Labels Milestones
BackPush, https://www.neutrik.com/en/product/nc3fav2-da A Series, 4 pole chassis connector, black D-size flange, countersunk thru holes, horizontal PCB, replaces NL2MD-H, https://www.neutrik.com/en/product/nl2mdxx-h-3 speakON Chassis Connectors, 4 pole chassis connector, grey D-size flange, countersunk thru holes, vertical PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch ISO enter 4-bit rotary coded switch, through-hole, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf SPST Off-On Pushbutton, 1A, 30V, CW Industries P/N GPTS203211B, http://switches-connectors-custom.cwind.com/Asset/GPTS203211BR2.pdf SPST button switch | | | | | | R16, R18, R26 | 3 | 2N3904 | Small Signal NPN Transistor, TO-92 | | | R1, R2, R23, R24 R3, R21, R27, R28 R4, R6, R7, R30, R31 | 1 | Conn_01x04 | Pin header 2.54 mm spacing"/>