I picked up some EG&G Thryatron drivers today at a good price from a local surplus shop in town. I don’t go to the surplus shop as often as I should, there’s always interesting things moving in and out of that place and to catch them you really have to check often. I am somewhat driven away by the fact that they don’t like to sell laser equipment to normal people and often they dispose of it in other ways which is a bit aggravating. Fortunately they don’t mind selling the power supplies and associate equipment to run lasers!

EG&G TM-29 Pair

The two modules shown below are TM-29 Thyratron drivers by EG&G one is newer revision than the other from inside and outside appearances as well as variations on the serial number. I’m not sure what these these thyratron drivers originally cost, but judging from the insides and the fact they’re from EG&G I’m going guess they weren’t cheap.  I’m planning on using one of these with the TEA N2 a friend gave laser instead of the original triggering circuit as these have a variable speed control and will integrate nicely into the setup.

The TM-29 has variable pulse rate up to 2kHz as well as a manual fire button.  Additionally they can be linked together with a co-ax cable to work in tandem running two thyratrons or providing a sync output to another piece of equipment that requires knowing when the thyratron was fired. That’s pretty cool and adds some flexibility to what type of laser projects they can be used for in the future.  The TM-29 is spec’ed for 3″ and larger thyratrons, so I may have to find a large thyratron for some capacitor discharge experiments, or do some research and study to see if these will run smaller ones without causing any damage.

EG&G TM-29 Pair

EG&G TM-29 Pair

 

EG&G TM-29 Pair - Back

EG&G TM-29 Pair – Back

EG&G TM-29 Internals

EG&G TM-29 Internals

EG&G TM-29 Internals 2

EG&G TM-29 Internals 2

EG&G TM-29 Internals 3

EG&G TM-29 Internals 3

EG&G TM-29 Internals 4

EG&G TM-29 Internals 4

EG&G TM-29 Internals 5

EG&G TM-29 Internals 5

EG&G TM-29 Internals 6

EG&G TM-29 Internals 6

EG&G TM-29 Internals 7

EG&G TM-29 Internals 7

EG&G TM-29 115/230 selectable

EG&G TM-29 115/230 selectable


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