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Construction Notes

•  KPA100 Assembly Note #1 (Mistaking the FT50-43 core for the T50-10 black core.)

• KPA100 Detailed Assembly Pictures from PA3CEV

• Step by Step K2 Assembly pictures, by Eric, PA3CEV

• Step by Step K1 and K2 assembly pictures at N7TX's great web site.

• The W8KC Step by Step KX1 Photo Gallery

• Pre Wound Toroids for the K1, K2, KPA100 and accessories from AA3WF

• Soldering Tutorial (pdf): What to do, and what NOT to do to get excellent solder joints. By Tom, N0SS

• Summary of Available Soldering Stations (N0SS)

• Capacitor Identification and Marking Chart

• Trim Cap Adjustment Drawing

• A note to first time builders contemplating the K2, by N1OKL

• Recommended Tools

• Ask Dr. Solder

• Soldering Ground Wires to Those Pesky Crystal Cans

• K2 Filter Adjustment and Mod App. Notes

• Is it OK to use "Flux Off" on the K2?

• LCD Display Pins Seem Too Short?

• LED Backlight Diffuser: DO NOT remove its front paper cover.

• Adjusting C22 to calibrate the K2's Frequency Display.(updated)

• There is no need to use the big lock washer when mounting the main K2 tuning knob encoder.

• Resetting your K2 (When '5757' doesn't work!)

• K2 Repair and Warranty Information  (Please read before sending your K2 in for repair.)

Torrid Toroid Topics..

• Fear of Toroids? Pictures of Wound K2 Toroids 

• Winding Toroids - It isn't really that tough!  WT9W

• Toroid Winding Questions

• Toroid Wire Tinning Notes AB7MY

• Winding T2 on the K2 for Maximum Power Output on 12/10M, by AB7MY

Test and Measurement Topics

• Cheap and Dirty Signal Tracing for the K1  N0SS (pdf)
• Cheap and Dirty Signal Tracing for the K2  N0SS (pdf)
• Resistance check values may vary from those in the manual if you use an older Analog meter instead of a newer digital meter. Also, >50K etc can read as open on some meters, which is OK.

More Pictures

• K2 Front Panel Pictures

• K2 Control Board Pictures

• K2 -Other Internal Pictures

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