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Avionics bay for the sustainer of a two-stage project I'm working on.
Eggtimer Proton for primary deployments, sep charge, and air start. Eggtimer Quantum for redundant deployment charges.
Eggtimer Telemetry Module connected to the Proton.
Pull-pin switch completely disconnects power from the Proton channels.
Labrat bulkhead terminals for deployment charge connections. Sep charge and air start connections use ring terminals and 4-40 screws (connection to the e-matches will be a modified JSTs - the ring terminals are just to ensure that the bulkhead wire leads don't get pulled off during separation).