[old_coot88]

Originally Posted by Yamamaya42

I found a " Dunsel "

An old Blonder Tongue Ultraverter Dunsel to be exact!
https://www.ebay.com/itm/20151173538...m=201511735381

We sold a gadzillion of those back in the day. Biggest problem with 'em was intermittency of the wipers on the tuning rings. Cleaning and re-lubing usually helped. Used a 6AF4 and 6AB4. The one tube version had just the 6AF4. Don't recall ever replacing a tube.