• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

First Zenith Stereo Console?

The 2 ends of the 100 Ohm pot go to the Cathodes of the EL84s The wiper goes to ground through a 125 ohm 2 watt resistor.
Hope this helps.
 
It seems theres are two of thses pots, one for each push-pull channel, so it is more likely an idle current balance adjustment pot for each PP pair. The cathode bypass cap could have developed a short, or somehow there was a short from the connecting wire to chassis ground at the wiper of the pot, leading to excessive current through that pair of output tubes. There also seems to have an identical cathode bias resistor on the other channel, so the two chaneels are biased separately. As such, the other channel should still be OK. As long as the power transfermer is still good, it should be an easy fix.
 
Heeeeeeeeeeeeeeeey! ! ! ! !

I'm bidding on that too :D

uuuummmm . . . . how much were YOU gonna bid ??? :scratch2:

I don't want to compete against a fellow AK'er :no:
 
According to the schematic it's a balance pot. Hope you get her running correctly.


Now, would you please make your avatar much larger??? HMMMMM???:yes:
 
JFRogers01 said:
I just want to say thanks for the samsphoto. I'm bidding on another one just like it in CT. have to go pick it up though:D[/QUO

Thats a nice one hope ya get it:yes:
Click to expand...
 
I'll agree with the other guys, definitely replace those caps. They're a problem waiting to happen. The potentiometer is also an easily replaced item, but I would check the circuit path it's in to be sure that nothing shorted and caused the variable to smoke. Could be a bad cap caused too much current flow through the variable and the magic smoke leaked out.
 
gadget73 said:
I'll agree with the other guys, definitely replace those caps. They're a problem waiting to happen. The potentiometer is also an easily replaced item, but I would check the circuit path it's in to be sure that nothing shorted and caused the variable to smoke. Could be a bad cap caused too much current flow through the variable and the magic smoke leaked out.
Click to expand...
Thats what I think. If the pot is in the cathode circuit, something probably turned the tubes full on, like a leaky coupling cap.

John
 
Heeeeeeey! It's not a magnavox

markus said:
I'm bidding on that too :D

uuuummmm . . . . how much were YOU gonna bid ??? :scratch2:

I don't want to compete against a fellow AK'er :no:
Click to expand...


I alway like two have two of somthing if your going to use vintage units. I thought I was going to get it for .99 cents till some one started bidding.lol

Look at this one that sold already. they really put a nicer TT in it buy this time http://cgi.ebay.com/zenith-stereo-c...ryZ38034QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
 
Hey !

congratulations ! you won the zenith ! :banana:

I restrained myself from bidding further :D

you'd like the zenith I have - late 60's, so not tube, but: R2R; split-spindle record changer/15 inch woofers & jensen tweeters :thmbsp:

Zenith had their sh*t together from day one :yes:
 
Hey Markus, I agree those top of the line late 60's Zeniths
are the bomb, I have one too. They are the 960 series,
mine is in the Danish Contemporary cabinet.
 
Yeeeeeeeee Haaaa

Thanks for restraining yourself :yes: I’m going to move the new one to the living room and put my Pioneer setup on top. I have been looking for a new table to put it on. I only found JUNK for $200-$300 made in CHINA JUNK JUNK JUNK!!! Now i have an American made table that will rock the house from the top to bottom if ya know what I mean :banana: I lost on the Zenith Race track radio I think they are the coolest little radio i have seen in a long time, well the 41 years the good lord has let me be here any way.

My grand father unit will still refurbished. I can take my time though.
Last year i saw one that looks just like it but it had a lift top instead of front doors.
Did zenith use Jenson speakers in these units?

Thxz J Rogers

And remember. The truth, is to know everything is an illusion!
 
hey J

If you pull the back off either of those consoles, look on the speaker basket and/or speaker rim . . .

there *should* be a 6 digit manufacturer's code such as:

220545

the first three digits denote manufacturer, the last three build date.

in this example, 220 is the code for Jensen (343 is Zenith); date code would translate to 45th week of 1955 . . .

the Zenith woofers are really nice IMO; if you're lucky, you WILL have Jensen horns in there - most likely the RP106 / 103 combo.

GOOD STUFF ! ! :thmbsp:
 
You must log in or register to reply here.
Back
Top Bottom