Has anyone ever used an LM4950 amp?

[MrDEB]

have a use for a small amp (my CRITTER RIDDER for automotive use) and found the LM4950 for50 cents each
7 watt amp on 12 volts. the 10% distortion doesn't concern me as the use intended is to chase deer away from the road.

 

[mneary]

I haven't used it, but it looks like performance starts to fall apart pretty quickly as frequency rises. I know distortion isn't important but if you're using frequencies at the high end beware that dissipation might also rise.

 

[MrDEB]

The frequencies being used are low

2khz to 6 khz back n forth, up down but within that range.
the deer seem to not like it but further testing is needed.
waiting for parts.

 

[solis365]

wouldnt you also be able to hear those frequencies? or is it just so far away from your house that you dont mind? can deer hear stuff beyond 20khz?

 

[MrDEB]

Deer hearing studies

deer can hear ultrasonic frequencies BUT the best frequencies that are optimum for a deer to hear are between 2khz to 8 khz./
yes humans can hear 2 - 8 khz.
Would you rather hear the unit or hit a deer?
Them deer whistles are useless as studies done at University of Connecticut show.