134

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Tektronix 134
current probe amplifier
Tek 134 front

Produced from 1966 to (?)

Manuals
Manuals – Specifications – Links – Pictures


The Tektronix 134 current probe amplifier interfaces a P6019, P6020, P6021 or P6022 current probe to the voltage input of an oscilloscope. It also had a Volts Only setting of the input attenuator switch that provided a voltage gain of 125 or 50, depending on the position of the probe selector switch. It was designed by Hans Springer. Early versions, up thru S/N 6539, had the switch positions labeled only for the P6019 & P6020 probes but these early versions are still compatible with the later P6021 & P6022 probes introduced in 1969.

Each 134 came with its own separate, dedicated power supply using the same Tektronix proprietary coaxial connector as that used in the Type 131s and its power supplies . For more information on the power supplies for the Type 134 see the separate Type 134 Power Supplies page.

Key Specifications

Current Ranges 1 mA/Div to 1 A/Div, 1−2−5 (scope at 50 mV/Div)
Voltage Gain 125 in P6019/P6021 switch position
Voltage Gain 50 in P6020/P6022 switch position
Bandwidth 10 Hz to 30 MHz in P6019/P6021 x120 mode
Bandwidth 8 Hz to 54 MHz in P6020/P6022 x50 mode

Links

Prices

Year 1970 1974 1984 1986
Catalog price $209 $265 $625 $625
In 2022 Dollars $1,600 $1,600 $1,800 $1,700

Pictures

Measurements

Comparison of P6022 with passive termination @ 10 mA/Div (top trace) vs. P6021+134 (bottom trace). Signal is a sawtooth from a HP3325A @ 5 Vp-p into 50 Ω = 100 mAp-p.