Hickock Cardmatic 121 Cards

[Zenith6S321]

Yes it would be nice to collectively put together a database to make the tester more useful for all. I took a look at the 121 schematic, but I doubt there is enough information to try to reverse engineer it and come up with card designs from tube specifications.

Dave

[N2IXK]

Originally Posted by Zenith6S321

Yes it would be nice to collectively put together a database to make the tester more useful for all. I took a look at the 121 schematic, but I doubt there is enough information to try to reverse engineer it and come up with card designs from tube specifications.

Dave

Not sure about the 121, but you can develop your own test cards for the 123 and 1234, and the different variations on these, including the military AN/USM-118. I have the Western Electric variant (KS-15874-L2), and the instruction manual has explicit instructions on how to make up a custom test card given a basing diagram and basic tube specifications. Mine came with a good supply of the blank cards and the hole punch.

I don't have the "full" set of test cards, but most of the ones that I am missing are the "later" types, mostly series string stuff.