[R-390] Electro s Nah relay base/plug!

[ToddRoberts2001 at aol.com]

In a message dated 8/17/2005 5:34:30 PM Eastern Standard Time, N4BUQ writes:
Todd,
That's right and something I hadn't considered until earlier today.  One
thing I thought might work is to remove the "spline" from the octal stem.
You'd have to be very careful to plug them in with the correct orientation,
but given that interference issues are already present, it might not be too
much of an issue.
They used to make octal adapters that fit on older tubes where the orienting
stem had broken off.  The adapter has 8 holes which slide over the tube's
pins and you can choose from 8 different "orientations".  A little epoxy to
hold it in place and that might be a workable solution albeit an expensive
one considering the cost of the relay holder, replacement stem, and caps.
But, hey, it's just money.  They'll print more.
Barry - N4BUQ

Barry,
       That is an option to use the octal keyway repair items - they are 
still available from Antique Electronic Supply. You would have to take off the 
entire keyed stem on the relay plug down flush to the base of the pins, then slip 
the new keyway over the pins with the orientation offset 45 degrees then glue 
it to the base. Problem would be the best way to get the old keyway stem off 
the octal relay plug. Might be hard to get it off cleanly if it is made of 
brittle phenolic. If it is softer thermoplastic you might be able to drill it out 
from the topside using a drill-press and a step drill or by stepping drill 
sizes. Don't know how you could cut it off flush at the base - how would you get 
some kind of a saw down in there between the pins? Would be an interesting 
project! 73 Todd WD4NGG