Forum,
On this Philco 42-350, 1 of 3 IF cans (Rider's item 31 2nd IF Philco #32-3788) was bright tin plated, but rusted, and I'd like to replate it. I've searched the web for a small hobbyist tin plating kit, but without success. Tin plating should be one of the more mundane plating tasks. I found 1 kit, but $175 to plate a small IF can is hardly justified. Any help??

marv

PROBLEM SOLVED!!! And looks ALMOST like the original. After rust removal and fine steel wool, used my almost forgotten BRASSO with a rotary tool and buffing wheel. Now clear coated and drying. Would still like to purchase a small tin plating kit, but reasonably priced. Thanks for any belated help.

marv

:Forum,
:On this Philco 42-350, 1 of 3 IF cans (Rider's item 31 2nd IF Philco #32-3788) was bright tin plated, but rusted, and I'd like to replate it. I've searched the web for a small hobbyist tin plating kit, but without success. Tin plating should be one of the more mundane plating tasks. I found 1 kit, but $175 to plate a small IF can is hardly justified. Any help??
:
:marv

Do you live near a music store? A musician friend of mine had an instrument plated by a music store, and they had a plating company somewhere they sent his horn to when some silver plating wore off. Came back looking New!!! and didn't cost very much. Delta has a big plating shop, but the place smells terrible.

Lewis

:PROBLEM SOLVED!!! And looks ALMOST like the original. After rust removal and fine steel wool, used my almost forgotten BRASSO with a rotary tool and buffing wheel. Now clear coated and drying. Would still like to purchase a small tin plating kit, but reasonably priced. Thanks for any belated help.
:
:marv
:
::Forum,
::On this Philco 42-350, 1 of 3 IF cans (Rider's item 31 2nd IF Philco #32-3788) was bright tin plated, but rusted, and I'd like to replate it. I've searched the web for a small hobbyist tin plating kit, but without success. Tin plating should be one of the more mundane plating tasks. I found 1 kit, but $175 to plate a small IF can is hardly justified. Any help??
::
::marv

Marv: Eastwood Company has a tin-zinc electro-plating system for $70. They specialize in classic auto restoration products. It's way more than you need for this project, but less than the other supplier you found. See: http://eastwood.resultspage.com/search?p=Q&ts=custom&w=plating
I would think any local plater could do it for less money, but you'd be paying for set-up time, etc. Nickel might look good too.
Steve

Same subject, 2nd IF can has resistor (Item 31D) inside marked 68k; measures 77k; P/L and schem. says 47k. Anybody have data on this change? Thanks for the info on plating kits, but still too expensive for a one time use.

marv

:PROBLEM SOLVED!!! And looks ALMOST like the original. After rust removal and fine steel wool, used my almost forgotten BRASSO with a rotary tool and buffing wheel. Now clear coated and drying. Would still like to purchase a small tin plating kit, but reasonably priced. Thanks for any belated help.
:
:marv
:
::Forum,
::On this Philco 42-350, 1 of 3 IF cans (Rider's item 31 2nd IF Philco #32-3788) was bright tin plated, but rusted, and I'd like to replate it. I've searched the web for a small hobbyist tin plating kit, but without success. Tin plating should be one of the more mundane plating tasks. I found 1 kit, but $175 to plate a small IF can is hardly justified. Any help??
::
::marv

Marv: Isn't there a spray can with shiney paint that would have looked OK on a smooth substrate?
Doug

:PROBLEM SOLVED!!! And looks ALMOST like the original. After rust removal and fine steel wool, used my almost forgotten BRASSO with a rotary tool and buffing wheel. Now clear coated and drying. Would still like to purchase a small tin plating kit, but reasonably priced. Thanks for any belated help.
:
:marv
:
::Forum,
::On this Philco 42-350, 1 of 3 IF cans (Rider's item 31 2nd IF Philco #32-3788) was bright tin plated, but rusted, and I'd like to replate it. I've searched the web for a small hobbyist tin plating kit, but without success. Tin plating should be one of the more mundane plating tasks. I found 1 kit, but $175 to plate a small IF can is hardly justified. Any help??
::
::marv

Marv. I've used your method before. Polishing the steel looks really great. It takes a lot of effort to make it look like chrome or tin, but it is wonderful. It's a lot more cost effective than plating, too. A couple of coats of lacquer will keep it looking like new for a long time so long as it isn't bumped a lot. I polished a few screws on a fan I restored for my brother so that they looked like fresh chrome. Incredible! I should have polished the whole nickle plated grill, but I was feeling kind of lazy. It would be a lot of work.

Regarding the resistor in your IF can, if it's one of those resistors that goes between the IF secondary and the audio amp, it isn't too critical. It affects tone and detector loading to some degree. The higher the resistance goes, the mellower the audio will be, though it won't necessarily get much quieter unless the resistor gets quite high in value.

T.

Thomas,
No, its right across the primary of the 2nd IF, and I suppose is used to reduce the "Q", so going from 47k to 68k or even 77k might make a significant difference in circuit performance. I suspect it has to do with the fact that this set had the old FM band, used the same IF subsystem as AM, and increased the bandwidth sufficient for FM frequency excursions of those days. Although +/- 75kHz today, don't know what it was then.

marv

:Marv. I've used your method before. Polishing the steel looks really great. It takes a lot of effort to make it look like chrome or tin, but it is wonderful. It's a lot more cost effective than plating, too. A couple of coats of lacquer will keep it looking like new for a long time so long as it isn't bumped a lot. I polished a few screws on a fan I restored for my brother so that they looked like fresh chrome. Incredible! I should have polished the whole nickle plated grill, but I was feeling kind of lazy. It would be a lot of work.
:
:Regarding the resistor in your IF can, if it's one of those resistors that goes between the IF secondary and the audio amp, it isn't too critical. It affects tone and detector loading to some degree. The higher the resistance goes, the mellower the audio will be, though it won't necessarily get much quieter unless the resistor gets quite high in value.
:
:T.

Doug,
The best Chrome/bright tin type I've found is DupliColor from automotive places, but just touching it after drying wo gloves, tarnishes it. I've found that overcoating with clear acrylic will negate the finger touch, but also renders it un-chrome like. More like plain somewhat dull aluminum, and of course clear lacquer would dissolve it. As noted in my second posting, de-rusting, Brasso and clear lacquer overcoat is close to the original bright tin plate which seemed to disappear with de-rusting. Another unique feature of this radio is the tin stationary plates and steel shaft of the tuning condenser, and of course rust remover attacked the aluminum rotating plates. After an attempt to dissolve the rust, I gave up, rinsed in hot water blowed dry and coated with silicon spray to retard any furhter rust build-up. Its actually a quad with 2 large multi finned for AM band and 2 smaller (2 fins) for the FM band.

marv

:Marv: Isn't there a spray can with shiney paint that would have looked OK on a smooth substrate?
:Doug
:
::PROBLEM SOLVED!!! And looks ALMOST like the original. After rust removal and fine steel wool, used my almost forgotten BRASSO with a rotary tool and buffing wheel. Now clear coated and drying. Would still like to purchase a small tin plating kit, but reasonably priced. Thanks for any belated help.
::
::marv
::
:::Forum,
:::On this Philco 42-350, 1 of 3 IF cans (Rider's item 31 2nd IF Philco #32-3788) was bright tin plated, but rusted, and I'd like to replate it. I've searched the web for a small hobbyist tin plating kit, but without success. Tin plating should be one of the more mundane plating tasks. I found 1 kit, but $175 to plate a small IF can is hardly justified. Any help??
:::
:::marv