Schlumberger Solartron Digital Voltmeter 7075

The Schlumberger Solartron 7075 is a highly advanced digital voltmeter featuring a unique decastat display, providing an impressive seven 9’s scale plus an over-range indication. Renowned for its exceptional precision, the instrument boasts one part-per-million (ppm) linearity and delivers up to 200 readings per second with rapid auto-ranging capability.

Key Features

• DC Voltage Measurement: Measures from as low as 1 µV up to 1,000 V.
• True RMS AC Voltage: Accurately measures from 1 µV to 750 V, with a maximum input limit of 1.1 kV.
• Resistance Measurement: Ranges from 1 mΩ to 14 MΩ.
• Input Impedance: 1 MΩ, ensuring minimal loading on measured circuits.
• User Simplicity: The only operator input required is the selection of the measurement type. The instrument automatically detects the input’s magnitude and selects the optimal range instantly.
• Power Supply: Operates on AC voltages from 100 V to 264 V (no manual mains tap required), at 50 or 60 Hz. An internal switch enables operation at 400 Hz, and the instrument can function with supply frequencies up to 2,400 Hz.

This combination of speed, accuracy, and ease of use makes the Solartron 7075 an outstanding choice for high-precision voltage and resistance measurements in demanding laboratory or industrial environments.

Semiconductor Count

• 61 Transistors
• 118 ICs
• 32 Zener Diodes
• 52 Diodes

The provided semiconductor list, while extensive, is incomplete and includes many acronyms that are unclear in the diagrams. Numerous integrated circuits (ICs), three transistors, and several diodes are not included in the list because they are not currently present in the RMORG database. Additionally, almost no Zener diodes are named.

Here you find 33 models, 30 with images and 11 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Solartron Laboratory Instruments Ltd.; Surrey