The current list of fully functional regulators:
The currently used stuff
2 Mk 17 DIN D400's (current back gas regs)
4 Mk 3 DIN Balanced Adjustables (used as deco regs)
The could be useful stuff
1 Mk 25 X650 (bought for evaluation)
2 Mk 20 DIN D400's (previous back gas regs)
2 Mk 15 D400's (prior to the previous back gas regs)
2 Mk 10 D300's (rescued off e-bay)
3 Mk 10 Plus Balanced Adjustables (because you can never have too many)
2 Mk 10 Balanced Adjustables (same as above)
1 Mk 3 High Performance (my first reg)
The semi-collectible stuff:
1 Mk 5 Air 1
3 Mk 5 High Performance
1 Conshelf XII first, second and octo
The collectible stuff:
1 Conshelf XI first and second stage
1 US Divers Deep Star first and second stage
2 US Divers DA Aquamaster double hose regulators
1 US Divers DW Mistral double hose regulator (my favorite double hose reg)
The odd bits and pieces
1 Mk 10 first stage
1 Mk 5 first stage
1 Sherwood second stage (old but never used)
1 Dacor Viper second stage
1 Tusa Duo Air
The currently used stuff
2 Mk 17 DIN D400's (current back gas regs)
4 Mk 3 DIN Balanced Adjustables (used as deco regs)
The could be useful stuff
1 Mk 25 X650 (bought for evaluation)
2 Mk 20 DIN D400's (previous back gas regs)
2 Mk 15 D400's (prior to the previous back gas regs)
2 Mk 10 D300's (rescued off e-bay)
3 Mk 10 Plus Balanced Adjustables (because you can never have too many)
2 Mk 10 Balanced Adjustables (same as above)
1 Mk 3 High Performance (my first reg)
The semi-collectible stuff:
1 Mk 5 Air 1
3 Mk 5 High Performance
1 Conshelf XII first, second and octo
The collectible stuff:
1 Conshelf XI first and second stage
1 US Divers Deep Star first and second stage
2 US Divers DA Aquamaster double hose regulators
1 US Divers DW Mistral double hose regulator (my favorite double hose reg)
The odd bits and pieces
1 Mk 10 first stage
1 Mk 5 first stage
1 Sherwood second stage (old but never used)
1 Dacor Viper second stage
1 Tusa Duo Air