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F-Stop Timer: 1/10th stop, test strips, burns - $68, kit
F-Stop Timer Kit
FEATURES o Exposures timed in 1/10th stop increments o 9.9 stop range: 1.0 to 955 seconds o Test strips in 0.1, 0.2, ... 0.9, 1.0, 2.0 and 3.0 stop increments o Multiple burns at tenth and whole stop values o Simple and intuitive operation, no doubled-up key functions o 10A relay rated at 300W incandescent, safe for cold-light heads o Foot-switch input (foot switch is user supplied) o High quality components: UL/CSA rated; switches specified for 50,000,000 cycles; relay for 20,000,000 cycles; long-life capacitors rated for 105C. All name brand parts: Microchip, Fairchild, Bournes, Cherry, Omron, Microtran, Panasonic, Vishay ... AVAILABILITY $68 - Kit of all electronic parts: o Pre-programmed microprocessor o All electronic parts: LEDs, resistors, capacitors, transistors, keyswitches, relay, transformer, power cord, AC outlets... o PC board artwork o Schematic, assembly instructions, operators' manual $20 - Printed circuit boards $4 + actual post office charges for shipping email for a full color brochu -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. |
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