Turns out we got a remote roundie! Hmmmm...
 

As mentioned on the other thread the sellers unexpectedly at the last minute were able to arrange a meet up for delivery. We're pleased and concerned at the same time, because it turns out it's a remote set and we weren't smart enough to ask that question in the first place! They seemed pretty rare back in our days of youth so it never occurred to us that it might be!

So now we're trying to find out what Space Command came with chassis 25MC33? The prices for those on eBay range from not too bad to frightening!

Here's some pics of our new baby! She'll come out of the cold and into the house as soon as our big strong son can help us out!

roundie pics
 

home at last:

pic2
 

sorry something went wrong trying to upload them all at once:

more
 

pics

remote unit??
 

inside of the cabinet on top right, behind the control panel in front:

Good looking set. The 25MC33 is a great chassis. If the tube is strong, you should get a great picture out of it. Don’t fret over the lack of UHF. Yu will likely be using a converter box or other signal source which outputs on VHF. since the digital transition, the lack of UHF tuning is not the drawback it once was. I would not worry about finding a remote until the chassis and cabinet are fully restored then you can add that feature last.

"cataract" and front controls
 

hope the "cataract" isn't too bad, and what does "all channel" mean?

Before you worry about the remote, take the back off, post a pic and show us that it actually has the remote receiver chassis. Zenith made sets with pushbutton motorized tuning that were NOT remote ready. If you don't have the remote receiver chassis in the set then having the remote will not do you any good.

That is the zenith style cataract, not hard to fix. I had a video on my photobucket account, but after photobucket went ransom mode I can't play it, or embed it here...http://s1095.photobucket.com/user/El...?sort=3&page=1

All channel usually means VHF and UHF tuners built in. My Zenith roundie has All Channel on the control panel too.

Where are the channel numbers? Most Zeniths of this era have a lighted channel indicator window either on the tuning knob or on the control panel. From the front, this does not look like motorized tuning. We need to see complete pictures of the cabinet interior to determine exactly what you have.

That is the tuner cluster. which includes the tuner motor. It is not the remote chassis. Can you take a pic that shows everything in the back in one shot?...Preferably center the camera on the CRT base then walk back until all is in the frame. The remote chassis on Zenith color sets of the era is usually about the size of the HV cage and black.

All channel means it should have UHF.

oh, so it does have UHF then. Though as mentioned elsewhere that might not be all that important anymore, with the converter boxes?

It has a bigger oval speaker on one side, smaller on the other... well it does say H-Fi on the front panel... is that all there is to it? lol!

I see two flat lead wires coming from the aerial connection terminals on the back. This would indicate the UHF tuner is installed.

The Hi-Fi version includes a larger speaker and bass and treble controls in lieu of the tone control on the standard version. The controls are located just above the door on the lower front panel.

See this picture of the tuner cluster? See the windings of the motor pictured in it, and the motorized tuning star wheel? It is a motorized VHF tuning set...There is no doubt about that. If you look at the bright spot above the speaker there are two semi-transparent wheels with the channels labeled on them. Those would be backlit by dial lamps and shine through the front panel...I've seen Zeniths that used that scheme before.
http://videokarma.org/attachment.php...7&d=1516479593

here's some clearer pictures of the "innards"
 

including the chassis and inside stuff:

It looks like it is not a remote set as I don’t see the large remote chassis.

Is NOT a remote set, just motorized VHF tuner. It does have a UHF
tuner. Even if it were hidden the green antenna wires are a give away.
Zenith always used brown for VHF & green for UHF.
You can see the dial lamps & numbers disks also. The mystery is
where the hell do the numbers shine through ????
Maybe its got the wrong knobs ? When I get chance I will look
in the line folders......

73 Zeno:smoke:
LFOD !

I see a rectangular cutout in the metal control panel for the numbers but it is covered up by the wood grain decal that says color on the front panel. I really wonder if this set has the correct knobs for the volume and tuning. Shouldn’t the volume knob have the tri-color logo?

I don't see a remote chassis (though IIRC it was usually hung from the top back of the cabinet which is not pictured), and lack of text reading "Space Command" on the front leads me to believe it is a Non-remote set with motorized tuning.

It will shine through that slightly translucent grain. They would not have included internal number wheels if they were going to use numbered knobs.

I would like to see it on to know how well those channel numbers show up through the decal. It is a neat idea, though. My set has the channel numbers viewed through the center of the tuning knob.

I have an older (probably from a 29KC20) power tuning tuner cluster and it's bezel in my spare tuners box. It has that plastic wood grain and IIRC I once powered the dial lamps and found it was viewable in normal room lighting...It is kind of unexpected and cool to see it shine through when you don't expect it to.

