[Hallicrafters] SX-42 Hum(bug)

[Ray, W2EC]

Hi Mike,

Don't be put off by what Duane says, recapping and rebuilding a radio is
an excellent way to get your feet wet. All the parts and circuitry are
right there. It is easy to see what was there before so it is easy to
just remove one part at a time, replace and continue on. What's tough is
designing and building from scratch.

You go right ahead with your project, there are lots of people on here
who will be glad to help you along, rather than trying to discourage you
by saying you shouldn't do it.

I'll agree with Duane that if you have a local ham that would visit with
you, he could offer some hands on encouragement, but don't worry about
doing it on your own, just be safe.

Good luck and 73, Ray  W2EC

"Duane Fischer, W8DBF" wrote:
> 
> First, it appears that you have little, if any experience and knowledge, in
> these matters. We were all there once upon a time. This is not a job for a
> novice Mike. Get somebody in your area in Sarnia, or Port Huron, to help you.
> There are Hams, or radio devotees out there who would be happy to guide you
> along.
> 
> If you continue down the path you have started upon, it is likely you may damage
> more than you fix. One thing breaking can cause a domino effect.
> 
> Duane Fischer, W8DBF
> 
> ----------
> From: Mike Smout <mikesmout at sympatico.ca>
> To: hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] SX-42 Hum(bug)
> Date: Monday, July 29, 2002 9:53 AM
> 
> I've completed the first part of the SX-42 restoration which is the cosmetic
> part. After sliding the chassis back into the cabinet I built up the nerve to
> power it up. I know what you're thinking, but I do not own a Variac and the
> temptation was great. Everything lit up, no smoke, no flames etc. All I got was
> a hum. My first thoughts are that the electrolytics are shot, so I purchased an
> entire set of caps *yikes what a job this is gonna be* and will proceed to
> replace them, at least the ones that I can get at. The chassis is super clean
> and it appears that there is no leakage from the paper caps. Also, it appears
> that no one has done any modifications to it at any point in its life. I have
> tested some of the tubes and a couple are testing border line. Assuming that the
> electrolytics gave up the ghost, could this have damaged some of the tubes if it
> were left on for a period of time. I would welcome your suggestions on what to,
> and what not, to do. Thank you in advance. I also looked at the bandswitch
> mechan
> 
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF **for assistance**
> dfischer at usol.com
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