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The John Lawrence Collection
The 1628 is a UHF transmitting triode with a 75 Watt power rating.
The anode and grid are brought out to side contacts, in later designs the lowering of inductance by the use of multiple contacts expands into contact rings.
The wide glass tube envelope is 28 mm in diameter and, excluding the flying leads, is 95 mm tall.

This exhibit was last updated on 07 August 2006