Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

Zenith T724 Selenium rectifier
#1

I am finishing up a Zenith T724 and only need to replace the selenium rectifier.

The schematic is in Beitmens pages 182 and 183. each page is marked at the bottom.

http://www.americanradiohistory.com/Arch...n-1956.pdf

I cant see the info on the schematic but I was thinking that since there is a 22 ohm resistor between the selenium and the negative side of the ecaps that a simple diode would work?

  If I remember correctly, The anode goes to the negative side of the wires on the selenium and the diode goes to the 22 ohm resistor and on to the negative of the ecap.

Am I wrong here? Do I need a second resistor or a larger value?

Thanks for any help...

(at least it isn't a resisence line cord) Icon_lol

Icon_smile


Attached Files Image(s)
   

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6


Messages In This Thread
Zenith T724 Selenium rectifier - by OldRestorer - 01-26-2017, 12:54 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Since you stated earlier, you have a console 38-7XX.  They also had a 38-7T (table), and 38-7CS (chairside).  A very nic...GarySP — 01:18 PM
Part numbers to model cross
That I wouldn't know, but sometimes the radio document itself shows one, same as the capacitor cans' etc pinouts.morzh — 12:46 PM
Part numbers to model cross
Thank you morzh, that is exactly what I was looking for. Now , is there some where that shows pinouts for Philco power ...Jim Dutridge — 11:37 AM
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM

[-]
Who's Online
There are currently 1349 online users. [Complete List]
» 1 Member(s) | 1348 Guest(s)
Avatar

>