[Laser] laser help

[Jim Moss]

leave the optional 10K resistor out of the circuit.
That way you have an open collector transistor.
Then connect the emitter to the lower voltage side of the switch and the
collector to the higher voltage side of the switch.

Jim



--- Brent <hamfreak2002 at gmail.com> wrote:

> Ok, built the occilaor part of this webpage 
> http://www.qsl.net/wb9ajz/laser/data/cheepo.txt
> 
> was wondering if I directly connect the hot side of the switch to keys 
> laser nad the ground to ground.. when I measure it with a volt meter it 
> says 8 volts? am I doing something wrong.... will that kill the laser?
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