21cy Into Ctc-4 Mask

[stromberg6]

Thank you all for the replies!
I am taking a long weekend over the Presidents holiday period. I will attempt to install the 21CY, and let all know how it goes. I am currently working on a solution to the HV connection, which shouldn't prove too difficult. The "leaves" of spring steel have broken away from the center of the connector disc. I am going to try to attach a suitable piece of HV cable, using a #4 screw, by inserting the screw between the broken pieces left in the disc. No HV putty on hand, but lots of corona dope and RTV compound (BTW Cool Whip tops with HV putty wedged between once served well in a 21FB conversion in a CTC-7 near the anode and crt mounting ring).
As for the weak 21AX, I have had the heaters on for a couple of hours during initial testing, but will keep them on longer to see what happens. Thanks for that suggestion!
Thanks again!
Kevin G.