[Milsurplus] CRC-7

[Bruce Gentry]

John J Mccarty wrote:
> Hello Ben, George and All;
>
>
>   I found the "orignal" conversion article in April 1958 CQ. It was done up in
> the Surplus column by Ken Grayson, W2HDM.
>
>  Good news: It does not call for a sharp hacksaw.
>
>  Bad news: It does suggest use of a blow tourch or big soldering iron to get
> into the sealed case. Then it suggests drilling holes in the case to allow for
> adjustments.
>
>
> 73
>
>
>
> John n9hrt
>
> On 1/7/2011 10:51 AM, Military1944 at aol.com wrote:
>   
>>  
>> Ben:
>> The CRC-7 was indeed Korean war vintage.  And, I recall  seeing a ham 
>> conversion article back in those days, but I have no idea in which  publication 
>> it appeared.  Actually I found it in Vol. III of the Surplus  Conversion 
>> Manual series.  Warning: The article starts with: "First, you  need a sharp 
>> hacksaw...." But it does include a clear schematic.
>> Good  luck!
>> 73,
>> George W5VPQ
>>
>>
>>
>> ------------------------------------------
>>  
>> Thanks George. I have the surplus conversion manual as you  say. 
>>  
>> I dont' know how they joined to top part of the tube to the  middle, can't 
>> think it was welded, maybe soldered with a special tool. 
>>  
>> Anyway, after cleaning I applied power to mine and amazingly  it still 
>> works on rx and tx. Not bad after 60 year say. 
>>  
>> I don't think I'll try a 2Mtr mod, getting at the xtal looks  just too 
>> difficult. I'll keep it as a working example, hi. 
>>  
>> cheers, Ben G4BXD.
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>
>
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