My First Vintage TV..... - Page 2 - Videokarma.org TV - Video

krimney · #16 01-16-2005, 05:55 PM

I CAN'T be hooked. I have no room for TVs. My garage is full of audio gear, I've got my closet packed with 6 pair of speakers, the kids rooms have a couple sets each, 3 in the LR, a couple in the Dr and a set in the MBR. My GF says NO to any more TVs'

Yes the pic on this one is good. Good enough that I've put it in the LR as a daily user.

drh4683 · #17 01-16-2005, 08:35 PM

Great find! The 20CC50 is from 1972 and is an excellent chassis. That chassis uses an IC for the color demodulator. Its always a good idea to check tubes even if the set appears to be ok. The 6Z10 audio output is normally a weak tube when found on a zenith, replace it and you will have a better sounding set.
Im glad another set like this was saved! Im sure you will take care of it, they deserve good homes. Those sets were the best in the world! (and still are!)

asynchronousman · #18 01-16-2005, 08:38 PM

Quote:

Originally Posted by krimney

The unit had one of those little cylinders attached with the cable end on one end and two spade termainals on the other. The UHF strips were attached to the VHF antenna. There is also a UHF tuner terminal. I've got the cable running into my VHS. What now??

I also have a high pitched squeal that is just audible enough to be annoying. It seems to come and go.

It looks like the side panels are plastic so I guess the unit isn't that old.

Here are some pics.

You use a simple antenna distribution box, like RS used to carry under the Archer name. It has a center pair for input 300 ohm twinlead and 4 outputs the same. It is unpowered and usually had a piece of adhesive tape on it to attach it anywhere. All you need now is a 75 to 300 ohm balun to go in and you can run wires from two of the outputs for U and VHF or spend a few dollars more for a splitter instead with 300 ohm outputs. Depends on what you have lying around.

krimney · #19 01-16-2005, 08:42 PM

It seems to come and go and can be irritating if the volume isn't turned up loud. I have no TV repair skills(unless they are well hidden) and NO test gear other than a Realistic Multi meter.

If I decided to part with this unit , I know it would be preferable to keep it complete. What are these things worth? Whole or parts??

Sandy G · #20 01-16-2005, 09:41 PM

Ahh, but my dear Ken, You CAN get hooked on TeeVees ! You still got PLENTY o' room! Specialise in the "teeny-tiny" sets, such as Symphonic, Sinclair, the Panasonic 1.5" sets from the early '80s & the slighty larger 2" "Emerson"-style sets of slightly later. Whole bunch of those little guys don't take up hardly any room, & women generally find 'em CUU-UUUTE ! The "Lollipop" Sonys of the same era are collectable. Best things about these guys is lotsa times they work, & they're still relatively cheap,except the 1984 1.5 color Panasonic CT-101. Yes, I think the boffins at Matshushita must have known about the "CT-100" designation.Then there's the teeniest Trintron, the 1982 KV-4000s. Anyhow, you can still get into the wonderful world of One-Eyed-Monster collecting if you want... But be careful-one little guy gets lonely, so you gotta get a second, then you really want a micro color..just GOTTA have it...<grin>-Sandy G.

asynchronousman · #21 01-16-2005, 10:00 PM

Quote:

Originally Posted by krimney

It seems to come and go and can be irritating if the volume isn't turned up loud. I have no TV repair skills(unless they are well hidden) and NO test gear other than a Realistic Multi meter.

If I decided to part with this unit , I know it would be preferable to keep it complete. What are these things worth? Whole or parts??

It's something not being properly filtered from the video stage, that's my guess. Old capacitors and an out-of-spec tube are probably the culprit, but I'm not a TV repairman either. Use the VCR and one of those godawful integrateds (like the one you had on top of it

) with some of those troublesome speakers you pile up

until you can figure it out.

If you ever want a SMALL TV (A REAL ONE) I have a National Panasonic AN609D 7" you can figure out. Robust CRT but needs caps and a diode or two in the PS (overvoltage to the heaters). It's an Instant On set so I could NOT let it run warm all the time like that, but it had a great picture and it's bright blue, as Matsushita was so famous for never making a dull set.

Send money, guns and lawyers and we'll smuggle it into Diefendorfer's garage without a further charge. (SP sorry I wish Bush was the other half of Anheuser some daze)..

PS somebody tell me if ~~~THIS~~~ National has anything go to with the Panasonic namesake?

krimney · #22 01-16-2005, 11:33 PM

making the squeal. It is there even when the volume is turned all the way down. The high pitched squel is emminating(sp) from within the TV, not from the speaker. The sound from the TV speaker is fine.

