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Tech Head - The Technology Section
The Work Bench and Soldering Station
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<blockquote data-quote="mhku" data-source="post: 522339" data-attributes="member: 190842"><p>It's alive! 'O'</p><p></p><p>The tingle may have been closer to 140-170V if it's the same as the trigger voltage (Vivitar 2800 _http://www.botzilla.com/photo/strobeVolts.html) which is why it won't be physically attached to the camera. Doing the trigger voltage modification might be next. I was lucky it the flash with the huge capactitor..</p><p></p><p>Anyway here's the (almost) finished article- the red cap covers the potentiometer which is attached with blue tac at the moment. Output is variable although I've read a 250k potentiometer is better (_http://www.krebsmicro.com/VIV283/index.html).</p><p></p><p>Total cost was:</p><p></p><p>flash - £3.21</p><p>potentiometer - 70p</p><p>knob - 94p</p><p>milk carton lid - free</p><p></p><p>A physically smaller potentiometer would have made the task easier and quicker.</p></blockquote><p></p>
[QUOTE="mhku, post: 522339, member: 190842"] It's alive! 'O' The tingle may have been closer to 140-170V if it's the same as the trigger voltage (Vivitar 2800 _http://www.botzilla.com/photo/strobeVolts.html) which is why it won't be physically attached to the camera. Doing the trigger voltage modification might be next. I was lucky it the flash with the huge capactitor.. Anyway here's the (almost) finished article- the red cap covers the potentiometer which is attached with blue tac at the moment. Output is variable although I've read a 250k potentiometer is better (_http://www.krebsmicro.com/VIV283/index.html). Total cost was: flash - £3.21 potentiometer - 70p knob - 94p milk carton lid - free A physically smaller potentiometer would have made the task easier and quicker. [/QUOTE]
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The Work Bench and Soldering Station
Any electronics experts here?
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