Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives :: Books
Support This Site: Contributors :: Advertise


It is currently May Thu 24, 2018 8:39 pm


All times are UTC [ DST ]





Post New Topic Post Reply  [ 35 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 4:23 am 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Hello all, I am still dabbling with some radios and televisions when I find the time. Recently Samuel33 decided to past this set on and I found it and brought it home. I love the looks of this set on its stand and hope to get it back to working condition. So far I have downloaded the Rider's from Radiomuseum https://www.radiomuseum.org/r/general_el_806.html and taken lots of pics. Also I have capacitors on the way. My knowledge is limited so I know I will need your help before I am done and thank you in advance if you offer any.

ImageGE806 on Flickr
ImageGE806on Flickr
ImageGE806 on Flickr
ImageGE806 on Flickr
ImageGE806 on Flickr

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 6:11 am 
Member

Joined: May Sun 07, 2017 11:35 am
Posts: 253
There is good general advice here:

http://www.earlytelevision.org/restoration_advice.html

Only thing I don't agree with in this document is the indiscriminate use of water for cleaning. Old electronic gear used insulation that is hygroscopic and you can lose an irreplaceable transformer if you are unlucky. Stick to alcohol - no, for the TV!


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 6:35 am 
Member
User avatar

Joined: Nov Thu 11, 2010 6:03 pm
Posts: 670
Location: Pewaukee, WI
Chassis is deep and cramped until enough of the old caps are changed....A bit of a test of dexterity.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 6:43 am 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Electronic Memory wrote:
Chassis is deep and cramped until enough of the old caps are changed....A bit of a test of dexterity.

Yes I have not seen the caps strung together like these before. Will be a bit of a challenge.
Image[url=https://flic.kr/p/22t3CLu]
Image[url=https://flic.kr/p/CSzQGx]

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 6:48 am 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Chassis pics
Image[url=https://flic.kr/p/22t3CS1]
Image[url=https://flic.kr/p/CSzQFk]
Image[url=https://flic.kr/p/22t3CPA]
Image[url=https://flic.kr/p/22t3CPq]
Image[url=https://flic.kr/p/CSzQB2]

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 11:39 am 
Member
User avatar

Joined: Feb Thu 17, 2011 11:27 pm
Posts: 11082
Location: Long Island, N.Y.
Just wanted to wish you luck on the resto. That is an exceptionally nice example of that model GE. Having the original winged-legged table is the icing on the cake! :D I have one of these myself that was electronically restored and it's one of my most reliable players. I've enjoyed it for years now with no issues.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 4:33 pm 
Moderator

Joined: Jan Thu 01, 1970 1:00 am
Posts: 26366
Location: Detroit, MI USA
If you work slowly and patiently, it's not impossible but the unusual construction of these models with such a deep chassis and components mounted on terminal boards makes it one of the more difficult sets to work on. It has a lot of electrolytics.......you can add small terminal strips where the original ones were located on the side of the chassis in order to easily be able to mount and connect to the new ones. I have also found more than a few leaky mica caps in those GE's in the sync and horiz circuits. Start out by taping a square of cardboard over the speaker cone to protect it!

_________________
Dennis

Experience is what you gain when the results aren't what you were expecting.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 4:46 pm 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1624
Location: Lafayette, CO
The first thing l would do is to put cardboard over the speaker so you don't poke a hole in it. I ran across a 800 which had only the rectifiers and picture tube replaced. It turned out real nice, l'm sure yours will, too. Craig


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Fri 15, 2017 9:59 pm 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Thanks everyone good to hear they are a nice set when working. I do already have the string of big caps lose from chassis only and 4 terminal strips mounted. I won't have all the new capacitors till Monday but will start to replace the ones I have on hand. Some of the caps might be tight to get at but it looks easier than the 59 RCA portable I tried to recap.

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Mon 18, 2017 4:23 am 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Well thanks to FedEx trying to keep up with the Christmas rush they were working yesterday and I got my capacitors early. I have all the electrolytics replaced but one 1 mf. Here is what I have right now with no signal input.
Image[url=https://flic.kr/p/22B8EWc]

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Mon 18, 2017 5:13 am 
Member
User avatar

Joined: Nov Thu 11, 2010 6:03 pm
Posts: 670
Location: Pewaukee, WI
Looks good you may be signal plus some knob twists away from perfect operation...Just as mine was after the recap.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Tue 19, 2017 4:51 am 
Member
User avatar

Joined: Feb Thu 17, 2011 11:27 pm
Posts: 11082
Location: Long Island, N.Y.
Electronic Memory wrote:
Looks good you may be signal plus some knob twists away from perfect operation...Just as mine was after the recap.

