There was a lot on e-bay of OEM Zenith triplers including
many odd ball ones for EFL jugs & others that rarely failed.
That was abt a month ago, dont know if it sold, I posted
the link here cause it was a great deal. I dont remember the
-149 difference from the common -141-** but ref is usually
the low ( almost ground) end. If you wish PM me Monday &
I will look up the EC & JC chassii to see what the difference
is providing I got both manuals.
BTW if its an EFT jug there will be a plug on it with two focus
wires. EFL's started in H line on top-o-line 17 & 19 sets.
73 Zeno