Nombex Type 62 Cap/Res Bridge.

[Keithstv]

Attached is the additional control on my Nombrex 32 which controls the sensitivity. The pot is 5k linear.

I've measured the voltages on my bridge. With a supply voltage of 8.6v and a 10k resistor across the measurement terminals and set to the 10k range. All voltages measured relative to the ground connection

TR2 base - 0.15V

TR2 Collector 0.11V at null & 3.5V to 4.5V at extreme positions of the bridge pot.

TR3 Collector 8.3V at null & 4.4V 50 5.9V at extreme positions.

If the sensitivity control is set to maximum I cannot get a null.

HTH

Keith