May I add that my example is very sensitive to front control adjustments, so tweak it carefully. Pre-1950 sets are finicky and usually require some patience to properly adjust for optimum video and audio.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Tue 19, 2017 3:02 pm 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Well I have the majority of the paper capacitors replaced and am getting good sound and even video, although not right yet. It is better in person than this pic.
Image[url=https://flic.kr/p/D21KnB]

As I was recapping I realized there is one cap that is not hooked up at one end, looks like it might never have been. Anyone know if this cap is original to these sets? I should have gotten the Photofact, it would show this, but all I have is the Riders.
Image[url=https://flic.kr/p/D21Y7e]

The white piece in this pic is a capacitor isn't it?
Image[url=https://flic.kr/p/21jr2at]

And my final question for now. The two white pieces with stripes are capacitors?
Image[url=https://flic.kr/p/22Eg1FF]

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Tue 19, 2017 6:11 pm 
Member
User avatar

Joined: Nov Thu 11, 2010 6:03 pm
Posts: 670
Location: Pewaukee, WI
The cap with loose lead you will want to see where the connected lead connects to, find that point on the schematic, then check to see if there is a similar value cap connected to that point/wire on the schematic.

The pure white part IIRC is a ceramic power resistor, and was good on my set (again trace the schematic and check).

The banded white tubes are capacitors .47uF 200V and .01uF 600V. You have seen modern caps that encode .01uF as 103 before, right? These striped caps (bumblebees) take that notation and color encode it (same color code as resistors). 1st 3 bands capacitance, 4th tolerance, the 5th band is voltage in hundreds.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Tue 19, 2017 6:49 pm 
Moderator

Joined: Jan Thu 01, 1970 1:00 am
Posts: 26366
Location: Detroit, MI USA
That Sprague .01 with yellow writing may have been added years ago by someone trying to get more width, it was a common trick to put a cap of around that value across the width coil, which is where yours appears to be located.

IIRC that style of cap wasn't yet available at the time this set was built, it's a few years newer.

_________________
Dennis

Experience is what you gain when the results aren't what you were expecting.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Tue 19, 2017 6:52 pm 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Thanks, I was pretty sure the white banded ones were capacitors but wanted to be sure they weren't something special. I will have to study the wiring diagrham better and find were that lose cap is at.

Thank you again!

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Tue 19, 2017 6:55 pm 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
Mr. Detrola wrote:
That Sprague .01 with yellow writing may have been added years ago by someone trying to get more width, it was a common trick to put a cap of around that value across the width coil, which is where yours appears to be located.

IIRC that style of cap wasn't yet available at the time this set was built, it's a few years newer.


Thanks for the reply, there were a few other caps this style, may have been replaced before as they did look too new for the set. I will leave the one lose for now and finish replacing the others.

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Sat 23, 2017 4:13 am 
Member

Joined: Jan Fri 17, 2014 7:23 am
Posts: 232
Location: Central Illinois
I missed this cap, it is near the flyback transformer. I am not sure I read its value right. I see .0022 @ 10 % @ 4,600 volt? I don't think I have the voltage right do I?
Image[url=https://flic.kr/p/EDktDS]
Image[url=https://flic.kr/p/EDmqJG]

_________________
I don't own too much old stuff, I just temporarily take care of it for it's next owner.


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Sat 23, 2017 6:31 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 9909
Location: Redlands CA
Frequenceme wrote:
I missed this cap, it is near the flyback transformer. I am not sure I read its value right. I see .0022 @ 10 % @ 4,600 volt? I don't think I have the voltage right do I?



It looks like Orange, Orange, Red? That would be .003, then Blue would be the tolerance, then Yellow and Black would be a 4 and a Zero x 100 V or 400 volts.

If it is Red Red Red than yes, .002

Image


Top
 Profile  
 
 Post subject: Re: GE806 1949 with stand
PostPosted: Dec Sat 23, 2017 6:00 pm 
Moderator

Joined: Jan Thu 01, 1970 1:00 am
Posts: 26366
Location: Detroit, MI USA
Two color bands for voltage means it's 1000 volts or higher since the chart says anything above 900, and there were no standard voltages for those caps between 901 and 999 volts. I wonder if there is some discoloration here, or poor color reproduction? It's .0022 @ probably 1000 volts and that stripe we see as yellow in the photo is actually brown.

It's C326 on the Rider schematic, connected in the plate lead of the horizontal output tube. Because it has a resistor in parallel with it, even if this cap were leaky it wouldn't necessarily affect operation. I have seen a few of them explode and catch fire though, which happens if the parallel resistor opens. Since very few TV's had that R-C network in the plate lead, GE engineers must have chosen to include it to help reduce some problems they were having with unwanted radiation or oscillation such as Barkhausen.

_________________
Dennis

Experience is what you gain when the results aren't what you were expecting.


Top
 Profile  
 
Post New Topic Post Reply  [ 35 posts ]  Moderators: 7jp4-guy, Mr. Detrola Go to page 1, 2  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: Kevin Kuehn, rdusel and 4 guests



Search for:
Jump to:  
























Privacy Policy :: Powered by phpBB