Check out some of my gizmos:
Note: Use this information at your own risk.
No guarantees on the accuracy of the schematics, code, etc.
Laser Power Meter
Power supply for EG&G Prinston Applied Research Model 5113 pre-amp
Stepper Motor Driver for SPEX 1702/04 Spectrometer
Linear Ramp Generator
20W 68MHz Laser Q-Switch Driver
High Voltage Switch (450V)
Pulse Stretcher
Slightly different Pulse Stretcher (not as fast)
Auto Fill Circuit for Laser Cooling Loop (W/Ethernet Data Logging)
Four Zone Temperature Controller with 0.01C Stability
Laser Temperature Controller using Stepper Motor
Linear 3.3V LED driver
Thermopile Amplifier
Lockin Amplifier
Laser Beam Blocker
Displacement Measurement System
Temperature to RS232 Converter
Laser Diode Controller
Dual 16 Channel Opto-Isolator
Solar Cell Power Meter
Tiny Dual Photodiode Amp
Tiny Temperature Controller
Tiny Temperature Controller version 2/3
12V 6.7A noise filter for CCD spectrometer power supply