I have an Arkay Speed Dodge printer. I double checked the Internet and mine has Argon filled lamps that have a very bizarre purple glow. According to the bulb nerds it produces a lot of long wave uv. I remember printing with Azo, times were short like less than 2 seconds if I remember right. The previous owner had a cryptic note pasted to the unit that said use 0.2 to 0.8 sec. exposure times. The factory timer that came as an option had range settings from 0.1 to 9.9 seconds. Thus the "Speed" moniker fit and this was with contact speed chloride based paper! I haven't used it in years but it looks Real Cool!!! Lamps have a standard medium Edison base so it would be easy to use 4W tungsten bulbs. I need to fire it up , and try it with Foma's new contact speed chloride DR paper.
That light source might be suitable for Carbon printing?
There's a set of 5 of the bulbs on eBay right now.
Very cool.
Morse printer https://www.ebay.com/itm/28542169551...3ABFBMguGyu-Zi
There were so many
Most tossed as garbage
I paid $200 for this 9 years ago with broken glass
8X10 is perfect, replaced the 1/4" glass and 9 lamps with oven bulbs and added paper diffusion
Great for multiples
Fast throughput
Adjustable lamp box height
WEB Contact Printer by TIN CAN COLLEGE, on Flickr
Tin Can
Morse model 21
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