrafters] 1000 kc crystal tube

[rbethman]

Mike,

Read Dan's original post.
> Signal corps. It looks like the black metal can tubes like a
> 6SJ7 etc. It is brand new. Can anyone use such a item?
>    
>    
No one has said it is a "glass-tube" crystal

I simply added that the MOST likely source was the LM-221 or BC-221 
Frequency Meter series.

I've got both here.  Both have the all metal ones, and one even has a 
spare along with the 80 and one other.

Bob - N0DGN


On 2/25/2010 7:05 PM, Mike Everette wrote:
> The BC-221, and similar Navy LM series, did not use glass-tube crystals.  The 1000 KHz crystals were in a metal octal tube envelope.  I've seen a lot of both the 221 and LM and never, ever encountered one with a glass crystal.
>
> 73
>
> Mike
> WA4DLF
>
> --- On Thu, 2/25/10, rbethman<rbethman at comcast.net>  wrote:
>
>    
>> From: rbethman<rbethman at comcast.net>
>> Subject: Re: [Hallicrafters] 1000 kc crystal tube
>> To: hallicrafters at mailman.qth.net
>> Cc: "Dan Cotsirilos"<k9dtc at comcast.net>
>> Date: Thursday, February 25, 2010, 6:19 PM
>> Dan,
>>
>> Look for a LM-221 (or is it a BC-221?) frequency
>> meter.  That's where it
>> came from, almost a certainty!  They all have one, and
>> some even have a
>> spare - IF the spares haven't been robbed.
>>
>> Bob - N0DGN
>>
>> On 2/25/2010 6:04 PM, Dan Cotsirilos wrote:
>>      
>>> Someone sent me in error a 1000 kc crystal unit marked
>>>        
>> Signal corps. It looks like the black metal can tubes like a
>> 6SJ7 etc. It is brand new. Can anyone use such a item?
>>      
>>>
>>> Dan K9DTC
>>>