I own a few Harris AM-7223 amplifiers (military surplus). I want to sell them, maybe will keep one. They are all supposed to be in a working condition. They will sell much better if they have power cords. They require special power cables, with a round plug. The power cord receptable on the unit is round and has a few pins sticking out. I am looking for the most practical way of making a jury-rigged power cable for this unit at low cost. I already know which pin is ground, which is neutral, and which is hot. The question is, what is the most practical way of connecting a power cable.
I found this on some website: ``J-1 is the power jack. Pin P is Ground. Pin J is Hot. Pin A is Common. If you look on the inside of the jack you will see the Green, Black and White wires going to these pins J .''
I have a few options:
- Open the unit and put in a power cable with ring terminals through a ventilation in the unit and connect ring terminals to the proper inside terminals. That will make a perfectly well working, although not very sightly, unit.
1a. Remove the round cord receptacle and put in a wooden plug with a hole in the center, and the power cord would go through it (instead of through ventilation holes).
- Solder a power cable to the connector pins. Also unsightly and also rather decent.
- Custom make a real plug. I would not mind doing it, all it requires is a piece of insulating material of necessary diameter (would wood work?), a template, and a drill press (which I have). Then I somehow need to insert little tubes to go over the pins, seems like a lot of hassle.
I am tempted to go with option number 1 or 1a for simplicity and reliability, but want to get some opinions.