Rare Sharp 2U-121C B&W Vacuum Tube TV

[sampson159]

clean as a pin!

[dieseljeep]

Originally Posted by sampson159

clean as a pin!

The term is usually "Neat as a pin". Real Estate jargon.
Just how neat or clean is a pin?

[VintagePC]

Originally Posted by dieseljeep

The term is usually "Neat as a pin". Real Estate jargon.
Just how neat or clean is a pin?

Really depends how well you washed it after giving that last craigslist fishtanker a million pinpricks as punishment...?

[kx250rider]

WOW, that's CLEAN!!!!! Nice find, and I think it's in the best shape I've ever seen a small B&W plastic portable in.... ever!

Charles

[Kamakiri]

Originally Posted by Robb

Thanks.
Here's my others..

http://www.stevemeadedesigns.com/boa...table-crt-tvs/

Let's get together next time you come to Buffalo. I'll send you home with some nice additions to that collection

[Robb]

Originally Posted by Kamakiri

Let's get together next time you come to Buffalo. I'll send you home with some nice additions to that collection

Find me a mint Porta Color set and I will come right away !

[Kamakiri]

Well, just have one shipped here, then come get it! There's enough of them for sale here and on ebay....just not up North

[Robb]

Originally Posted by kx250rider

WOW, that's CLEAN!!!!! Nice find, and I think it's in the best shape I've ever seen a small B&W plastic portable in.... ever!

Charles

My other B&W Are mintier.
There's a lil Magnavox here that is flawless.

http://www.stevemeadedesigns.com/boa...table-crt-tvs/

Originally Posted by Kamakiri

Well, just have one shipped here, then come get it! There's enough of them for sale here and on ebay....just not up North

You guys are always searching for them on ebay. I dont have patience to search ebay consistently !

[Jeffhs]

Originally Posted by Robb

Picked up this Rare Sharp 2U-121C Black and White Vacuum Tube TV for free, untested. Gave it a cleaning, polishing. It is in real nice condition, no cracks or faults on the case.Turned it on waited 45 seconds and it works. I believe this was made in 1971-72 ?? Made in Japan.
I cant find any info on it. I peeked inside and noticed it is a tube hybrid set ?

Some pics and video

http://youtu.be/kL_Bmrzoc_s

How do you know the set "works"? Your Youtube video shows the set getting nothing at all on any channel except snow.

BTW, in the '70s I had a Sharp 12" portable, model TU-40PA, but with the controls mounted horizontally above the CRT, a monopole VHF antenna, and an earphone jack. Worked well at first, and I enjoyed watching it, but after a couple years the VHF tuner developed a problem (a poor connection, I suspect), although after 40 years I don't remember anymore; I could get the set to make a picture by wedging a screwdriver between the tuner shaft and the cabinet, but later the TV developed another problem (don't remember what) and I finally wound up junking it. I would think that TV would have lasted at least five or perhaps ten years with only an occasional tube replacement, if that. That set was built in the NTSC era and, supposedly, was made to last, so I would have expected it to work at least through the '70s and perhaps most of the '80s. However, with most of the set on a PC board, it might have developed serious problems anyway after a short time due to the horizontal output and other high-power tubes (such as the audio output tube) generating so much heat. I lost a CTC-12 RCA clone color TV in the early '70s when the video output board cracked, probably due to high heat inside the set and other factors (such as the materials early PC boards were made of, which I suspect was phenolic that doesn't stand up well to high temperatures).

[Robb]

Originally Posted by Jeffhs

How do you know the set "works"? Your Youtube video shows the set getting nothing at all on any channel except snow.

Because if set turns on ans shows snow, it works.

[electroking]

How about connecting it to a source (VCR/DVD player with modulator output
set to channel 3 or 4) and looking at a real picture?

[Robb]

Originally Posted by electroking

How about connecting it to a source (VCR/DVD player with modulator output
set to channel 3 or 4) and looking at a real picture?

Not really on my high priority list right now.

[zeno]

Originally Posted by Robb

Because if set turns on ans shows snow, it works.

Robb is correct. I used to tell Jr. techs about "good snow" &
"bad snow". You can tell a lot by how the snow looks. Streaky or
weak snow is bad. Lack of snow is worse. Nice sharp snow & a
nice waterfall in the audio is a beautiful thing. If you have a
good snow picture you will almost always get a very nice picture.
You may get a snowy pix but a new RF amp or mixer/osc will
take care of that. Kind of strange since most of the snow is
noise that is generated inside the TV............

73 Zeno

[compucat]

Originally Posted by zeno

Robb is correct. I used to tell Jr. techs about "good snow" &
"bad snow". You can tell a lot by how the snow looks. Streaky or
weak snow is bad. Lack of snow is worse. Nice sharp snow & a
nice waterfall in the audio is a beautiful thing. If you have a
good snow picture you will almost always get a very nice picture.
You may get a snowy pix but a new RF amp or mixer/osc will
take care of that. Kind of strange since most of the snow is
noise that is generated inside the TV............

73 Zeno

Sets with more I.F. stages will produce more snow. I have noticed that 1940s sets, especially the lower end models will even when working correctly not produce much if any snow on unoccupied channels.

[old_coot88]

My first Boss, in explaining replaced parts to a customer, would refer to the RF amp as the "de-snower" tube.