[Boatanchors] WTB: Allen Bradley Potentiometer 500K Audio Taper and Couple Other Parts

[Whitebear1122]

I thought I had all the parts for my HBR-12 receiver project but I came up short on a few.

Looking for an Allen-Bradley Type J 500K audio taper potentiometer with a shaft for knob.  I am seeking Allen-Bradley for two reasons, one is that I am trying to build my HBR with American made parts, and the other reason is that I used to work at Allen Bradley so I'm having fun putting all AB pots on the front panel.

ALso looking for an American made panel bushing for a 1/4" hole so pass a 3/8" shaft through and a headphone jack with just a simple ground and tip connection.  

I know I can buy new Chinese made parts but again I'm trying to build it with American parts as much as possible.   So far the cabinet, both chassis's, knobs, IF's, tube sockets and shields, transformer, chokes, tubes, meter ( a nice looking DX-100 meter), variable capacitors, are American made.   I doubt if the new carbon comp resistors and silver mica and disc caps are American.

Thanks.  73, Scott WA9WFA