'59 Gibson GA-30 Invader Power Cord

[LAexpatriot]

I have an all original Tweed GA-30 Invader and it still has a 2 prong power cord. I am gigging with the amp and feel a little unsafe using it without changing it to a 3 prong cord. I am wondering how I would go about doing this.

Any help would be great.

Thanks,
RT

[Jazz P Bass]

3 wire power cord

On the schematic . the original power cord goes through a switch (one wire) to the power transformer and then out through a fuse (wire #2).
This can be wired the same.
The green wire on the new power cord attaches to the amplifier chassis.
Amp schematic:http://www.drtube.com/schematics/gibson/ga-30.gif