10 hours ago
There is a Mission Bell model 19/19A that could be what you’re looking for, Riders vol 4. It has the tube line-up of: 0Z4, 58, 57, 41, and a Wunderlich tube. The Wunderlich tube is replaced with a Sylvania 29 (2.5v filament) or a Sylvania 69 (6.3v filament). I got this info from vacuumtubesinc.com under “Tube Tidbits”. Cheers,
Joe
Matthew 16:26 "For what does it profit a man if he gain the whole world, yet lose his own soul?"