I'm in the process of building a new two wire beverage control box to replace the one that Thor destroyed the other day. Fortunately the coax lead in was disconnected at the time! The top of the box has not been recovered and much of the contents vaporized. The inside of the box has lots of scorch marks...and not much else. The reflection transformer, some 580 feet away, appears to be unaffected as does the 450 ohm twin lead.
I plan to do a PC board for the new control box and so I had a look at how the DX Engineering box was laid out. I also had a look at the board made by RA6LBS. Both of these boards appear to have an electrolytic capacitor installed. On both boards the electrolytic appears to be associated with the direction switching relay. None of the two wire beverage diagrams that I have seen have such a cap and I wonder what its function is and how it is connected in the circuit. I am told that the value is 100 mfd @ 50 volts. Apparently the cap isn't necessary, but since I have a few in my junk box, this might be an opportunity to put one of them to use! 73, -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
