[Hammarlund] SP-600-JX-1

[Kenneth G. Gordon]

On 19 Apr 2017 at 15:57, Brian Harris wrote:

> Ken,
> 
> Don't be afraid to fire it up. There is one power supply electrolytic
> that you might want to change.  It's easy to replace.  In mine there
> were no black beauties and all it really needed was a little cleaning
> and deoxit to make it play well. 

Yours must have been a later model in which the BBODs had been factory-changed to the 
disk-ceramics. Mine is full of BBODs and I am sure at least one is shorted, which means 
that, depending on what circuit it is in, it can take out an associated resistor, or even an IF 
coil. As I said, mine is a JX-1, which is a very early model.

So, no, I won't fire it up until I have, at least, changed out the BBODs...all 50+ of them.

I may sell any apparent "good" ones to the audiophiles on eBay... ;-)

>  I still need to align it and spray some faderlube in the rf and audio
> pots.  They are great sounding receivers for AM/CW, not so good with
> SSB because no product detector. 

Yup, and I really, really like that "military truck" look of them too. I also have at least one 
good BC-779 which I also really like.

Both will look, and work, very well when mounted in my 6' rack with the R-390A and the 
R-389. I also have one of those Collins-made multi-receiver antenna couplers, NIB...

I wish I had more bench space. I'd like to have the RAK, RAL, and the RBB and RBC 
mounted there beside the TCK.

Lessee...that is 320 lubs of receivers on the bench, a 300 lub, 5' tall transmitter and its 
associated 200 lub (hee hee!) home-brew power supply. Is that "heavy metal"? :-)

I'm glad we don't live in an earthquake zone...

Ken W7EKB


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