Rare find! A Magnavox Brittany tv!

[Electronic M]

If it works on one tube, the cathode current isn't beyond specs for the tube, and it doesn't somehow run the flyback hotter it's probably fine. It can't hurt to try...If one tube has a sudden failure the same condition would exist so the designers should have at least considered the probability of it happening.

[Yamamaya42]

Originally Posted by Electronic M

If it works on one tube, the cathode current isn't beyond specs for the tube, and it doesn't somehow run the flyback hotter it's probably fine. It can't hurt to try...If one tube has a sudden failure the same condition would exist so the designers should have at least considered the probability of it happening.

http://suzaku.live-evil.org/0528252248_Burst01.jpg
It does say to use one tube for the AP4 and 2 for the EP4, and I did get it with FP4 but am putting in a LP4 that has an angle closer to the AP4, so I guess the dual is not needed, but if it means the FBT will be cooler... who knows.