Author Topic: Video amplifier splitter by transistor  (Read 1199 times)

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Offline Halford

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Video amplifier splitter by transistor
« on: November 24, 2015, 09:26:13 am »
Hi everyone once again.

I'm trying to copy a small design, a Video amplifier splitter by transistor, so that I can hook up my video googles and my monitor together while flying my RC helicopter.

I found a nice design that will fit into a very small pcb, so it's perfect for my portable ground station, but there is a connection that I do not understand.

the VR2(2k2 in the middle lower part of cirquit) is a potentiometer, but it just hooks up 2 legs out of 3 (not like VR1 on the left).

Is it just using 2 legs to make it a variable resistance or it just doesn't show the full circuit? or is it me just been a noob not understanding?

here is a pic of the schematics, thank you for your help

 

Offline Dave

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Re: Video amplifier splitter by transistor
« Reply #1 on: November 24, 2015, 09:42:22 am »
This might help.
<fellbuendel> it's arduino, you're not supposed to know anything about what you're doing
<fellbuendel> if you knew, you wouldn't be using it
 

Offline Halford

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Re: Video amplifier splitter by transistor
« Reply #2 on: November 24, 2015, 09:48:53 am »
indeed, thanks a lot
 


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