Sylvania CK3000 Test Rig / Roundie -- Test Setup

[Kevin Kuehn]

Originally Posted by Findm-Keepm

I'm not sure, but the 14VAHP22 uses a 14BH basing:

Pin
1=Heater
2=Red Cathode
3=Red G1
4=Red G2
5=Green G2
6=Green Catode
7=Green G1
8="C" - not sure what that is..
9=G4 (Focus)
10=not used/not present
11=Blue Cathode
12=Blue G1
13=Blue G2
14=Heater

Empire (now part of Video Diplay/VDC lists the 13VAHP22 as a replacement for 13VAF, 13VBG, and 13VBTP22 CRTs.

Hope this helps,

Brian, Thanks for trying to help. As it turns out it's not a 14BH basing.

Ron L actually came up with the correct basing over on ARF.

Hi Kevin Kuehn,
according to my 1979 sylvania tube book,
a 13VAHP22 connections are:

pin1= heater, pin2=green g2, pin3= green g1,pin4=red cathode, pin5=red g2, pin6=red g1, pin7= green cathode, pin9=red green blue g3, pin11=blue cathode, pin12=blue g2, pin13=blue g1, pin14=heater.

anode = red green blue g4.
Hope this helps,
RonL

VDC actually had NOS of this tube up until a couple weeks ago. I sat on the fence for too many days and missed out on their last one.

Kevin

[marty59]

As for the smearing issue, the longer CRT wires from the socket to the test jig will cause that to occur.

It has been years since I've used or been around a jig but at one of my first jobs in a shop during the mid-seventies we had a Tele-Matic model jig. (I remember that smearing!) It wouldn't support roundies so we used a gutted CTC-10 metal cabinet set mounted at the end of the bench.

[Gunslinger]

I started using a jig in the early 70's. The Telematic jig did in fact support the round crt type chassis. So did the RCA jigs as well as the Sylvania jigs.

[marty59]

Originally Posted by Gunslinger

I started using a jig in the early 70's. The Telematic jig did in fact support the round crt type chassis. So did the RCA jigs as well as the Sylvania jigs.

That's good to know. Maybe my boss was just cheap as we didn't have those adapters!

[Kevin Kuehn]

Thanks for the comments. I suppose the stray capacitance with the longer CRT cable is causing ringing. I'm also seeing some green ghosting behind images, that I suspsect is because of the green gun leakage in my jigs CRT. Also, the convergence is so poor on this CRT, that I'm seeing multi colored images of text on the outside edges of the screen.

Are there any newer larger rectangular CRT's that are functionally equivalent to the 21FJP22?

Kevin