How do you charge the condenser for a non HEI ignition on a 1970 Chevy 350?

If you're asking how to change the condenser, it is under the rotor. Remove cap and rotor, remove condenser wire from contact set (either held in place with a screw or spring tension), remove the screw that holds the condenser bracket ( magnet or screw starter is very helpful), then reverse procedure to install new condenser.