OT Relays with diodes built in (inductive kick)

[Stewart Baker]

A "catcha" to be aware of if you are building kit that uses DIL plugin relays.
Some of these relays have diodes already fitted internally across the coil.
I have built a couple of projects on PCB's, and wondered why the relay would not operate.
Reversing the coil connections got things working.

73
Stewart G3RXQ
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