In my mind vintage is equipment and/or technique. Diving with an old style 7mm and no BC is certainly vintage in technique even if a modern regulator set is being used.
I don't think anyone supported "Today - 6 weeks = New Vintage" or "poodle jackets" as being vintage.
The problem is making a date the diving line between vintage and non vintage is many pieces of vintage type equipment were produced post the mid 70s as pointed out by Luis. On the other side the modern BC made its appearance before the end of double hose production.
Therefore, maybe the definition should be equipment style and/or technique based.
However, as I stated before unless ScubaBoard changes the forum definition we should expect discussions of 1980 and prior equipment in this section.
Vintage equipment era late 50s:
Vintage equipment era circa 1960ish:
Vintage equipment era circa 1964:
Vintage equipment era circa 1966:
Vintage equipment era circa 68-70:
Vintage equipment era circa 1972:
Transitional or Horsecollar era with power inflator, circa 1973-74 (notice--WIDESPREAD use of power inflator appears):
Transitional or Horsecollar era circa 1974-1978:
Wings begin showing up circa 74 to 78:
Poodle jackets show up in force late 70s, 78 to 84 era:
IMO, it is not strictly the end of the RAM circa 73-74 but a confluence of events including the end of using CO2 vest (Mae Wests) and the brief use of oral inflation BCs and the widespread introduction of power inflator equipped horsecollars and the appearance of the SP Stab Jacket that closes the door on the Vintage Era at approximately 1973/74. Sure, some bits and pieces of equipment and techniques showed up before the WIDESPREAD use but it is the WIDESPREAD use and incorporation into training standards that counts, not if a fellow glued two horsecollars back to back in 1968 and made a protozoic poodle jacket or strapped his weight belt on with a rope and duct tape thus having the prehistoric weight integration system---like good grief!
But if you include the transitional period equipment as vintage then we have horsecollars, wings, poodle jackets, octopus seconds, power inflators which were used in mass by everybody through the mid and late 70s.
Notice also that prior to about 1965 nobody much used a Mae West and then between about 64 through 72 the Mae West CO2 vest were popular. Notice when the power inflator popped up in widespread use.
My "typical" configurations from 1966 to present, specialty, deep, cave etc excluded.
My configuration in 1966, generic awful round mask, Voit full foot Vikings:
Mistral, mask, J snorkel, wetsuit with beaver tail top, weight belt, USD harness
My configuration in 1968:
Calypso J, USD Pro Mask, J snorkel, full two piece 3/16 slick skin suit, weight belt, USD Mae West, Viking Fins, Voit Snugpack
My configuration in 1970:
USD Conshelf, USD SPG, USD Pro mask, no snorkel, Mae West, weight belt, Viking Fins, Voit Snugpack
My configuration 1973:
Conshelf, USD SPG, USD Pro Mask, no snorkel, Mae West, weight belt, Rocket Fins, Voit Snugpack
My configuration 1976 (non cave):
USD Conshelf, SPG, Dacor low volume mask, Dacor Seachute horsecollar twin bladder with power inflrtor, Jet Fins, generic plastic backpack
My configuration 1979--2000 (non cave):
Tekna T2100/T2100B, Tekna mask or Dacor low volume, spg, SeaTec wing, no snorkel, Jet Fins, Scubapro two hole console, weight belt
My vintage configuration 2010:
RAM, Jet Fins, USD Atlantis mask, Freedom Plate or Snugpack, weight belt, no snorkel, SeaVue on banjo
My Minimalist non legal:
RAM, Jets, Atomic Framelss mask, Freedom Plate, weight belt, no snorkel, B&G SPG, Sea Turtle second, no BC, Aeris Atomos computer
My Minimalist legal:
PRAM or Titan LX set, Oxy 18/30 Mach V wing, no snorkel, Atomic Frameless mask, Freedom Plate or Oxy Ultralight, Jets, weight belt or DR weight pockets. Hog rigged. Aeris Atomos computer.
Currently, I dive Minimalist Hog rig with Titan LX or modified Hog with PRAM now except when playing with all the old rotten rubber junk.
YRMV, I was there through the "change" in more ways than one. I remember the first time I was told I could not dive unless I had a octopus and a BC with a power inflator, I remember when I was told in 1982 that wings were not PadI approved and I could not use one, I remember when I switched from dh to single hose, I remember when I got my first horsecollar BC, I remember when the RAM disappeared from stores, I remember when wings reappeared. I also remember flipping a horsecollar upside down circa 1974 and mounting it on my Snugpack or harness as a wing. Was this widespread, NO!
You guys may be confused on what "vintage era" is and how it differs from today but I am not.
N <---continuously active diver since 1966