Keithley 177: Difference between revisions

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* [https://www.youtube.com/watch?app=desktop&v=MyJ6Qbb58Fw Refurbishing a Keithley 177 Microvolt DMM] – Craig Hollinger @ YouTube
* [https://www.youtube.com/watch?app=desktop&v=MyJ6Qbb58Fw Refurbishing a Keithley 177 Microvolt DMM] – Craig Hollinger @ YouTube
* [https://samueldperry.com/2019/03/03/keithley-177-power-supply-replacement/ Power Supply Replacement for Keithley 177] (to replace failed transformer) / [https://www.tindie.com/products/sdp8483/power-supply-replacement-for-keithley-177/ PCB project @ Tindie]
* [https://samueldperry.com/2019/03/03/keithley-177-power-supply-replacement/ Power Supply Replacement for Keithley 177] (to replace failed transformer) / [https://www.tindie.com/products/sdp8483/power-supply-replacement-for-keithley-177/ PCB project @ Tindie]
* See also [[Keithley 197]]


==Pictures==
==Pictures==

Revision as of 13:48, 26 May 2024

Keithley 177
4½-digit digital multimeter
Keithley 177

Produced from (?) to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

Key Specifications

Voltage 20 mV (AC: 200 mV) to 1000 V in decade ranges
Current 20 μA (AC: 200 μA) to 2 A in decade ranges
Resistance 20 Ω to 20 MΩ in decade ranges
Power 105–125 or 210-250 V, 50–60 Hz, 8 W
Features
  • AC True RMS
Options
  • Option 1788 – Battery pack (6 h runtime)
  • Option 1793 – BCD output (isolated)
  • Option 1793 – GPIB (isolated)

Links

Pictures

please add

Components

Some Parts Used in the Keithley 177

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