Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Early Color Television

We appreciate your help

in keeping this site going.
Reply
 
Thread Tools Display Modes
  #1  
Old 01-01-2016, 08:04 PM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
Admiral C322C16 Canadian Set

First pictures of the set rescued from Ontario by Tim, Al and myself.




Chassis nudes.





Cabinet is missing the speaker, and the only things I know about the chassis so far is I have horizontal and vertical waveforms at both output tubes, something has been done to the focus rectifier circuit, and there's been a fair amount of work done to it. There's new high quality flame proof resistors installed in places, and new caps tacked in where the factory cans connect. I don't know what that means for the restoration, but hopefully it will be easy as long as the PO didn't make any errors in parts replacement. At least the CRT is good, that alone was worth the price of admission.
__________________
Evolution...
Reply With Quote
  #2  
Old 01-01-2016, 08:07 PM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
Forgot to add, the chassis label on the back says it's a C223A3X. Can't find anything on that number anywhere, no idea why it says that. Someone crossed it out and put the correct one above it. lol The chassis is in fact a 29Z1, run 18. Sams only covers runs 1 thru 17, wonder if I need a better schematic?
__________________
Evolution...
Reply With Quote
  #3  
Old 01-01-2016, 08:52 PM
Jon A.'s Avatar
Jon A. Jon A. is offline
Don't mess with Esther.
 
Join Date: Jun 2013
Location: Canada
Posts: 4,267
Roundies must be rare in Canada, especially non-RCA units. We didn't get color broadcasts until 1966, only places near the border could get them before that.

Last edited by Jon A.; 01-01-2016 at 08:57 PM.
Reply With Quote
  #4  
Old 01-02-2016, 06:13 PM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
This was made by Admiral in Canada, apparently they had a plant not too far from where the set was found.

Ran up the chassis, here's what I have currently:

Had no HV despite a wave form being present on the horizontal output tube's grid the day before. Pulled the tube back out to check, it's still there so something is wrong. Turned out someone had stuck a 6DQ5 in there where a 6CB5 should be, and though they are electrical subs for each other you would have to swap some pins around. That hadn't been done, so I put a 6CB5 in it and HV came up.

HV is low with the regulator tube installed. Without it I'm getting around 21.5kv, installed it droops to around 16kv and I get a nice bright blue glow from the 6BK4's tubular plate. The resistors that control the 6BK4 grid are in tolerance, so I'm installing a 1-meg HV adjust pot in the back of the chassis. It goes between the boost source and dropping resistors on the grid, giving adjustable grid potential. Hopefully once I'm done with that, I'll have stable and adjustable high voltage available on the 3A3's cup.

Focus circuit was wired incorrectly. There was a part I couldn't identify (probably a megohm range resistor) which got removed, and I made the circuit reflect what Sams has. Hope focus voltage falls in range. Installed a new 1V2, previously there wasn't one there.
__________________
Evolution...
Reply With Quote
  #5  
Old 01-02-2016, 06:19 PM
Kamakiri's Avatar
Kamakiri Kamakiri is offline
Administrator
 
Join Date: Jun 2002
Location: Buffalo, New York
Posts: 5,109
Port Credit was the next town over from Mississauga. I ended up getting there about a half hour early to pick it up, so I took a drive down the street and ended up in downtown Port Credit.

Exciting to watch this set start to come to life
__________________
"Restoring a tube TV is like going to war. A color one is like a land war in Asia."
Reply With Quote
Audiokarma
  #6  
Old 01-02-2016, 06:30 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,762
Quote:
Originally Posted by miniman82 View Post
Focus circuit was wired incorrectly. There was a part I couldn't identify (probably a megohm range resistor) which got removed, and I made the circuit reflect what Sams has. Hope focus voltage falls in range. Installed a new 1V2, previously there wasn't one there.
It is possible that mystery part could have been a SS focus rectifier.....I've seen focus tubes clipped out for them before.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote
  #7  
Old 01-02-2016, 09:19 PM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
Possible. It did have a '+' on one end of it, but I couldn't get a reading out of it with my meter in diode check mode so out it came. Seems this is gonna be the easiest resto ever...




