[R-390] SP-600

[rbethman]

Cecil,

Actually, I have the entire manual, and BIG wiring diagrams.

It really is a pretty hot receiver.  The only issue I have is the meter 
got blown when I reached behind to change one of the two #47 bulbs.  
Right now, a replacement meter is not in the budget. Fixing them is 
pretty well out of the question too.

It is a 250uA movement.  The closest I have is a 200uA movement. the 
body may fit the hole, but the rest is far too large.

Regards,
Bob - N0DGN

On 4/28/2014 1:16 PM, chacuff at cableone.net wrote:
> Aww Booo...
> Sounds like you need to pick up a nice stock JX somewhere so you can 
> play with some of these upgrades/mods.  It's a great radio and there 
> are a lot of them out there...
> I'm looking forward to doing a couple of mine that are waiting bench time.
> Too bad the Northern Radio is not a better documented variant.
> Cecil
> *From:* rbethman
> *Sent:* ?April? ?28?, ?2014 ?12?:?10? ?PM
> *To:* R-390-List
> *Subject:* [R-390] SP-600
> List,
>
> The problem with all this additinal SP-600 info is that my SP-600 is one
> of the Northern Radio versions.
>
> Most, actually about all, does not apply.
>
> The Northern Radio Variant is a J-11.  No JX version at all.  It is the
> first diversity version and is a bit of an oddball.  There are no
> crystal switches, and it used a Master Oscillator along with a second
> SP-600 by Northern Radio to work in diversity.
>
> Very little is common with the JX series.
>
> Regards,
> Bob - N0DGN
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