I brought back this circa '72 Sharp 19" remote tube/transistor hybrid color TV from SC. This set uses a battery operated 4 button ultrasonic remote that controls VHF, UHF, power/volume, and channel display.

Even though this is a clean looking TV that appears to never have been sold, it has some serious issues. When we found the set, the cabinet back was not secured to the TV and we had to find some screws to hold it together. When I got it home, I discovered that the 36KD6 HOT was missing. The only thing I had was a 30KD6; so, I tried that one for testing purposes. The on/off/volume function works; but, the channel motors will not operate. I can hear the relay click; but, the motors will not turn. After several minutes, the HV came up with a very dim raster. Pressing the channel indicator button on the remote confirmed that the OSD channel display worked. Now, here comes the really bad part. The 510CYB22 CRT is nearly dead and rejuvenating it didn't do much good. This is an instant on set and it probably killed itself from years of being plugged in on the shelf.

I must say that this is the first tube set that I've seen with OSD. I'd really like to fix this set; but, have no idea where I'd find a CRT for it. I'd certainly appreciate any thoughts on this one.

I thought I had the original paperwork on this set; but, what I actually got was the paperwork for a C1923 non remote set. My set is a C1933. Actually, this is the first Sharp tube color set that I've seen.

About all I can offer is that it is interchangeable with a 510CZB22...

-Matthew D'Asaro

thats still a pretty neat find! to have the warranty sticker on the screen. hope you can get it kickin!

Some NOS sets that you find were never sold due to factory defects but for whatever reason were never returned by the dealer to the wholesaler or manufacturer. Maybe by that time they decided it was cheaper to just right off the bad TV and replace it rather then to send it back and repair it?It's possible that the picture tube was a dud and once proved to be to the manufacturer they just sent a replacement set or credited the dealer, they may have kept the thing around for spare parts after that. I remember a fellow that had a NOS Philco farm battery radio that was new in the crate, it turned out that it had a factory defect in the wiring, was put into storage and never returned nor repaired by the dealer for some reason.
Best Regards
Arran

I really love seeing these 3-way hybrid sets. It is somehow very odd for me to see vacuum tubes, discrete transistors, and integrated circuits all in the same chassis... It is an oxymoron, or at least should be.

-Matthew D'Asaro

Hello,

i know you said the tube was really low in emission and the raster was very dim, but i am very curious to see what an OSD from a 1972 TV would look like. Where you able to take a picture of it in operation?

Also was this the FIRST TV with an OSD?

Thanks,

Matt

If it's not the first, it's close to it. Up until now, I thought the solid state Magnavox STAR sets from '74 were the first OSD sets. IIRC, Heathkit made some OSD sets in the mid '70's; but, they were solid state. This is the only tube set that I've ever seen or heard of with OSD.

When I get the correct horizontal output tube, I'll power it up and try to get a picture of the OSD.

Hello,

i know you said the tube was really low in emission and the raster was very dim, but i am very curious to see what an OSD from a 1972 TV would look like. Where you able to take a picture of it in operation?

Also was this the FIRST TV with an OSD?

Thanks,

Matt

Verry nice find!

I haven't ever heard an OSD set with a mechanical tuner before, wonder how Sharp got this combination to work?

I encountered the same problem with the channel motor on my mid 60's Zenith Space Comand "portable" . I started out by checking for voltage accross the motor when the channel change button was pressed. After I confirmed there was voltage, I removed the tuner/moter assembly, and found that the grease on the motor's shaft had dried out and begun functioning more like glue! After working in fresh grease it started working like new.

Hi,

I know this is an old topic but did anything ever become of this 3 way hybrid set with early OSD?

Matt