New Flyback-Too Much Width

[cbenham]

I installed a Thord. FLY-1 in a Philco 50T-1400 12 inch TV and it works well. TOO WELL.
I have more width than the width coil can reduce. I'm losing an inch or so on each side beyond the edge of the CRT, which is a 12LP4, and there is 10.8 KV high voltage.

The horizontal linearity is good, set by adjusting the lin. coil for the lowest current drawn by the H. stage, 129 mA.

The vertical height is normal with good linearity and the set makes an otherwise good picture.

I have not tried any 'fixes' yet, and before I do I thought it best ask people with more expertise than I have on these older sets.

The tubes are all good, the voltages are right on the mark, all the paper caps were replaced with orange drops and the electrolytics were replaced with single section axial lead versions.

Does anyone know if this flyback produces a little more yoke drive than the original Philco 32-8421 flyback?

If so, what might I do about it?

I know Zenith used a very thin piece of sheet brass shimmed between the yoke and the CRT neck on their B&W sets to adjust width and I'm wondering if that is something I might try?

What about wiring a resistor or another width coil in series with the H. yoke?

Am I overlooking something? Any help and suggestions will be greatly appreciated!

Regards,
Cliff