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

Zenith 6s321 transformer help
#1

Transformer readings:
primary 11 Ohms
secondary: 290Vac 488K Ohms
secondary 6.3Vac 1 Ohm

transformer looks a lil like it burnt
secondary 290 Vac seems high
#2

The xformer is shot, copper winding is neve in hundreds of kOhms. The only reason you are actually seeing some finite resistance is that you either hold it with your both hands, or you are measuring charred paper.
Either start rewinding or get a new one.
#3

http://www.flickr.com/photos/trog8/72297...hotostream

THX for your help
#4

What does it read from each leg of the high voltage winding to the center tap? The resistances should be close to equal, or voltages if you are applying power to the transformer. From what I know of the way brand Z did things the transformer was likely marginal to begin with, any overload would cause a smoke show even if the set was using a 5Y4 or an 80 instead of a 6X5. As Morz said the high voltage winding should measure in the 100s of Ohms not thousands, so the meter should be set on the 1000 Ohm range, if you don't get a reading then the winding is barbecued. If it's shot get a larger power transformer as a replacement if it will fit. Stupid brand Z sets!
Regards
Arran
#5

The voltages on yor dwg - are those measured ot you copied them from the sch? You can't possibly have 290V from a blown winding.
#6

i have not applied any voltage to the transformer. I'm checking my meters making sure they are ok.

I will check from the center tap to the windings. There was a wax like material all over the bottom of the transformer. About 3/16 thick.

I used the diagram with the tubes on it and a tube book to put the info on the schematics.
#7

well, if you measured indeed 488K, you can stop wasting your time and start looking for a new one.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM

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

>