- T1 is an ordinary 9V 1A transformer connected backwards for step up.
- R1 MUST be installed on a LARGE heatsink. A good heatsink is the metal case the supply is built in.
- R2 Protects the laser tube from excess current. It should be soldered directly to the anode terminal on the tube. To find R2, start with a 500K 10W resistor and work down until the tube lights and remains stable.
- If you have trouble with the tube not starting easily, use a longer anode lead that is wrapped around the tube.
- Depending on the transformer you use, the circuit may or may not work. I cannot guarantee the operation of this circuit. Build at your own risk. Some transformers contain very few secondary windings which will quickly saturate the core and basically act like a direct short. The more secondary windings (that is, primary in this circuit) the better.
Thursday, July 7, 2011
LASER Power Supply
Posted by saad at 8:03 AM