Ethical dilemma: Do I scrap an Admiral to fix a Predicta?

[Electronic M]

I scored what amounts to a $20 Predicta Debutante with an original Philco 17DAP4 CRT that has an open heater.
DSCN2002 by Tom Carlson, on Flickr

I have about $25 in an Admiral I have in working order which has a 17DSP4 CRT that I believe would fit the Predicta.


This Admiral ain't exactly rare (I've seen at least 2-3 others), or valuable.
Do I kill it to get the Predicta to live?

I also have a potential source of a good used and or NOS CRTs for it, but odds are it is going to cost me ~$60-200 (need to talk with the seller more) for one. Should I pursue that instead?

There also is potion C: pop the admiral CRT in the philco, make the philco work (if it can), then (if successful) get a new jug for the philco and return the admiral CRT to it's original set.

What say you?