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- May 5, 2008
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thank you all who have helped me
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SPECIFICATIONS
Threshold Current: 30mA
Operating Voltage: 2.3V
Operating Current: 45mA
Optical Power: 10mW
LD Reverse Voltage: 2V
PD Reverse Voltage: 10V
Size: TO-18 (5.6mm dia)
rog8811 said:@Daedal, Thankyou for doing that...I have just ordered some regulators.
When it comes to other components I assume that a 200ohm pot would suffice? Will any signal diode do, I have a shed load of 1N4148's.
This next question will really show my ignorance.....But, if this circuit were to be tested on a standard led (rather than the precious laser diode) would the charecteristics, IE current draw, be anywhere near similar?
Regards rog8811
*Hope the mods stick this in the sticky area with sticky stuff...I will be stuck when it falls down the page *
*edit....years after posting this, and having built dozens of these circuits.. easy to follow picture follows
Component | DigiKey | RadioShack | Approximate Price |
Capacitor | 1 2 | 1 | ~ $1 |
LM317 | 1 2 | 1 | ~ $2 |
Potentiometer | 1 | 1 | ~ $1 |
Resistors | 1 | 1 | Pennies |
Silicon Diodes | 1 | 1 | Pennies |