Re: [EVDL] Fair Radio parts and Rudman Mk1 docs needed

[Lee Hart via EV]

From: David Chapman via EV 
> Does anyone know of a source for the AC and DC switch / breakers on a Fair 
> Radio charger? These
> appear to be some type of aircraft or mil spec switch with I believe an 
> integral breaker.

Yes, I think that is correct. It's a standard type, but I don't recall how it 
mounts. Do they mount with a single 15/32" hole? Or with a hole for the toggle 
lever, and two screwns (one at each end)?

> When I first got this unit I opened it up, cleaned and checked all the diodes 
> and connections and installed a large 120v fan and it has been the neatest 
> charger / power supply I have ever owned.

I agree. Simple as dirt; it's just a big transformer with dozens of taps, and 
switches to set the output voltage in 1v steps, a bridge rectifier, and 
volt/amp meters. Adding a fan is an absolute necessity.

> PS, still got about 50 Rudman Mk I regulator un-populated boards if anyone 
> has the parts
> list / docs laying around to share.

I traced out the circuit, and documented it on my website. I use them for 
battery testing. See  at the "Battery 
Testers" section.

--
Excellence does not require perfection. -- Henry James
--
Lee A. Hart http://www.sunrise-ev.com
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Re: [EVDL] Fair Radio parts and Rudman Mk1 docs needed

[Tom Keenan via EV]

I've found breaker/switches at West Marine. I believe they come in  5, 15, 20, 
and 30 amp versions. 

Tom Keenan

> On Jul 22, 2017, at 1:38 PM, David Chapman via EV  wrote:
> 
> Does anyone know of a source for the AC and DC switch / breakers on a Fair 
> Radio charger? These appear to be some type of aircraft or mil spec switch 
> with I believe an integral breaker. When I first rebuilt this charger I got a 
> pair from Bob Rice but I forgot to ask him where he found them. Or I forget 
> what he said. Either way. Could use a pair and prefer stock replacement ones 
> so I don't have to adapt or butcher the case. When I first got this unit I 
> opened it up, cleaned and checked all the diodes and connections and 
> installed a large 120v fan and it has been the neatest charger / power supply 
> I have ever owned. It has charged everything from Citicars to Jets, Zappys 
> and golf karts and been used for various electrolysis projects like refining 
> and plating. Damn the US used to make great stuff. Dach.
> 
> PS, still got about 50 Rudman Mk I regulator un-populated boards if anyone 
> has the parts list / docs laying around to share. Shame to see them going to 
> waste in a box. 
> 
>  "Do what you can, with what you have, where you are" - Theodore Roosevelt 
> “We reached the old wolf in time to watch a fierce green fire dying in her 
> eyes  I was young then, and full of trigger-itch; I thought that because 
> fewer wolves meant more deer, that no wolves would mean hunters’ paradise. 
> But after seeing the green fire die, I sensed that neither the wolf nor the 
> mountain agreed with such a view.” - Aldo Leopold
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[EVDL] Fair Radio parts and Rudman Mk1 docs needed

[David Chapman via EV]

Does anyone know of a source for the AC and DC switch / breakers on a Fair 
Radio charger? These appear to be some type of aircraft or mil spec switch with 
I believe an integral breaker. When I first rebuilt this charger I got a pair 
from Bob Rice but I forgot to ask him where he found them. Or I forget what he 
said. Either way. Could use a pair and prefer stock replacement ones so I don't 
have to adapt or butcher the case. When I first got this unit I opened it up, 
cleaned and checked all the diodes and connections and installed a large 120v 
fan and it has been the neatest charger / power supply I have ever owned. It 
has charged everything from Citicars to Jets, Zappys and golf karts and been 
used for various electrolysis projects like refining and plating. Damn the US 
used to make great stuff. Dach.

PS, still got about 50 Rudman Mk I regulator un-populated boards if anyone has 
the parts list / docs laying around to share. Shame to see them going to waste 
in a box. 

 "Do what you can, with what you have, where you are" - Theodore Roosevelt “We 
reached the old wolf in time to watch a fierce green fire dying in her eyes 
 I was young then, and full of trigger-itch; I thought that because fewer 
wolves meant more deer, that no wolves would mean hunters’ paradise. But after 
seeing the green fire die, I sensed that neither the wolf nor the mountain 
agreed with such a view.” - Aldo Leopold
-- next part --
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URL: 

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