[R-390] Not A????? I'm not familiar with this model.....

[Les Locklear]

"Not A?"

I must be mellowing in my old age, there was a 
time.........................oh well, life marches on.

For the uninformed, there are two versions of the R-390 series, actually 
four if one counts the auto tune variants.

1. R-390/URR

2. R-390A/URR

That sounds so much better and less apologetic than a Not A or Non A.

Time to turn on my SP-600 Not JX and listen......................;-)

Les Locklear
Gulfport, Ms.
DX'ing Since '57
http://www.hammarlund.info/


----- Original Message ----- 
From: "Jim Green" <jagreen3 at sbcglobal.net>
To: <r-390 at mailman.qth.net>
Sent: Monday, September 24, 2007 5:57 PM
Subject: [R-390] I may have located one BIG problem with my R-390 (not A)


> Thanks to all who help me locate the non existent Y201 crystal in my 
> R-390 (not A). For those of you not up to date on this there is no  Y201 
> crystal in the R-390 (not A) receiver. There is however an error  in my TM 
> 11-5820-357-20 document. This is clearly intended to be for  the R-390 
> (not A), but it still refers to a part that is not in the  R-390 (not A) 
> but is in the R-390A. Namely the Y201 crystal. Be  forewarned. One would 
> think a document written in 1961 would be fully  vetted by now. Perhaps 
> there are later revs. of this document.
>
> Now on to the BIG problem. I guess I am going to get some practice 
> working on the Geneva drive. The first IF can rack has a lifter arm  on 
> each end. One end of this arm has a roller that rides on a cam.  When the 
> mc setting is between 0mc and 8 mc. and as the kc knob is  turned, this 
> cam turns and gently lifts and lowers the first IF can  rack. The problem 
> is the roller on the end of the front lifter arm is  missing. One end of 
> the first IF can rack gently lifts as the kc knob  is turned. However the 
> front end of the first IF can rack is sagging  much too low and doesn't 
> move. I'm concerned this may have damaged  either the slugs or the coil 
> windings.
>
> Wish me luck!
>
> Jim
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