Vintage Electronics Blogsphere

Tube Power

How can I get a source of cheap energy for a CRT Maltese, I found in my school.?

I want to show this Ray Tube to my students so they can better understand the electron. The instructions say 2000-5000V voltage anode, filament 7.5 V maximum voltage, typical anode current at 4000 V is 1.8 MA. Any suggestions on how this power under the May Cathode Ray tube Thanksgiving $ 100. Professor of Science, new

7.5 volts is simple, requires only a supply of 12 V variable power is set at 6 volts or you can buy a motorcycle battery 6 V. The AT is a little harder. Do you have an old Model T Ford around? They had an induction coil in the wooden box that is often used for maximum tension. An induction coil of excess cars and the ring may also be used. I am sure there are references in the web of how to build mini-generators spark. For Solid State, try the following link. It seems that each Electronics 2kV 10mA supply for $ 10! This must be the simplest approach. But careful, you're dealing with very high voltages, which can zap you. And be careful not to overdrive the CRT, because these older units can emit X-rays

Speedy Signs Contract with two new offerings, two extensions Deal LONDON - (Dow Jones) - Speedy Hire PLC, a British supplier of tool and hire equipment, announced Tuesday it has won a contract with BT Group plc (BT) to provide mobile generators to support the national network society of over 6000 plants calls.

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