It's probably a good thing it's not a remote model; less complicated and less to go wrong! With with the motorized tune, how do you change the channel, is there an Up and Down button somewhere? There's nothing visible on the control panel.

The tuning knob is solid, there doesn't seem to be a clear window for the channel number to shine through. So it would come through the wood-grain? That seems kind of odd!

We're kind of scared to plug it in and turn it on, my hubby's experience is limited to minor car re-wiring, a few old stereos and clock radios with tubes! As they say - first do no harm!

Just an FYI, no vitriol intended...

Sue, you get some leeway here because you are new, but it's bad procedure to start so many threads about the same TV in the same forum.

It makes it terribly difficult to keep track of what happens to the set between when you first saw it until we finally get you through restoring it to a functioning and reliable TV. It causes us to miss what you did in earlier posts, which may be vital to help you in later ones. For example you have now placed pictures of the set in a thread. Later we might have to locate them again to help you with a future problem. All in one thread makes them easy to find. It's to your advantage to keep the story flowing smoothly.

To the moderators: Any chance one of you could come and combine 4 of these threads? The other two in introductions and classifieds are indeed separate.

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Oh I'm sorry, I'm new to this! Can someone please put everything all together as has been suggested? it does make sense in this case. The vintage home an car sites are very differently structured! Henceforth I will just continue on with this thread then.

Probable that the front VHF knob is the VHF channel up/down motor rocker switch. If it moves a few degrees one way or the other and no more, and also wants to return to one center position then that is your motor control. The back knob is an auxiliary manual VHF knob. Go with the back VHF knob for now. The motor shaft extends (and turns) when powered to mesh gears with the VHF tuner shaft (much like a car's starter motor). The shaft is greased and the grease tends to turn to glue...If you do not free and lube the motor shaft before powering the motor then the motor won't turn and will stay powered overheating it and risking damage...

Since the chassis was powered recently to take that screenshot it should be safe to power again for monitored tests shorter than 5 min.
Zeno advised you on grarscale/screen/G2 adjustments a while back...Might want to do that to check your CRT.

That's good to know!

WiscoJim suggested that we obtain a "SAM photo fact 757-4".
I did a web search and the main seller of them "schematicman" doesn't have that one available (of course!), and I couldn't find it on eBay or elsewhere. Does anyone know a source for an original copy? We have trouble reading reproductions of things, and I just found out yesterday I need to have cataract surgery (the eyes, not the TV screen!)! Too much sun over the years. Any suggestions on the SAM thing is appreciated!

You can buy Sams Photofacts directly from the publisher:

https://www.samswebsite.com/en/photo...earch&s=Search

If you live near a large public library, it's worth checking with the reference desk. Some libraries have subscriptions with Sams that let their patrons download any Sams manual for free.

Regards,

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html

Thanks Phil!
I read somewhere on another radio forum that the SAM from the publisher are expensive and are just sometimes rather iffy copies, so we would prefer an original one if we can ffind it. My hubs says he got one once for a radio he worked on and it helped him a lot.

I have that Sams in PDF form. I have the same chassis in my Zenith roundie. I would be willing to send you a copy of the PDF file which you can print out. Just send me a Private message with an email address and I will get it to you if you want it.

We are a great community! Thanks compucat for your contribution to help another new member feel welcomed here.

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I've got the original Zenith schematic, but no scanner and some don't like photos of schematics...

If I'm not mistaken, Sams 757 woulda been published in 1963. Can someone verify?

June 1965.

http://www.videokarma.org/attachment...1&d=1516503095

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Thanx.

Bad timing. I just scrapped a half dozen all-in-one printer/scanner/faxes two weeks ago. Otherwise I could have given you one tomorrow.

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Thanks to you all for those most generous offers to help!
In the meantime I was able to locate an original SAMS for our set, once again, saved by the 'net! What a country!

So to summarize, at this point we know we have a 1965 Zenith set with chassis 25MC33, motorized tuning but no remote, and "High Fidelity" audio, in a modern Scandinavian-inspired dark cabinet design. It would be interesting to know what the model name like "Westchester" or? was? Are there any known 1965 Zenith TV brochure pdf or other files available to view out there?


This is indeed a very generous and helpful community, and we're happy to be a part of it! I'm not sure how much we can offer to contribute... does anyone need any decorating advice?

According to the Zenith "Radio and Television Receiver Service Manual Index, 1948 through May 1967", the name for the 5331 Color TV is the "Berwick".

The Zenith service manual is CM-106. I'm not familiar with the Zenith manuals compared so Sams.

Thanks gentlemen for that additional information! Berwick! Does the U on the end of our 5331U have any particular significance?

That 1965 ad certainly makes a good case for Zenith quality! The one shown is a tad different than ours, which has 2 knobs at the top, I guess the one in the ad has the remote?