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by ilkka313
Thu Aug 31, 2023 8:12 pm
Forum: Series 2
Topic: 4TR voltage conrol unit with 4 pins
Replies: 2
Views: 1200
Finland

4TR voltage conrol unit with 4 pins

Aloha!

Most 4TR controllers are with 3 pins, others with 4. For what is the fourth for? I enclose pics of two units, the most left connector is marked with B+, the other has A. Are they the same still? Both are NOS-parts.

Oops, I was able to add any pics as a new member or I don't know how to do it.