Got a nice bright raster, and HV doesn't droop even with the brightness control at max. There is a slight blooming though, and I see some drive lines. I'll run through the horizontal setup procedure, purity and convergence, then throw some nice patterns up.
__________________
Evolution...
Reply With Quote
  #8  
Old 01-03-2016, 02:38 AM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,762
Quote:
Originally Posted by miniman82 View Post
Possible. It did have a '+' on one end of it, but I couldn't get a reading out of it with my meter in diode check mode so out it came. Seems this is gonna be the easiest resto ever...

Got a nice bright raster, and HV doesn't droop even with the brightness control at max. There is a slight blooming though, and I see some drive lines. I'll run through the horizontal setup procedure, purity and convergence, then throw some nice patterns up.
That is almost certainly a focus rectifier stick....IIRC I tested a good one with a diode tester and got an open circuit during some work a few months back. They are selenium based IIRC and need to have a large (enough to not be measurable on pedestrian modern diode testers) forward voltage drop in order to have sufficiently high PIV to handle focus rectifier duty.

That set looks like it is well on it's way down the right track! Nice work.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote
  #9  
Old 01-03-2016, 12:22 PM
zeno's Avatar
zeno zeno is offline
VideoKarma Member
 
Join Date: Mar 2013
Location: New Hampshire
Posts: 4,672
If the mystery part is the white thing its a focus stick.
Seen the focus tube, socket & filament winding eliminated a
few times. Sockets were common to burn up.
If you take apart a focus or HV stick its made up with
a stack of disc shaped diodes, many of them..........

73 Zeno
Reply With Quote
  #10  
Old 01-03-2016, 05:17 PM
Username1's Avatar
Username1 Username1 is offline
Not sure how I got here.
 
Join Date: Dec 2009
Location: Orange County NY
Posts: 3,584
Quote:
Originally Posted by zeno View Post
If the mystery part is the white thing its a focus stick.
Seen the focus tube, socket & filament winding eliminated a
few times. Sockets were common to burn up.
If you take apart a focus or HV stick its made up with
a stack of disc shaped diodes, many of them..........

73 Zeno
That is why they don't test on a new meter with diode test.
Several rectifier wafers in series with a spring at one end.....

.7v + .7v + .7v + .7v ........ 10 of 'em ??

They don't test well analog either.....
They do have a + on one end usually...

.
__________________
Yes you can call me "Squirrel boy"
Reply With Quote
Audiokarma
  #11  
Old 01-04-2016, 04:49 AM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
You can see it in the under chassis shot, it's the white thing near the striped resistor in the upper left of the shot.
__________________
Evolution...
Reply With Quote
  #12  
Old 01-05-2016, 12:12 AM
zenithfan1's Avatar
zenithfan1 zenithfan1 is offline
Mark
 
Join Date: Jan 2008
Location: Kenosha, Wisconsin
Posts: 4,211
Awesome score Nick!
__________________
My TV page and YouTube channel
Kyocera R-661, Yamaha RX-V2200
National Panasonic SA-5800
Sansui 1000a, 1000, SAX-200, 5050, 9090DB, 881, SR-636, SC-3000, AT-20
Pioneer SX-939, ER-420, SM-B201
Motorola SK77W-2Z tube console
McIntosh MC2205, C26
Reply With Quote
  #13  
Old 01-05-2016, 04:59 PM
miniman82's Avatar
miniman82 miniman82 is offline
First Light: 1952-2011
 
Join Date: Jun 2009
Location: Great Mills, MD
Posts: 4,159
Thanks Mark, maybe we will get to watch a movie on it sometime. I'm moving to Maryland in a few months and il leave a guest room, maybe you can stay a while.
__________________
Evolution...
Reply With Quote
  #14  
Old 01-05-2016, 07:51 PM
tvcollector's Avatar
tvcollector tvcollector is offline
VideoKarma Member
 
Join Date: Sep 2010
Location: So. Florida
Posts: 1,613
Why is the bezel oval?
__________________
Looking for an all tube or hybrid color TV set from the late 1960s, early 1970s that's in a steal cabinet..
Reply With Quote
  #15  
Old 01-05-2016, 08:16 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 14,762
Quote:
Originally Posted by tvcollector View Post
Why is the bezel oval?
Because the digital photo is somehow stretched vertically...It looks like a normal roundy in person. I've seen in person 4-5 of the 8-9 of these known to exist in the last 6 months...
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote
Audiokarma
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 08:33 PM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.