Labels Milestones
BackKnobs | | | L1 | 1 nF | Unpolarized capacitor | | | R4, R6, R7, R30, R31 Switch, dual pole double throw Precision Timers, 555 compatible, PDIP-8 | | | | | | J4 | 1 uF | Unpolarized capacitor | | J9 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-14/SOIC-14"/>