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Old 11th Feb 2020, 9:44 am   #4
McMurdo
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Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 3,931
Default Re: 2P1M 7Y SCR equivalent

open circuit both ways between anode and cathode, low resistance (few tens of ohms) between cathode and gate.
I've just checked some thyristors in the drawer and they measure the same whether AVO or digital (not on diode check).

Sometimes the c-g reading will read slightly differently depending on polarity.

If in doubt, wire it up with a small bulb and a gate resistor.
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