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  #46  
Old 02-19-2008, 12:37 PM
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Gianni Gianni is offline
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Question ????

Quote:
Originally Posted by Gianni View Post

...What about:
- tuner,
- synchronisme separator ( only a diode? )
- sound intermediate frequency,
- extra hight voltage rectifier ( a valve? )

I have the schematic diagram of a 12 tubes Irradio set from the 50s who has a PL81 pentode as an auto-oscillator horizontal final stage.
Quote:
Originally Posted by cfranz View Post
Wow. You gotta take me with you. I'm over in Oak Park. You can keep the TVs. I'm just looking for stereo and albums.
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  #47  
Old 02-19-2008, 07:07 PM
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The GE is a C-2 chassis. Definitly a unique design. I was the first to pull the back off. Looks like rats nest inside the way it was built. Doesnt look like it will be too fun to work on with circuit boards stacked upside down and tward each other. Wiring all over the place etc. It makes sense why techs didnt want to work on them. There was a special consideration though, there is a slide out plate on the bottom of the set to gain access to the underside of the main pc boards. This set needs work in the IF section, but I think I might get lucky on this one. Typical GE, uses the strangest tube types. The 8CB11 (3rd IF) was weak as can be. Both sarkies tarzan tuner tubes were shot. Shorted 8AL9 video output tube, so that explains why I cant control the brightness of the blank raster.
What surprized me the most is that this set actually uses an octal base horizontal output tube. It uses a 26HU5 which has a full bakelite base. looks like a 6DQ5 that is used in early color sets. I have about a million NOS tubes, but dont have those odd ball types you see in the GE's.
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  #48  
Old 02-20-2008, 11:43 AM
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Quote:
Originally Posted by drh4683 View Post
I have about a million NOS tubes, but dont have those odd ball types you see in the GE's.
I might, let me know if you need any. If I don't have them, I can get them.
Mark
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  #49  
Old 02-20-2008, 11:45 AM
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Yep, the General went through the trouble of designing that pull-out bottom panel so you can get to some stuff from the bottom, but good luck accessing much from the top! One of the ones I have has some issues related, I think, to agc & video but some of the components, well, you just can't get there from here! I ended up with the tube stash of a retired GE dealer so replacements don't usually trip me up.
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  #50  
Old 02-24-2008, 09:50 AM
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Estate sale find: 2-23-08

Found a very interesting set yesterday. It was at 458 Dominion Dr., Wood Dale, IL. In a condo complex of all places! Very rarely do I come across combos. My back hurts today. It was like an engineering feat to get this set up the stairs around odd corners, out the door into the back of my truck safely. All of this had to be figured out before attempting to move this enourmous tank of a TV, otherwise, Id be stuck and have to start all over again. Forunately, the son of the original owner who passed helped me move it. This one is a 1969 Motorola Quasar works in a drawer. One very rare option, it has remote control! A motorola color set with remote is probably among the rarest of rare finds. Unfortunately it had to be a combo, so I can't keep it. A combo of this size is too big to fit anywhere in my collection so it needs to go.

Nice thing, it still works! Still has the orignal remote too. Take a look at the control panel. The intensity, hue, and volume are spring loaded toggle switches. I noticed the set didnt make any motor sounds when I adjusted the hue and color. I read up on how this system worked in the Motorola TRR-7 remote control manual. This set electronically controls those settings. A change in gain on two transistors simulates a change in resistance to the specified circuits, thus eliminating the need for a potentiometer. There is no motor drive. It uses an FET memory circuit to store a charge on a capacitor. This charge can last up to 1000 hours, so its called a "memory circuit". and was claimed the ultimate state of the art remote control system by Motorola. "No gongs chimes or other annoying noises" as claimed by motorola. Its still a motor drive VHF tuner though.

Never seen anything like it. Very unique set. TS-915 chassis, so this one is 100% solid state. All parts are dated "11M69"
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  #51  
Old 02-24-2008, 10:54 AM
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thats a find!! never saw one like that. post pics in operation!!!
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  #52  
Old 02-24-2008, 11:21 AM
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kx250rider kx250rider is offline
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You know; I don't think I've ever seen a Quasar combo!! I've seen the 23" Motorola tube set in combos, but no solid state sets. Not even the early Quasar hybrid.

What's even MORE intriguing is that the "QUASAR" badge appears to be glued onto the bezel next to "MOTOROLA", which is screen-printed. Perhaps they added the Quasar name mid-production run?

Nice save!

