TD3A

The TD3A is a 4.7 mA, 18 pF germanium tunnel diode. Tek used part number 152-0125-00 to refer to them.

According to Stan Griffiths, they were used in 1L40, 1S1, 1S2, 11B1, 11B2, 11B2A, 147A, 1470, 148, 21A, 22A, 3B4, 3B5, 408, 432, 434, 453, 453A, 454, 466, 491, 5T3, 544, 546, 547, 556, 7B70, 7B71, and 7D11.

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  I-V curve of 152-0125-00 TD3A. 1 mA/Div vertical, 50 mV/Div horizontal