Philco B-412UBE - Videokarma.org TV - Video

Dave A · #1 09-29-2022, 07:55 PM

I dug this little Philco 12" BW out today and fired it up and all was well with a Deoxit wash. Pic is a bit wide and I will see if that is adjustable. i did the top and bottom adjustments. AGC action is not good if it is even in there. No idea how long I have had it. I could not find any trace of it on the web. All tube and Philco/Ford made in Taiwan. My guess is 1967-68. A Beltron test says the CRT is like new with a few hours of warm-up from a long sleep. Keeper.

zeno · #2 09-30-2022, 02:40 PM

Looks good. Philco B&W's realy improved at the end. The last ones that were SS were quite good.
Color a different story. The hybrid was a great chassis. When they went
SS they cloned the RCA SCR sweep/HV chassis. They were real dogs.
Still would be fun to work on one.

73 Zeno

LFOD !

AlanInSitges · #3 10-02-2022, 05:41 PM

Quote:

Originally Posted by zeno

When they went
SS they cloned the RCA SCR sweep/HV chassis. They were real dogs.
Still would be fun to work on one.

Shango pulled one of those out of a ditch someplace and got it going again, full of mud. I remember being amazed at how complex the regulated, switching power supply was. It seemed like it was way overkill for a second-tier 19" TV, especially during a time when GE just had a pair of diodes and a zener in their competing set.

DavGoodlin · #4 10-03-2022, 10:00 AM

I never saw one like that Dave, I'm more familiar with the 9" B-310 made in Taiwan, which operated on 12 volts like the GE "cube", a domestic built all SS.

Was that one made in Taiwan ?

Dave A · #5 10-03-2022, 11:14 AM

Yes, it is Taiwan.