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Turbografx16 Help me pick the correct parts! (please)

Esplanade

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I'm in the middle of trying to make the circuit below (supplied by HD Retrovison) to get a proper composite video signal out of the ext port of the PC Engine but i'm now at a loss.

I have everything up to the inductor but how would i go about finding out what type i need, a quick google shows thats its a ferrite bead but does it matter much past that what type i need or do i need a specific kind?

Schematics

Any help would be appreciated, thanks
 

toze3

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I can't help, but i got some doubts.

Why not going to RGB mod?

I'm not sure, but the Vin pin should be to connect a power source in the PC-E and not feed by a regular plug.
 

Esplanade

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I can't help, but i got some doubts.

Why not going to RGB mod?

I'm not sure, but the Vin pin should be to connect a power source in the PC-E and not feed by a regular plug.

There is going to be a RGB section to this but I also want a proper composite signal as well.
The schematic is a handrawn copy of the av booster by hd retrovision so I don't think I have any doubts about it being wrong
 
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