Steve....It's not an Integrated, it is a very nice Optonica receiver that is MINT with original manual AND Schematics. Only problem is it sometimes jumps in/out of stereo. Nice sound and a solid 85wpc.

Sandy....I've seen a few 4-6 inch tv's around lately in thrift stores etc. Some look like they also have a radio built in. may have been B+W. I am seeing a fair number of Sony Trinitrons around too, apparently a very good TV. If fixing TVs were easier than fixing audio components I may be inclined to look more for TVs. I think that's whay I've got so many speakers...they are relatively easy to repair or to just repalce a bad component. All I need is a multimeter and I'm good to go.

asynchronousman · #23 01-16-2005, 11:41 PM

Take it to the repairman then! It's not supposed to do that, but it doesn't sound fatal to the life of the set. STILL...it's not a good thing to operate it like that. Do that and ENJOY it!

asynchronousman · #24 01-17-2005, 12:16 AM

Quote:

Originally Posted by krimney

making the squeal. It is there even when the volume is turned all the way down. The high pitched squel is emminating(sp) from within the TV, not from the speaker. The sound from the TV speaker is fine.

Steve....It's not an Integrated, it is a very nice Optonica receiver that is MINT with original manual AND Schematics. Only problem is it sometimes jumps in/out of stereo. Nice sound and a solid 85wpc.

Can you turn the muting off, and what are you using for an antenna? Does it only cut out on one or two signals? How is your antenna oriented in relation to the tall buildings in downtown Calgary?

Do you have a TV amplifier such as a CHANNEL MASTER, JERROLD or I even saw a nice Thomson made RCA once! A nice one with a rating of -22 or better and "90 mi+ urban fringe" VHF antenna should do the trick in your part of Alberta, and you can put it on an A/B swtich or an variable pot if you'd wish. I have 6 sets TV/FM/UHF scanners running at times and right now I wouldn't need cable to get 23 signals on TV alone (7 are digital), including two new in the last three months (!!!KKJB 39 is testing as of this week!!!)

I wish I could go to your place and build you a decent antenna system that doesn't rely on cable TV

Charlie · #25 01-17-2005, 12:51 AM

I wonder if the squealing you're speaking of is the flyback transformer? Aren't they sometimes known for making a squeally-ringing sound... some more than others? I have '72 Zenith black & white set that makes an more than obvious high-pitch noise... moreso than others. It's done that ever since I got the set several years ago. It does, however, remain constant. I think you mentioned that yours comes and goes.

Seems I recall reading somewhere that shoving a piece of sturdy paper in the middle of the flyback can dampen the squeal. Anyone else hear of this? Am I on the right track here?

#26 01-17-2005, 03:19 AM

I think the golden cheroot goes to Charlie......flybacks seem to be pretty notorious on both Zeniths and RCAs.....at least in my experience. My hearing had big chunks of missing frequencies but I do hear some that are outside of the normal higher range due to a fused bone structure (or sumpthin like that).....anywho, I can actually hear some ultrasonic motion detectors in alarm systems. Because of this I drove RCA crazy with a new set I bought in the early 80's as it wouldn't stop squealing no matter how many flybacks they changed under warranty.

One repair shop thought they would put ME to the test and see if I was just a crack pot.....with the set on the bench and me just outside of the door so that I couldn't see it they'd ask me when I could hear it as they turned it on and off......of course they tried to fool me a couple of times but I nailed it 100% Shut them the hell up! And then there was the time I almost passed out from all the motion detectors in the Gold room at the old San Francisco Mint. Walked thru the doorway and nearly hit the floor from the instant dizziness that overwhelmed me. Shoulda sued da bums.

Anthony

Chad Hauris · #27 01-17-2005, 06:47 AM

I vote for flyback vibration. My hearing doesn't really extend very well up to 15,750 hz (horizontal sweep frequency) so I can't hear it usually unless it is REALLY loud (like on a few RCA's.)

bgadow · #28 01-17-2005, 12:28 PM

I see on the portacolor I'm working on (replacing the flyback) it has a two piece affair with just a little layer of (rotten) foam between. No wonder those things ring! We have a 13" Samsung in the bedroom that works great but has a rather loud (but intermittent) flyback squeal. I would think there would be some way to calm it down, either with paper like was mentioned or something similiar. Just need to remember, very high voltage there, steer clear when the set is on & use some material which is not conductive in the least.

Carmine · #29 01-17-2005, 12:37 PM

Wood shim.

krimney · #30 01-17-2005, 12:42 PM

Where do I find it, and do I just need to jam somehting beside it to reduce the movement of it? Remember, this is my first TV so about all I can ID inside it is the picture tube

I'll be sure to unplu it before I dig into it though...but doesn't something inside hold a charge for a long time even after it's unplugged?