Message 25573 in TECHNI.WW
From: G8MNY
Date: Thu, 09 Jul 26 08:17:00 Z
Newsgroups: TECHNI.WW
Subject: Flashing LED lamp driver
Message-ID: <64502_GB7CIP>
Path: N2MH4|DK0WUE|PI8ZTM|CX2SA|OK2PEN|GB7CIP
R:260709/0824Z 33455@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
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From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (New Jan 14)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
Here is a small circuit I used to flash an existing panel lamp on a broadcast
mixing desk.
* Optional components to remove pulses from supply rail
HOW IT WORKS
The flashimg LED draws only small current until it lights. When on the PNP is
driven hard to give power to the panel lamp.
This a much simpler solution than an Astable/555 timer/Pic etc.
See Tech bul "Towing & Reversing Beeper"
Why Don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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