8-liners connectors?

[RetroJames]

Does anyone know if you can use the 8-liners 19" chassis on a CRT with a 12 pin connector?  I emailed 8-liners, but figured this was worth a shot.


TV Specs are as follows if this at all helps:  

Quasar Dynacolor
MFG Date: October 1984
SN: AN42780800
MN: TT5957XW
Chassis Number: ADC119
Tube: MV48AANO2X

[Ken Layton]

According to the B&K restorer tube chart, the tube number you mentioned is actually a A48AAN02X which is a 10 pin tube.

[RetroJames]

According to the B&K restorer tube chart, the tube number you mentioned is actually a A48AAN02X which is a 10 pin tube.

Can Reference that chart somewhere?  I suppose I need to pull the circut board off the back of the yolk and take a look, but looking at the connector it is numbered 1-12 all the way around...?  Is it possible they would have 12 sockets on the board but only 10 pins on the yolk?

[Ken Layton]

The B&K rejuvenator setup chart is available to download free at www.ionpool.net under the 'monitors' section.

If a tube is listed on the B&K chart as using socket adapter 23 then you have a 10 pin tube.

[MonitorGuru]

According to the B&K restorer tube chart, the tube number you mentioned is actually a A48AAN02X which is a 10 pin tube.

According to Sencore CRT setups, that tube number has a standard 10 pin connector with standard assignements to each pin.

F1: 9
F2: 10
RK: 8
GK: 6
BK: 11
G1: 5
G2: 7

I suppose I need to pull the circut board off the back of the yolk and take a look, but looking at the connector it is numbered 1-12 all the way around...?  Is it possible they would have 12 sockets on the board but only 10 pins on the yolk?

There are unused "pin holes" on a standard neck board. They separate the VERY high voltage focus grid pin from the other lower voltage grids/guns/heaters to prevent arcing. Therefore a 10 pin tube actually has enough space for either 12 or 13 pins, if you take off the plastic restrictor cap surrounding the pins (don't do that, just saying "if")

Also just FYI, it's "Yoke" like a flight yoke (airplane steering wheel) and not "Yolk" like eggs. You see the name makes sense since a yoke is used to "steer" the electron beams to hit different parts of the tube. Without a Yoke they'd burn a hole in the center of the tube and you'd have nothing more than basically a contained laser.


Also, the Yoke ONLY talks about the piece of plastic on the back of the tube that is surrounded by copper windings. it's not the circuit board (neckboard), not the glass tube (CRT), and not the magnetic rings on the back of the tube.