Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

A question about Selenium rectifiers !
#2

(04-13-2012, 11:29 AM)Lee Petrie Wrote:   Hi out their in Philco-land !
A man wanted to bring his Philco 49-1611 over to have me take a look at it ! When over-viewing the schematic first, before he made a 2 hour trip in one direction, it appears the radio has Selenium rectifiers , which normally go bad, or so I'm told ! How will changing them out with "equal value" diodes, from our local Radio Shack store effect the voltages in the set , I was told b+ will be higher, but how much higher ? I don't want to experiment with dropping resisters , in a set 2 hours away, for the next service round, if the set fails again ! It's not fair to anyone, maybe best leave it alone, and not repair his radio !
Thanks for your help, Lee Petrie Joilet, IL.

Take a look here
http://w3hwj.com/index_files/RBSelenium2.pdf

You'd need the chassis and speaker, and do a recap job. It'd be on your bench for a month unless you have a lot of experience and a fully stocked stash of parts.

Enjoy.


Messages In This Thread
RE: A question about Selenium rectifiers ! - by codefox1 - 04-13-2012, 01:08 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-1008 conversion kit
I read about a kit to convert the variable speed changer in the Philco 42-1008 into a single speed unit.  That would rem...alangard — 09:30 PM
HiFi (Chifi) tube amp build - but my own design.
Tim Well...a chassis is metal. Magnetic or not, it does not matter. A transformer has some hum to it. It is natural....morzh — 08:40 PM
Hickok AC51 tube tester
I thought the 83 tube was bad because it looked white but it tests strong. Blue gassy though. I checked the fuse, it was...martinj — 08:37 PM
Shadow Meter Bulb
Ross I am not sure what current limiting effect the incandescent provides. They are two different parts of the sch...morzh — 08:31 PM
12' Philco
Bob Thanks for that photo. I have been looking for it, and I cannot find anythinmg on the web. I forgot it was here...morzh — 08:29 PM
Shadow Meter Bulb
I think after all has been said, I will use the same bulb that is specified for the dial pilot light which is a #55. I ...georgetownjohn — 07:31 PM
12' Philco
There was also this Philco! klondike98 — 07:25 PM
HiFi (Chifi) tube amp build - but my own design.
I expected a challenge and this is just part of it. But, it's also supposed to be fun, entertaining, informative and enj...TV MAN — 07:12 PM
Shadow Meter Bulb
Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM
HiFi (Chifi) tube amp build - but my own design.
Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo This is something alright. I'm go...RodB — 06:26 PM

[-]
Who's Online
There are currently no members online.

>