Charles
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  #53  
Old 02-24-2008, 02:20 PM
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Quote:
Originally Posted by kx250rider View Post
What's even MORE intriguing is that the "QUASAR" badge appears to be glued onto the bezel next to "MOTOROLA", which is screen-printed. Perhaps they added the Quasar name mid-production run?
I wondered that too. Also, the Quasar name is not in the "correct" typeface either, which further suggests that this might have been made right when Motorola was introducing the "Quasar" name.

I've never seen one of those "Works-in-a-Drawer" sets with remote before-- neat!
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  #54  
Old 02-25-2008, 01:26 AM
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truetone36 truetone36 is offline
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I've seen only one of these before. A friend in Arkansas had one in his living room that he'd had since it was new. Had all the paperwork to it and everything. It worked fine, too. When he went to a nursing home (he was 87)
his daughter was going to throw it out, fortunately I was able to go get it before the trash man got it, and I found it a good home. It's now in the living room of my ex-boss and is his daily watcher.


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  #55  
Old 02-25-2008, 11:45 AM
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I had a standalone "works in a drawer" set once, it was pretty neat. I got rid of it because it had a ruined cabinet. You mentioned you can't keep it, I like this one, call me if you can't find a new home for it.
Mark
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  #56  
Old 02-26-2008, 08:39 PM
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1977 Zenith Chromacolor II
A Very Modern Zenith
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  #57  
Old 03-08-2008, 06:06 PM
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drh4683 drh4683 is offline
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Estate sale find: 3-8-08

Went to a few more sales this weekend and found a couple sets. Picked up a sears table set from around '75. Sale at 499 E. Park Ave, Elmhurst, IL. Its solid state, but looks much like a tube type set and built like one too. Very heavy. Its a japanese made set. I think its a sanyo based on the model number. Got it for $7.50 half off.
The second to last sale turned up a nice Zenith. Sale at 5314 Madison Ave, Skokie, IL. Its a '66 model 8308 with the swivel base. Uses the 25NC38 chassis. I wish i knew more about "central service company" Its a big tag on back of almost every Zenith TV I find with a map of the sales/service locations thoughout chicago area. They are gone now, but must have been some huge electronics dealer back then that everyone went to. Based on the amount of vintage stuff I find, most of it has this tag on the back. Almost like the "best buy" of the 1960's. It was plugged in. I asked how much it was and the lady tells I wont want it as it doesnt work. Supposedly they turned it on and it made some noise then they shut it off and left it alone. They said I could have it for whatever I thought was a fair price. So I took it for $10.00. I turned it on and as you would expect, it worked. Some fine tuning and it should be good as new. Obviously it has a new RCA colorama CRT installed with no signs of cataracts. The tube is dated 22-70, but was installed in September 1973 according to the repair tag in the set. the orignal owner has a list of the repairs over its life up until 1979 on a list taped onto the back of the TV, including what was wrong and what was done to repair it. This TV did pretty good. It only had a horizontal output tube, HV rectifier, CRT and the dial lamps replaced in its life at different times. No serious troubles, assuming this list included all repairs. Its a cheapie cabinet, the composite photofinish sides and top. The swivel base assembly is of high quality with a ball bearing swivel plate.
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  #58  
Old 03-09-2008, 08:39 PM
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Nice Zenith! I like it when they tell you to "make a fair price". Great save!
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  #59  
Old 03-09-2008, 09:03 PM
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Nice sets! That Zenith has the exact control layout as my Uncle's set that I destroyed when I was a kid. The cabinet and CRT is still buried in the basement. That sears looks like a Sanyo or Toshiba. Is the cabinet metal or plastic? I used to see a lot of Sanyo made Sears sets in metal cabinets.

I too like it when they tell you to "make a fair price". The only problem is when your idea of "fair price" and theirs are two different things.
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  #60  
Old 04-06-2008, 03:36 PM
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drh4683 drh4683 is offline
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Estate sale find: 4-5-08

Picked up another 4 tuber. Found at a sale at 355 W. Harrison St. in Elmhurst. Its a later one, model E4001W from 1974. Its the plain basic TV, no AFC or chromatic button features. Has the plain super video range VHF tuner, and basic non-lit tuning dials. Uses the 19DC22 chassis. This is how I remember these TVs as a kid, kind of dirty and from a smoker home but not beat and destroyed. Once the TV gets warm, it emits that stale smoke smell. I remember this well from when Id bring these home back in the early to mid 90's. Smelling the stale smoke while looking through the back cover seeing the tube filiments light up through the layers of dust. Good memories! Has fair use, but still works well. Trippler replaced at one time with the ECG replacement. TV was sitting in the basement on a shelf with some office supplies.
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