Schematics By The Book – Metronome

Schematics By The Book – Metronome


Schematics By The Book – Metronome

Schematics By The Book is a series highlighting educational and practice circuits from our favorite electronics books. Each post contains a link to the book, a copy of the schematic, and a full current BOM of through-hole parts you can use for prototyping.

Publication: Electronic Formulas, Symbols & Circuits
Author: Forrest Mims
Circuit: Metronome
Page: 122
KiCad Schematic File: Metronome KiCad Schematic
BOM CSV: metronome.csv

Forrest Mims Metronome

(Click schematic to enlarge)

Schematic Ref Description MFN MFP Part Link
R1 10K Base Resistance SEI Stackpole CF14JT10K0 http://parts.io/detail/3786135/CF14JT10K0
R2 50K Variable Base Resistance Bourns PTD902-2015K-A503 http://parts.io/detail/1811385/PTD902-2015K-A503
Q1 Transistor Oscillator NPN ON Semi P2N2222ARL1 http://parts.io/detail/4035288/P2N2222ARL1
Q2 Transistor Oscillator PNP Fairchild Semi PN2907BU http://parts.io/detail/1027948/PN2907BU
C1 DC Blocking Cap Vishay MAL204121229E3 http://parts.io/detail/19913297/MAL204121229E3
SP1 8? Speaker Output PUI Audio AST-03208MR-R http://www.digikey.com/product-detail/en/AST-03208MR-R/668-1139-ND/1464878

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