Heathkit/Zenith tubes

[JMeyer101 at aol.com]

Heathkit/Zenith TubesI have 4, new in  the box, CRT Tubes that may work with 
a Heathkit/Zenith H-19 or H-89  computer (I'm not sure how big the display on 
these models are.  The tubes  are 8 1/4 " x 6 1/4").  If they are for 
something else, and you know what  that is, please let me know.


I have been trying to find out  exactly what these tubes are. I have pictures 
for additional identification. I  would hate to get rid of them only to find 
out they are still useful for a  repair or collector.

Here are the part numbers and  information:
These numbers are on the tube: MN1012Pe1Av 254 and  CPJ240A1V and 100-730-03E 
and HG-319 and C1406
380-2655 is written on  the bottom of the boxes.
The boxes are labeled Heathkit, but the tube  inside is labeled Zenith.

Thank  you,

Jeff  Meyer