Watts is Volts X Amps. Fewer Volts means more Amps. More Amps means more work for power supply, leading to fewer Volts. Fewer Volts means ...( you get the picture).
Sent from my iPhone ...nr4c. bill > On Jun 30, 2020, at 8:37 PM, Mike Kopacki <[email protected]> wrote: > > I didn’t have ring connectors big enough but I did have spade connectors. I > crimped and soldered them but there was no change in the voltage readings > during receive and transmit. > > Is it possible that the power supply is failing? > > Why, if the voltage drops during transmit to 11.6V, does the radio still put > out 100W on 30, 40 and 80 meters? > > Thanks, > Mike NJ2OM > >> On Jun 30, 2020, at 6:55 PM, Don Wilhelm <[email protected]> wrote: >> >> Mike, >> >> The red and black assembly is an Anderson Power Pole connector - commonly >> called APP. >> >> For the small receive current drawn, the voltage drop in the wire and >> connectors should be close to zero, so the 0.2 volts is significant for #12 >> wire unless there is something not properly tightened on the connectors. >> The drop will be more substantial with the increased current during transmit >> at 100 watts. >> >> Banana plugs and jacks can be used to carry a heavy current, but some of the >> ones I have seen have a poor contact method of fastening the wire to the >> banana plugs - properly installed wires on banana plugs are good for up to >> 30 to 50 amps. Is there any way you can connect ring terminals onto those >> power supply terminals? Like removing the outer nuts from the terminals - >> if so then switch to the ring terminals. >> >> 73, >> Don W3FPR >> >>>> On 6/30/2020 6:21 PM, Mike Kopacki wrote: >>> >>> Don, don’t know what you mean by the APP assembly. >>> >>> I can only see one metal part on the inside of the red and black connectors >>> that plug into the K2. I assume that is the “contact blade”? I see >>> nothing else on the inside. >>> >>> But here is a possible problem, that I will throw out, knowing full well >>> that some will think I am not very smart…..I had to buy banana plugs to >>> make the power cable, which is part of the KPA-100 assembly instructions. >>> When I received them from MFJ, model MFJ-7713, it was a solderless type >>> that I had never seen before. I talked to three people at MFJ, none could >>> explain how the wire attached to the plug. The third guy hung up on me. >>> >>> So I connected the wire to the plug the only way I could see, but the >>> configuration of the plug still eludes me. >>> >>> The P/S output is 13.6V. I’m seeing 13.1V at the K2. If the normal drop >>> is .3V, it should read 13.3V at t ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
