Eeyore wrote:

John Larkin wrote:

"Tom Del Rosso" wrote:
"John Larkin" wrote

IC, CON, HDR, TR, VR, CHO, RN, RV, RLY, SW, LED and such are all
amateur inventions.

CR is still common. Is that supposed to be "controlled rectifier" (like in
SCR)?

It was "crystal rectifier", and D was "dynamotor". You don't see many
surface-mount dynamotors [1] any more, so lots of people have swiped D
for diodes.

These designators are the classic military ones.

In the USA !


Of course in the USA. America has built most of the military
electronics that have been used, since the start of WW-II. We can't
leave a task like that to amateurs, and idiots.


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