Keithley 179

The Keithley 179 is a 4½-digit digital multimeter. The 179-20A model adds a 20 A current range.

Keithley 179
4½-digit TRMS digital multimeter
Keithley 179

Produced from 1978 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)

It was also available re-branded by Racal-Dana as the model 4002.

Key Specifications

Voltage 200 mV to 1200 V (AC: 1000 V) in decade ranges
Current 200 μA to 2 A (179-20A: 20 A) in decade ranges
Resistance 2 kΩ to 20 MΩ in decade ranges
Power 105–125 or 210-250 V, 50–60 Hz, 7 W
Features
  • AC True RMS

Links

Internals

The Keithley 179 uses the Intersil ICL8052/ICL7104 4½-digit DVM chip set.

Pictures

please add

Components

Some Parts Used in the Keithley 179

Part Part Number(s) Class Description Used in
AD536 156-1259-00 Monolithic integrated circuit RMS/DC converter DM501A DM502A DM5010 Keithley 177 Keithley 179 Keithley 195A
Intersil ICL8052 Monolithic integrated circuit 4½ digit A/D converter Keithley 177 Keithley 179 Keithley 480