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G0TEZ > LED 30.07.13 08:39l 28 Lines 808 Bytes #999 (0) @ WW
BID : 7B0260G0TEZ
Read: GUEST
Subj: At last ! The easy way :)
Path: IZ3LSV<ED1ZAC<CX2SA<GB7CIP
Sent: 130730/0332Z @:GB7CIP.#32.GBR.EU #:31147 [Caterham Surrey GBR] $:7B0260G0
From: G0TEZ@GB7CIP.#32.GBR.EU
To : LED@WW
An LED , like an ordinary diode has a very high Z one way and almost zero the
other. If a diode is built in then forward resistance is higher.
As you say, all it takes is an ordinary meter on the low Ohms range.
I had a pushbike with hi brightness LEDs which flashed a couple of years ago,
They would also flash, all built in.
The simplest oscilator you can make is a resistor feeding a capacitor which
sddenly discharges via a diode across the cap. You can work out the flash rate
from the CR time (remember, basic electronics ?)
A flashing LED costs < UKP 1.00 and they have been around for years.
Congratulations Warren - have a new licence.
73 - Ian, G0TEZ @ GB7CIP
Message timed: 04:18 on 2013-Jul-30 GMT+1
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