Anyone tried testing 6DJ8s on I-177 tube tester?

Hello ....
Just curious if any member has attempted testing 6DJ8/6922 tubes on Military
I-177 tube tester (w/o Mx-949 ). Using your-own built adapter.

I was considering this project but would like to hear from experienced tube
gurus here if it would even be possible w/ the I-77.
Any info would greatly be appreciated...

Thx in advance.