SEMICONDUCTORS
• 1x 2n3906
• 2x 2n2222a
• 2x germanium diodes, matched
• 1x transformer; model numbers
42TU011, 42TM022, or the one
on Smallbear labeled “Tycho”
(I used this one)
POTENTIOMETERS
• 1x 1kB
• 1x 500kB
• 2x potentiometer dust seals
MISCELLANEOUS
• 2x pieces of Veroboard
(stripboard), cut and scored to
spec in the diagram
• 1x SPST or SPDT toggle switch
ToneReport.com
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