Equipment information:

Keithley 603 Analog multimeter
Model: 603
Date: 1965
Category: Measurement instruments
Group: Analog multimeter
Description: Electrometer Amplifier
                                    The model 603 Electrometer Amplifier is a high gain amplifier
and voltmeter for the frequency range of dc to 50 kilocycles.
Its outstanding characteristics are an input impedance of
greater than lO¹⁴ ohms shunted by 10 micromicrofarads, a grid
current of less than 5 x 10⁻¹⁴ amperes, a maximum full scale
sensitivity of 2.5 millivolts, differential input, low drift
and a remote probe containing the first stage electrometer
tubes. The remote probe allows the input grids to be located
as far as 24 feet from the main amplifier. By employing this
feature the input capacitance may be kept to a minimum so that
it is possible to achieve fast voltage and current measurements
in high impedance circuits., Current measurements, either differential
or single-ended are made by inserting high megohm
resistors in the place provided in the remote probe.
The output capability of the Model 603 is 10 volts single
ended or 20 volts pushpull at a maximum current of 10 milliamperes.
The output is therefore suitable for driving milliampere

These manuals are available for the above equipment:

Keithley -- 603 -- Service and User Manual
File name: Keithley-3958-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 29
Size: 1.54 Mbytes (1615134 Bytes)
Language: english
Date: 1965
Quality: Scanned document, reading partly badly, partly not readable.
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MD5: 4a6efba13f5ecd9889be27e1671f60bd
ed2kID: 3ee58cdbfb9d8bdcd9452cc16542e46d
Downloads: 105 since 13 January 2013
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