Barry, Yes, this is sometimes a problem - in all cases, the lockwasher between the spacer and the board must be present to make the standoff the correct height. I have omitted the second lockwasher in some cases, and in others, I have used already compressed lockwashers that have been laying on my workbench. Your technique of squashing the lockwashers with vise-grips was a good one I am glad you were ultimately successful.
73, Don W3FPR On 4/7/2011 7:52 AM, K8QI wrote: > I am currently building Serial # 2520. Going well with no problems found > during the testing of Phase #1 or #2. Thanks to all for the great > suggestions to a new kit builder. > > Figure 24 shows the installation of the standoff using 2 split washers, One > below and one on top of the board. I am not able to get the threads to > catch using the 2 washers. So I only used the one on the top of the board > to maintain the correct heigth of the standoff. I am a little concerned > that the threads from the 3/16 Pan head and the Nylon 1/4 Flat Head may > contact inside the standoff and result in the Power Amplifier Q6 being loose > and not making good contact with the Thermal Pad. Did anyone else have this > problem? What was your solution? > > During the solder process for the Power Transistor Q6, the instructions > state to "Temporarily secure Q6 with a 4-40 flat head screw....." My > question is should I use the nylon flat head or the metal flat head for this > solder step. Any possibility of deforming the nylon flat head during the > soldering process due to heat transfer? My thought is no, use the nylon. > Thought I would ask, since I already have the question above. > > If all goes well, I hope to have my new KX1 on the air on 20 and 40 meters > this weekend. > > Thanks and 73, > > Barry K8QI > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
