Vintage condition with signs of use. This device is was not tested.
All photos are real.
The main technical characteristics of the rectifying diode D1011A:
Maximum constant reverse voltage: 500 V; Maximum forward current: 300 mA; Operating frequency of the diode: 1 kHz; Constant forward voltage: not more than 1.5 V at Inp 300 mA; Constant reverse current: not more than 100 μA at Uob 500 V
Length: 9 cm (3,54 inches). Width: 2,4 cm (0,95 inches). Height: 1,5 cm (0,59 inches). Weight 43 gr.