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      Prayers for a longtime Member   11/05/2017

      The Church mass shooting that happened today, was Peggy Wardens Church. She was one of the people killed today and her grandson was shot in the arm and is in surgery. Lets keep her in our thoughts and prayers. I made a topic in the "Cabin" I will keep everyone updated as I get information.
     
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Lechwe

Ouch!!!!!!!!!

7 posts in this topic

I was modifying my first 380 last night and got zapped by the cap. I also tore the ribbon cable for the display so I have to send it in for repair. How do I keep from doing this again?

 

Thanks

 

:blowup:

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Radio Shack has 2-packs of 100-ohm, 1-watt MOF resistors, RS part number 271-152. If they don't have them, you could also use the 271-153 which are 1000-ohm. These should serve the purpose.

 

One should work fine, but since you bought two, you may as well wire the two resistors in series, and solder a piece of insulated wire on each end of the pair of resistors (6 or 8 inches should be plenty). Put heat-shrink over the resistors and the bare wires, and put an insulated alligator clip on the ends of the wires.

 

It'll only take a few seconds (max) to discharge the flash cap to a safe value when you clip the alligator clips to the two capacitor leads. If the leads slip and short out, you will have an exciting *BANG*.

 

Note: if the flash cap is charged to 330 volts, the pair of 100-ohm resistors will be momentarily dissipating over 500 watts! I have never had a problem using metal-oxide-film (MOF) resistors for this sort of thing, but carbon-film resistors will evaporate into a puff of smoke if you try it with them. So, the type of resistor is important.

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I like using fingers. Ouchhh. No Jon has the right idea but then I tape them up on the board when I have it open. MC. :cheers:

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