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 Post subject: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Tue 22, 2019 7:00 pm 
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Joined: Sep Tue 30, 2014 6:08 am
Posts: 4897
Location: Norfolk, VA
Found this when cleaning out the other day - a Sylvania "Add-Ears" kit for Color CRTs. Band, Ears, Instructions, and an Interchangeability Matrix for using Sylvania replacement CRTs. Might come in handy for some here.

The "band" is about 16 feet of steel banding, 1/2" wide, with notches to engage the actual clamping mechanism, which is just like most replacement radiator hose clamps, with helical grab. The ears have a 1x1" CRT corner "contact" area, and about 1.5X1.5" perforated ear. Handy if you had a stock of older CRTs and wanted to use them in the newer sets with eared-CRTs.

Instructions:

https://drive.google.com/open?id=1ONR6z ... IYSIbjlPGl

Interchangeability Matrix:

https://drive.google.com/open?id=1ApwC8 ... LKXYHNQY8i

Sylvania/Philips ECG Kit part number is EK1 for those that might want to search for one on eBay or the web.

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Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


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 Post subject: Re: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Wed 23, 2019 7:30 pm 
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Joined: Mar Tue 03, 2009 11:12 pm
Posts: 1548
Location: Hutchinson KS
This reminds me of years ago when a local Motorola dealer cut the strap off of a replacement crt to make it fit into a customers color set. The tube imploded in the customers home.


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 Post subject: Re: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Thu 24, 2019 4:14 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 10562
Location: Redlands CA
SteveT wrote:
This reminds me of years ago when a local Motorola dealer cut the strap off of a replacement crt to make it fit into a customers color set. The tube imploded in the customers home.


I was just going to say not to try that!


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 Post subject: Re: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Thu 24, 2019 2:53 pm 
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Joined: Nov Thu 11, 2010 6:03 pm
Posts: 968
Location: Pewaukee, WI
A lot of non-banded tubes mounted to chassis or cabinet with adjustable bands, and that is perfectly safe (adding a band with light tension to a non-banded CRT).

But the other way around removing a fixed tension factory band from a CRT tends to result in implosion.


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 Post subject: Re: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Thu 24, 2019 6:21 pm 
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Joined: Jan Mon 18, 2010 2:13 am
Posts: 19482
Location: Dayton Ohio
The cutting of a pre-banded CRT made me cringe.

I never had one implode on me, but I handled them as if it could.

The only implosion I ever experienced was a 27 inch CRT (A68ACT00X) I threw in the dumpster.
I noticed it was fully intact, so i took a spud-bar and struck the face... FOOM! Glass was raining down...

Dumb... just dumb... :oops:

-Steve

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 Post subject: Re: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Tue 29, 2019 4:37 pm 
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Joined: Sep Tue 30, 2014 6:08 am
Posts: 4897
Location: Norfolk, VA
Some here might remember replacing the crappy 23EGP22 CRTs in Motorola color sets with a 25AP22 using the Motorola kit of bands and ears. The OEM 23EGP22s dropped like flies after the first year or so, and 25AP22 rebuilds were about $35 versus a Motorola price of $72 for the 23EGP22. Even with the band kit from Motorola, you came out about $25 bucks ahead, and the 25AP22 would last a lot longer.

Those Motorola band kits dried up in the era of Matsushita's buyout of Motorola/Quasar.

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Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


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 Post subject: Re: No Ears on that Color CRT? No Problemo with this Kit.
PostPosted: Oct Tue 29, 2019 6:44 pm 
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Joined: Mar Tue 03, 2009 11:12 pm
Posts: 1548
Location: Hutchinson KS
I was trying to remember about the early crt failure of the 23 inch sets from Motorola. We did a few way back then. I wonder if the Motorola dealer I referred to was trying to not use the kit which is why he cut the band off of a crt. I do remember we sold Admiral tv that also used that 23 inch crt. Failed under warranty and the Admiral supplied rebuild crt's were just horrible! We couldn't get them to track worth a darn.


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