Tach filter needed for ready to run distributor?

The cct below works. I use a piece of plastic tube...or a medicine pill bottle & shove the componnts inside, & bring out 4 wires for the connection. I then fill the bottle with neutral cure silicon which keeps the components secure. I tie wrap the bottle to the harness under the dash.

View attachment 1716361973

Thanks Bewy! I'll gather up the components and give it a shot.

Just so I'm straight here, I'll have two separate switched ignition sources going to the tach? One to power the tach and the second for the filter?