Xenon strobe for sync rotary

• To: tesla-at-pupman-dot-com
• Subject: Xenon strobe for sync rotary
• From: "R.E.Burnett" <R.E.Burnett-at-newcastle.ac.uk> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 28 Mar 2000 16:45:33 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi guys,

In UK and Europe a Xenon strobe kit is available,  manufactured by
Velleman Electronics.  This unit is sold as a variable speed strobe
and can be bought from Maplin Electronics in UK for only 15 pounds.

The design is really simple and can be converted for synchronous
strobe operation by removing R2 and RV1,  and fitting an extra diode
and resistor connected as shown below:

Rectifier end  ------->!-------/\/\/\/-----  + terminal of cap C2
of resistor R1      1N4007      220K
				350V

This causes the Xenon tube to fire every two full supply cycles:
ie. 25Hz for 50Hz countries,  (Haven't tried it on 60Hz yet.)
Ideal for viewing both 2 pole and 4 pole synchronous rotaries.
Even in well lit areas,  the strobe is bright enough to make
a synchronous disk appear stationary.

For anyone serious about sync gaps I think it's well worth the cash.

						Cheers,

						-Richie,

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