[R-390] BBOD caps/solder

[Joe Connor]

Tisha is absolutely right about cleaning the turret fingers. I had an SP-600 that required a little wiggling when I changed bands. With the RF deck out, I cleaned the fingers very gently with solvent and a Q-tip. Once it was reassembled, no wiggling was needed when I changed bands.

The IF cans are tricky. In Chuck Rippel's SP-600 DVD, I believe he breaks one of those little wires while demonstrating how to recap the IF can. If it can happen to Chuck, what hope is there for the rest of us?! Actually, you just have to take careful note of where those wires are and refrain from swinging around any pliers, screwdriver, soldering iron, cutting tool or other implement of destruction.


                                 Joe Connor





>________________________________
> From: Tisha Hayes <tisha.hayes at gmail.com>
>To: r-390 at mailman.qth.net 
>Sent: Saturday, December 15, 2012 2:35 PM
>Subject: Re: [R-390] BBOD caps/solder
> 
>Getting to those caps in the turret on the SP-600 is a pain in the behind.
>Since you are in there you probably want to clean up the contacts on the
>turret and the fingers that the posts slide across. Be really careful, they
>are pretty fragile. If you misalign anything when you are snapping the
>little decks back into place you can break fingers off.
>
>It was pretty tricky in the IF cans too, the magnet wire off of the
>inductors is just in a really bad place relative to the capacitors.
>
>I have seen those little blobs of solder on the ends of BBOD's too. I think
>one time I accidentally overheated one and the lead came right off of the
>cap body. It has been +20 years but I too had some recollection that there
>was a larger conductor inside of the cap that the lead attached to.
>
>-- 
>Ms. Tisha Hayes/ AA4HA
>
>"In this denial of the right to participate in government, not merely the
>degradation of woman and the perpetuation of a great injustice happens, but
>the maiming and repudiation of one-half of the moral and intellectual power
>of the government of the world." -- Fredrick Douglass, 1848
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