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Re: [OM] T20 inop on Auto

Subject: Re: [OM] T20 inop on Auto
From: HI100@xxxxxxx
Date: Wed, 17 Jan 2001 23:20:36 EST
Clint wrote:

>> The T-20 uses a "quench" tube to control the output, meaning it 
effectively "dumps" full power every time it's fired.  That means the recycle 
time will not vary significantly.
<<

Hi Clint,'
          the e SIF archives disagrees with you on this one :
" Energy-saving, series-circuit type, system electronic flash unit. "

It is also pretty easy to test and show that the recycle time varies with 
distance on both ttl auto and flash sensor auto. 

You also know from all the waiting when you use it, if you have set it near 
it's limit!

My memory is that it is a conventional SCR energy saving circuit. Even the 
A16 flash in the XA is an SCR unit.

                  Regards,
                 Tim Hughes
                >>Hi100@xxxxxxx<<

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