Digest for sci.electronics.repair@googlegroups.com - 5 updates in 2 topics

Larz <dispcal667@nospam.net>: Sep 07 09:19PM -0400

I picked up a surplus yard light called Electripak SV-175M thinking that
it was 175 watts. It uses a mercury vapor bulb, but the bulb inside
appears to be 125 W. Since I want to use 175 W mercury vapor instead,
is it possible to swap out the medium base for mogul base and use the
175 W mercury vapor bulb? It has an H42 ballast, no capacitor. Thank you.
"pfjw@aol.com" <peterwieck33@gmail.com>: Sep 08 06:27AM -0700

No. About covers it.
 
Peter Wieck
Melrose Park, PA
John-Del <ohger1s@gmail.com>: Sep 07 09:51AM -0700

On Thursday, September 5, 2019 at 5:52:17 PM UTC-4, Tom Biasi wrote:
 
> > One just needs a recap but the other has different issues. There are several encapsulated modules in these radios and I'd like to know what it's in them.
 
> Those numbers are in SAMs AR36 and AR41 but are listed for Falcon.
> Fairlane lists TPO
 
 
Your right Tom, it's a 6TPO. It's stamped in the side but barely legible.
 
The '67 just needed a recap. The '66 was recapped many years ago, apparently by me according to the owner when he picked up the '67, but now it's dead other than a thump on turn on.
 
I injected a finger pulse into the final, and it's loud and clear. One of the IF transistors has no voltage on any pin, so it's got a bad encapsulated module as it has very few discrete components on the board.
 
The closest manual I had is an AR-43 for a Galaxie, but the board in that has no encapsulated modules. The only thing they share is a PNP Germanium output. Glad I don't need one of those.
 
A friend thinks he might have the AR-36 so I'll find out tomorrow.
Tom Biasi <tombiasi@optonline.net>: Sep 07 12:57PM -0400

On 9/7/2019 12:51 PM, John-Del wrote:
 
> I injected a finger pulse into the final, and it's loud and clear. One of the IF transistors has no voltage on any pin, so it's got a bad encapsulated module as it has very few discrete components on the board.
 
> The closest manual I had is an AR-43 for a Galaxie, but the board in that has no encapsulated modules. The only thing they share is a PNP Germanium output. Glad I don't need one of those.
 
> A friend thinks he might have the AR-36 so I'll find out tomorrow.
 
Good luck.
Fox's Mercantile <jdangus@att.net>: Sep 07 01:05PM -0500

On 9/7/19 11:51 AM, John-Del wrote:
> voltage on any pin, so it's got a bad encapsulated
> module as it has very few discrete components on
> the board.
 
It'll be a bit of a kluge, but you can substitute that
Couplate with discrete components.
 
 
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
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