GE M935AWL restoration

[bandersen]

Originally Posted by kvflyer

Silicone instead of packing tape on the edge?

I'll use tape as well once the silicone sets up. Just in case there are any tiny gaps.

Originally Posted by Yamamaya42

Congratz on your first one!

At least you did not have to deal with a secondary CAT-A-Ract, like I did the first time!

https://imgur.com/Cub0Mxk

Yeah i posted this before!
He's a brat!

LOL, thanks. No, but I did have to deal with a stray dog hair or two.

[DavGoodlin]

Originally Posted by damen

I don't have a screen shot (maybe someone does) but I think that GE is like the set MR. Ed won and kept moving it from Wilbur's living room to his stall.

+1 I saw that episode and agree!

[bandersen]

Looks pretty good to me. Now the real fun begins.
Finish the chassis overhaul, put it all back together and deal with convergence.

[bandersen]

I put all the stuff back on the neck as best I could and popped the chassis back in.
Still have more work to do on it, but I'm anxious to see how the CRT looks.


Crap! No idea how this happened. RIP 6JS6C


Installed a used, weak one. Takes a while to get full horizontal deflection, but it's alive gain.



Looks like I didn't screw up the convergence too badly.
New circuit breaker is working fine, but all the other issues remain.
Lack of vertical height, poor linearity, very dirty volume control, etc.
I'll tackle all that stuff next.

[Yamamaya42]

Damn. those tubes are not cheap! Thanks to the audio nuts!

[Electronic M]

Originally Posted by Yamamaya42

Damn. those tubes are not cheap! Thanks to the audio nuts!

I've had decent luck getting them for under $10 at antique radio swapmeets. Radio collectors typically don't use TV tubes, don't consider them valuable and don't bother eBay searching value...

[bandersen]

I have a spare or two. Mostly I'm bummed because it was original like all the other tubes (and worked fine).

[Yamamaya42]

I don't remember for sure right now, but I think I have a 6hf5 in mine right now.

[Yamamaya42]

just for the hell of it, and it is the season!

Here is mine, from 4 years ago.




https://www.youtube.com/watch?v=C6OedtbldkQ

[N2IXK]

Originally Posted by Yamamaya42

Damn. those tubes are not cheap! Thanks to the audio nuts!

The CB freaks get most of the blame on those. Horizontal sweep tubes were widely used in illegal CB linear amps through the '70s and '80s. They were typically overdriven, and went through them really fast....

[Yamamaya42]

Originally Posted by N2IXK

The CB freaks get most of the blame on those. Horizontal sweep tubes were widely used in illegal CB linear amps through the '70s and '80s. They were typically overdriven, and went through them really fast....

"Foot Warmers"
But it was not until audiophiles started to use them in amps did the supply really drop and the prices REALLY start to go up.

[Tom9589]

Speaking of foot warmers.... I worked for an electronic manufacturer in the 1980s which did not allow individual heaters to keep personnel warm. Instead, the secretaries got us to place Tektronix 545 tube oscilloscopes in the cutouts of their desks. It kept them warm all winter. However, the company still had the oscilloscopes (heaters) re-calibrated on the normal schedule. Finally, in the late 1980s, they offered these oscilloscopes to the technical staff. I managed to snag a calibrated 547 with 1A1 and 1A7 plug-ins. Still have it.

[old_tv_nut]

Originally Posted by Tom9589

Speaking of foot warmers.... I worked for an electronic manufacturer in the 1980s which did not allow individual heaters to keep personnel warm. Instead, the secretaries got us to place Tektronix 545 tube oscilloscopes in the cutouts of their desks. It kept them warm all winter. However, the company still had the oscilloscopes (heaters) re-calibrated on the normal schedule. Finally, in the late 1980s, they offered these oscilloscopes to the technical staff. I managed to snag a calibrated 547 with 1A1 and 1A7 plug-ins. Still have it.

Model 545 foot warmers!

[Yamamaya42]

Yeah, that's one heck of a resistor you showed off there in your video!
L100J2K0E

2k 100w

Lucky that you have the gear to do the chroma bandpass alignment.

[bandersen]

You mean this little guy? Sure beats have the horizontal output tube running and HV crackling.