I'm considering the best way to approach the mods to my KSYN3 board. Doing nothing or buying a second receiver are possibilities (the second receiver's up-to-date KSYN3 could be installed as the main one). But if I decide to mod my KSYN3 without spending a lot, a question arises.
Left over from an earlier mod kit K3AFMDKT I have two SMD and two axial-lead 51-ohm resistors. In the instructions for installation of K3AFMDKT http://www.elecraft.com/K3/mods/K3_AF_Stage_Upgrade_Instructions_Rev_B.pdf two possibilities are listed for paralleling the 51-ohm added resistors with the SMD resistors already present: (1) stacking the added SMD resistors on top of the ones already present; and (2) adding axial-lead resistors. Pictures of the two approaches are on page 10 of that pdf. The instructions for the most recent KSYN3 mod http://www.elecraft.com/K3/mods/KSYN3%20DDS%20Gain%20Modification.pdf mention only the second of these two possibilities for paralleling a new 51-ohm resistor with the resistor already present on the KSYN3 board. Is there some reason why the SMD-stacking approach cannot be used on KSYN3? I was pleased with the neat appearance of the previous stackings. The axial-lead resistors in the K3AFMDKT were specified to be 1/4 watt, so may be too big for use in the most recent KSYN3 mod, which requires 1/8 watt, probably for clearance. So I'm really asking if I need to get a new axial resistor, or can I use the SMD I already have--if I decide to mod my KSYN3. 73, Paul W8TM ______________________________________________________________ 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
