AKG D 190C
Dynamic pressure gradient microphone.

Year introduced	1971
Year discontinued	unknown
Polar pattern	Cardioid
Frequency range	30-16,000Hz
Sensitivity	1.6 mV/Pa
Impedance	280 Ohms
Temperature range	-10 C to 80 C
Relative humidity	90%
Weight	0.14 kg (6.3 oz)
Dimensions	40 x 153 mm (1.6 x 6 inches)
Material	Metal case
Features	-
Connector(s) used	DIN 41524 (Klein Tuchel)

The D 190CR is the same as this with the addition of a bass filter. The D 190CS is the same with the addition of an on/off switch.