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- Resistance:
- Resistor colour code calculator
- LED series resistor calculator
- Series / parallel resistor calculator
- Capacitance:
- Capacitance unit converter
- Charge / Energy calculator
- Capacitor code calculator
- Series / parallel capacitor calculator
- Inductance:
- Convert colour code to inductance
- Convert inductance to colour code
- Other:
- Ohm Law calculator
- Potential Divider calculator
- Wheatstone Bridge calculator
- Power (wattage) calculator
- Reactance calculator
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Links - Lighting & Sound
Books | Educational & Hobby Sites | Components, Kits & Test Equipment | Design & Manufacturing | Products & Other Equipment | Lighting & Sound | Magazines | Projects | Software
Blue Room Technical Forum - Forum covering all aspects of technical theatre, including lighting, sound, staging, rigging, power distribution etc.
ComClone - Clone of the industry standard intercom system compatible with Clearcom, Tecpro and similar systems. Includes signal function.
ChromaKinetics - Free open source DMX lighting control software for theatrical lighting. Works with several USB to DMX converters, including Entec.
Elliot Sound Products - Plans for sound and lighting projects. Includes details of a 0-10V stage lighting control system.
FreeStyler - Free DMX512 control software for PC. Supports many freely available DMX512 dongles. Site includes links to supported Parallel and USB to DMX512 dongles.
N5TLE Homepage - Useful DMX512 links and projects including PIC based DMX512 transmitter and receiver.
Planet Christmas - Information on computerised Christmas light displays, including technical information.
ProKit - Hire & sales of a complete range of professional broadcast equipment including cameras, audio equipment, lighting, monitors & more.
Stage Lighting Tech. Pages - Lots of useful information relating to theatre lighting, including connector pin-outs, DMX512 info. etc.