> How and with what do you measure 
> [flash voltages].??

Simple, put your tongue on the trigger and shoe spring (you may have to
suck), charge up the flash and then guess the voltage before you pass out.
:-)
OK  - Not really. I just hung a multimeter over the two terminals once the
flash was charged.
Simon





-----Original Message-----
From: Doug Franklin [mailto:[EMAIL PROTECTED]] 
Sent: Tuesday, 27 August 2002 9:20 PM
To: [EMAIL PROTECTED]
Subject: Re: Flash trigger voltage & Pentax cameras


On Tue, 27 Aug 2002 07:16:26 -0400, David Brooks wrote:

> I cannot answer your question Simon,but have 
> one for you.How and with what do you measure 
> [flash voltages].??

1) Get a volt meter, or VOM meter (Volts-Ohms-Milliamps).

2) Put fresh batteries in your flash and turn it on.

3) Put the black lead of the volt meter on the center contact on the
bottom of the flash.

4) Touch the red lead to the other contacts on the flash, one at a
time.  At least one of them will show a voltage difference.  It could
range from a couple of volts to well over 200 volts.

This voltage is present on the contacts of the flash when the flash is
on and energized.  IIRC, the camera dead-shorts these contacts to
trigger the flash.  I'm not sure how energy is used on the other
contacts, like TTL, digital, etc.

TTYL, DougF KG4LMZ

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