There was dissonance in the church when the pianist and other musicians had to hunt for the key their Music Leader was playing in. Dick's gadget took the guesswork out of the guitar, the meandering out of the mandolin and the pondering out of the piano. The Music Leader communicates the key to the others by setting the display on his Sending Unit via pushbutton or the foot switch, and the Remote Units replicate that display for everyone else. Now, they're all in one A chord (or F, or C, or...).
Build Instructions | View Parts List | Post a Comment
Allied Part #
7-Segment Display, Common Anode, Right Decimal, 0.8 inch
7-Segment Display, Common Anode, Right Decimal, 13 mm
2N7000 N-channel MOSFET
2N2222 NPN transistor
1N4742A Zener, 12V 1W
CD4001 CMOS Quad 2-NOR
CD4002 CMOS Dual 4-NOR
CD4013 CMOS Dual D-flop
CD4051 CMOS 8-ch MUX/DEMUX
CD4070 CMOS Quad XOR
CD4073 CMOS Triple 3-AND
CD4081 CMOS Quad 2-NAND
CD4093 CMOS Quad 2-NAND, Schmitt Trigger
CD4099 CMOS 1 of 8 Decoder/Latch
CD4516 CMOS 4b Up/Down Counter
MC14526 CMOS 4b Presettable Down Counter
RJ25 Right Angle jack w/ panel stops
3.5 mm stereo phone jack (needs nut & washer)
3.5 mm stereo phone plug w/ strain relief
Push-button switch, NO, bushing mount w/ nut & washer
Red Tail light tape (Automotive store item) Additional hardware & passive components, See Text
Get Build Instructions†
The world record for a two-seat sports car tumbled last month, as a Hennessey Venom GT hit a max speed of 270 mph.
A piece of metal worn on your finger will allow you to control all your smart devices.
This book introduces children to coding fundamentals -- such as sequences, loops, and conditionals.
Students at Cedarville University are building and testing bicycle frames made from wood.
This Gadget Freak review looks at Boeing's trusted smartphone device and a solar-powered light tracker designed to help improve your health.
Datasheets.com Parts Search
185 million searchable parts
(please enter a part number or hit search to begin)