Thermistor (R53) - ITT

R53 thermistor in a glass vacuum tube by ITT

These now impossible to obtain items were manufactured during the mid '70's and were used for temperature compensating.

a fantastic article by Rod Elliot can be read at : http://sound.westhost.com/articles/sinewave.htm

these are probably the last two unused items available.... anywhere !

Status: NOS (New Old Stock)

Individually tested components: YES

RoHS: probaby not !