The <---> control turns and works, but requires 8x more force than the other pots to turn. I took off the left side panel and the control seems to be un-accessible under several PCB's.. It seems there's very little structural frame work, such that it requires the right panel to even stay together (and this thing is in great condition).
1) When I decide to carefully pull out the rest, will De-oxit be the best spray to use?
It has no 50 ohm termination switch on either channel..
2) Will 2x 100 ohm SMT resistors soldered inside the barrel of an old Arc-Net "T" cause signal reflection below 20Mhz?