Hallicrafters S-40 Restoration Pt. 2 - Power Supply Refurbish
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- Опубликовано: 12 сен 2024
- Mike uses a process that he uses to teach new to the hobby techs how to restore tube radios in logical steps. This video covers step two of the process.
This video is a learning module.
-Line cord update and install
-Fuse block
-Correct "Hot Wire" Orientation
-Check main power resistors
-Replace electrolytic's - Main Filter and Audio
-Re-Staff main filter capacitor
-Check resistors associated with the audio tube.
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Nice job, Mike. I am looking forward to the next step.
A great episode. Never saw an electrolytic like the paper one. Looks easier than the tar. If I come across an S 40, I think I will pick it up. Thanks JT
Thanks, Mike. Excellent video. I like the abbreviated approach, mainly since I already do restores, though some might be interested in more detail such as actually dremeling (is that a word) the cap to show how to open one. I may start using a dremel for that as I now have been using a hack saw which is more tedious.
Yes, put that hack saw away. To be clear, I use a flexible shaft with my Dremel. This allows me much greater dexterity as you can see. Both halves of that canister fir back together perfectly without serious clean up. However it wasn't always like that. My first few looked like I was drunk. :) I use that Dremel routinely in my restorations. As for the abbreviated versions, I feel that our subscribership here are fairly sharp folks and can run with the ball. However if anyone feels I have glanced over something and has questions, just fire away. I got no issues answering questions. Cheers and Thanks.
I was glad to hear that you are going to continue to clean up the chassis. Of course you are going to paint the "E" & "I" plates of the power transformer the required Colonial Red, right? ;-)
On a serious note, are you going to paint the clamshell of the power transformer at all? I ask because I watched someone paint a chassis with a chrome paint that was amazingly "watery" but dried super fast. It made the chassis look like it had been chromed plated and like it was brand new. I have not seen a transformer like the one on this radio on any other I have seen. Usually 2 clamshells are seen and both have been painted black. The clamshell on this one appears like it is made of aluminum which I have never seen before. I wanted to suggest using the chrome paint on the clamshell since I think it would improve the look of the transformer. While my bit about the "Colonial Red" paint was a bit tongue in cheek, I seriously think it would look better with it painted red. There is another gentleman that restores old radios and he does use the red paint on every one he works on and I have to admit that it does look good. Anyway, it is a personal preference issue and you either do it or not...neither way is "wrong", just a matter of personal preference.
Concerning the Electrolytic capacitors in the metal can, I have seen someone do the prying off the ring at the bottom and then after restuffing it the ring was folded over and looked amazingly good, but I like your method better.
When I get out of the financial hell that I am in, I have a Hallicrafters 8R40 Run 1 radio that I need to work on, and it requires a LOT of work on this one!
Imma thinkin' Imma gonna take a pass on the red :) The top cover is silver painted steel. If something needs painting i usually stick to the original colors for the sake of an accurate restoration. But in this case, to paint any portion of the transformer would mean removing it. And disturbing all those 80 year old connections on the bottom of that unit just isnt a good idea. So I will clean it up as best as possible. Why poke the bear. Know what I mean?