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Switch and Lamptester for 'the bench'

Designed for Williams System11 but, with some rewiring, can be used for SYS3..7 also.

Add jumpers to the switchtesters on switches you want to have permanently closed.

Add 8 resistors of 2,2K .. 4,7K depending on how 'intense' you want the LEDs.

Both Switch and Lamptester when they come preassembled from JLCPCB

both testers 'in action' on WillFA11 (emulated game: Highspeed)