Are you interested in making your life a little easier. The K20 is nice little project that I found at www.K1EL.com. You may think that using a keyboard to sent morse code is unfair, the keyboard and program in the controller are doing all the work! Well, I can imagine the old timers saying the same thing about the Bug or Iambic Keyers. If we stand by the doctrine of accuracy over speed then the keyboard keyer is the perfect response. If you've ever heard me on the air you'd know what I mean. One more point to make before I get to the project, I still enjoy listening and copying by ear, and I'll never give up my Bencher Straight Key.
I've ordered the parts from two sources. The first is K1EL and the second is Mouser Electronics. K1EL sells the three chips which are the brain of the K20 (he even has a circuit board and kit, but they are currently out of prodcution.) From Mouser I ordered everything else, except the circuit board.
# | Mouser Part # | Manufacture Part # and Description | Qu | $Each | $Total |
1. | 606-CMP100 | CMP100 Chicago Miniature LED Hardware T-1 LED MTG CLIP | 5 | $0.160 | $0.800 |
2. | 163-4304 | 163-4304 DGS DC Power Jacks PANEL MOUNT 2.1mm | 1 | $1.610 | $1.610 |
3. | 1710-2131 | 1710-2131 DGS DC Power Plugs DC POWER 2.1mm | 1 | $0.650 | $0.650 |
4. | 161-3402 | 161-3402 DGS Phone Jacks PHONE 3.5mm STEREO | 4 | $0.430 | $1.720 |
5. | 610-PN2222A | PN2222A Central Transistors TO-92 NPN GEN PUR SW | 1 | $0.180 | $0.180 |
6. | 161-2206 | 161-2206 DGS DIN Jacks MINI DIN PCB 6 PIN | 1 | $0.880 | $0.880 |
7. | 140-NPAL100V47 | 140-NPAL100V47 Xicon Non-Polar Axial Electrolytic Capacitors 100V 47uF 10% | 1 | $2.790 | $2.790 |
8. | 575-113308 | 1 10-13-308-41-001 Mill-Max Low Profile IC Sockets 8P GLD PIN GLD CONT | 3 | $0.350 | $1.050 |
9. | 140-50P2-102K | 140-50P2-102K Xicon Ceramic Disc Capacitors 50V,Y5P,1000PFD,10% | 1 | $0.080 | $0.080 |
>10. | 140-50Q5-473Z | 140-50Q5-473Z Xicon Ceramic Disc Capacitors 50V,Z5U,47000PF,Z | 2 | $0.130 | $0.260 |
11. | 140-50Q5-103Z | 140-50Q5-103Z Xicon Ceramic Disc Capacitors 50V,Z5U,10000PF,Z | 3 | $0.075 | $0.225 |
12. | 80-CK14BR104K | C192K104K1R5CA Kemet Conformally Coated Axial Ceramic Capacitors 100V .1uF 10% | 3 | $0.620 | $1.860 |
13. | 30BJ250-100 | 30BJ250-100 Xicon 1/4W 5% Carbon Composition Resistors 1/4W BR,BK,BR,GD | 1 | $0.220 | $0.220 |
14. | 30BJ250-330K | 30BJ250-330K Xicon 1/4W 5% Carbon Composition Resistors 1/4W OR,OR,YW,GD | 1 | $0.220 | $0.220 |
15. | 30BJ250-4.7K | 30BJ250-4.7K Xicon 1/4W 5% Carbon Composition Resistors 1/4W YW,PR,RD,GD | 3 | $0.220 | $0.660 |
16. | 30BJ250-33K | 30BJ250-33K Xicon 1/4W 5% Carbon Composition Resistors 1/4W OR,OR,OR,GD | 1 | $0.220 | $0.220 |
17. | 30BJ250-10K | 30BJ250-10K Xicon 1/4W 5% Carbon Composition Resistors 1/4W BR,BK,OR,GD | 2 | $0.220 | $0.440 |
18. | 625-2N7000 | 2N7000 General Semi MOSFET Transistors TO-92 N-CH 60V 0.3A | 2 | $0.230 | $0.460 |
19. | 512-LM7805CT | LM7805CT Fairchild Regulators 1A Pos Vol Reg | 1 | $0.450 | $0.450 |