The story behind all the rare sets

[old_tv_nut]

Originally Posted by Pete Deksnis

Those pictures are looking great on my end of the link.

If I recall correctly, the stripe pattern on this beast is pretty coarse, so I expect you could see them if the shots were in better focus. Is that so, John?

[jr_tech]

Beam Index projector?? YIKES!! I have never seen one. What size tube does it use...what accelerating voltage? Any links to a picture of the tube?

thanks,
jr

[John Folsom]

Jr,

Here is a photo of the 5" CRT used in the beam index projector. Can't recall what the HV is, not shown on the schematic.

[jr_tech]

John,

THANKS! The funny thing is that I am now starting to collect items that were MADE after I stopped collecting the first time round in this hobby. I found the flat-tube Sony "Watchman" sets to be interesting... I believe that that was the only commercially successful application of a flat tube design. It seems that Sony did it again with beam-index technology.

Did Philco ever sell any "apple-tube" sets ?

jr

[David Roper]

Philco didn't sell those Apple prototypes, but they make doubly sure to destroy them all.

[John Folsom]

Aye, old_tv_nut, that is so. The horizontal stripe pitch on the vidimagic, the KVX 370 and the beam index viewfinders are all pretty coarse. I suspect this was one of the limiting factors which did not allow the beam index technology to triumph.

[zenith2134]

Hi
Just wanted to let you'll know how much I am enjoying this thread. Great stories. My stories are no match. The best set I ever passed up was nothing special by these standards, a Setchel-Carlson modular b/w set at a yardsale, the man wanted too much $ for it and it was in really bad shape...Yes I still regret it though.