[Milsurplus] Vibrator for PP-114B Power Supply wanted

[Wim Lakeman]

Dear Listers,

For a vibrator power supply PP-114 B/VRC-3 (part of my BC-1000 set) I am
looking for a couple of spare vibrators.
The present vibrator is a 6 V DC vibrator 7 pins
stock number 3H 6691-L7
Model S-168V
Made by Vibration Research Labs inc.
Tuckahoe NY
Anyone familiair with this model ?
Is there a equivalent for this model?
I tried to use a French make, but that doesn't work.

Best Regards,
Wim Lakeman
The Netherlands