Thank you all for your responses. There are two clubs near me -- one of which I joined last week and the other I will be joining in two weeks (just a function of the meeting schedules). I feel a little uncomfortable showing up at a club meeting the very first time and asking people to lend me tools, etc.
Based on the schematic, I'm confident that I can put together the RF Probe kit that comes with the K2. My problem is knowing what parts to buy, where to buy them, and how to mount the thing. The RF Probe kit answers the first two questions. The web sites I've looked at seem to imply that I need to put the probe in some sort of metal shielding (thus the copper pipe for example), but some of your responses seem to imply that I can just leave it in the open. Is that correct? Can I just leave the circuitry in the open? Or do I have to mount it in something -- in which case I'm back to the problem of what I mount it inside of and how to mount it inside (e.g., insulators, mounting hardware). As for soldering, I've inspected and resoldered every solder point related to band 2 of the board (the band that's not working). I can't see anything wrong with any of them using a magnifying glass. It's also been suggested to me that the toroid leads weren't properly stripped and thus are not making connection with the PC board. In order to test my soldering, I've tested continuity from one lead of each band 2 specific component to the lead of the next band 2 specific component in the schematic. I did this from the actual component leads on the top of the board, and not from the solder joint on the bottom of the board. My theory in doing this is that in order for good continuity to exist, the current from my ohmmeter has to flow from the lead through the solder joint, through the channel on the PC board itself to the solder joint of the next component, through the solder joint of the next component, and then up that component's lead to the top of the board. Testing this way, all of my solder joints tested out okay -- even the toroids. To further test the toroids, I also tested from "outbound" lead of the component previous to the toroid in the circuit to the "inbound" lead of the next component in the circuit. In theory, the current from my ohmmeter would have to flow from the "outbound" lead of the previous component, down through its solder joint, through the channel on the PC board, into the solder joint of the toroid being tested, then through that solder joint and up into the toroid, out the toroid's other lead and down into that lead's solder joint, through another channel on the PC board to the "inbound" lead of the next component, through the solder joint of that next component's "inbound" lead, and then into the "inbound" lead of that next component. Other than a lot of words to describe it, I came up with no problems. Do these test approaches make any sense?? Note: from reading the schematic, it appears to me that the band 2 specific components are well isolated by latching relays, thus preventing a false continuity reading because the current is flowing through a different path (other than what I think I'm testing). I've also tested the pins of the relays to make sure that there isn't any cross-soldering. Also, thank you all for the link to http://www.mtechnologies.com/ohr/parts.htm Jon KB1QBZ _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
