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Originally Posted by polaraman
This set is supposed to have the glass CRT. I think the 21AXP22 was finished after to CTC 5.
polaraman
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Polaraman, you are correct. The metal 21AXP22A picture tube ended as original equipment with the CTC-5.
The CTC-7 series originally had the newly
introduced all glass 21CYP22A picture tube.
The 21CYP22A has the two recessed high voltage connectors on the side. A resistor is used between the two connectors to reduce arcing damage.
-Steve D.