[R-390] SERIAL # 163

[rbethman]

Rich,

My '51 Collins is an earlier one than yours.  That relay "may" look 
factory, but I have YET to see a relay in an IF deck that controls the 
power to the BFO.

Group?

Bob - N0DGN

RICHARD MC KINNEY wrote:
> Bob
>  Thanks for the quick responce.  I should have said it is a Collins 
> serial 163 order # 375-p-54
>
> ----- Original Message ----- From: "rbethman" <rbethman at comcast.net>
> To: "RICHARD MC KINNEY" <pmcknney at bellsouth.net>
> Cc: <r-390 at mailman.qth.net>
> Sent: Thursday, March 26, 2009 6:10 PM
> Subject: Re: [R-390] SERIAL # 163
>
>
>> Rich,
>>
>> Whom is the manufacturer?  Just a serial number doesn't help with whom
>> made it/
>>
>> The collective wisdom is here amongst us, but I had a '67 EAC s/n 131
>>
>> I also have a '51 Collins in the 3XX region.
>>
>> Perhaps some pix of the IF section.  Holler if you need a place to post
>> them.  I or others would be willing to put them up and provide you the
>> link to post.
>>
>> Bob - N0DGN
>>
>> RICHARD MC KINNEY wrote:
>>> DE WB4VFN Rich
>>>   I have a R390a Serial @ 163.  Problem is turning on the BFO looses 
>>> all output.  Rx is ok all bands with BFO off.  I have a manual for 
>>> thr R390a but I guess mine is an earlier model.  The BFO in mine is 
>>> nothing like the schematic.  Mine has a small relay that is switched 
>>> on by the BFO switch.  I don't think this is any kind of mod as it 
>>> looks factory wired. The BFO circuit is also very different then the 
>>> schematic I have.   The rig was given to me and I would love to see 
>>> it work again properly.  So far I've had to change the 17 mc crystal 
>>> and a few tubes to hear it work again.  Anyone have a schematic with 
>>> a relay in the BFO switch?  73 Rich
>>>
>>
>> -- 
>> Bob - NØDGN
>>
>
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-- 
Bob - NØDGN