[Hammarlund] SP-600 Fuses

[Bob Camp]

Hi

Be careful with Radio Shack fuses. They often are not very clear  
about the 28VDC max versions versus the ones that are rated for 250  
VDC. The low voltage versions can do "interesting" things on high  
voltage.

KB8TQ
Bob


On Apr 3, 2007, at 7:48 AM, Carole White-Connor wrote:

>
> Thanks for the advice. I found a 1.5A fuse at Radio Shack and am  
> using it in
> place of the missing 1.6A fuse. I had already replaced the B+ and  
> bias filter
> caps so the 1.5A fuse works nicely.
>
> This set is interesting. The tuning cap cover is missing so the JX  
> number is
> missing. However, since there is an IF Gain dial in the upper right- 
> hand
> corner where the crystal frequency knobs usually are, I'm guessing  
> that it's a
> JX-4. Thankfully, a prior owner removed the black beauties and  
> replaced them
> with caps that look like Vitamin Qs. That's the good news.
>
> The bad news is that this set was stored in a very damp  
> environment. There was
> a lot of green crud inside the tuning turret on the fingers that  
> engage the RF
> deck. That required bandswitch wiggling to get them to engage  
> properly. I just
> spent the evening cleaning them off. (Deoxit and Q-tips are right  
> up there
> with Duck tape and WD-40 as the most useful items ever invented).
>
> Joe Connor
>
>
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