015-0058-01

The Tektronix 015-0058-00 is the early 115 V_AC power supply version for the Tektronix 134. It has a standard NEMA 5-15 AC power plug built onto the body of the power supply.

The Tektronix 015-0059-00 is the early 230 V_AC power supply version for the Tektronix 134. It is identical to the 115 V_AC version except for the cover, which has a different part number and voltage rating printed on it, and the addition of dropping resistors (2 kΩ & 2.7 kΩ, both 3 W) in series with the transformer primary. Oddly, this 230 V_AC version appears to use a NEMA 5-15 115 V_AC cord and plug. The addition of the two series resistors allows it to work from 207 to 253 V_AC.

These early versions resemble the supplies that came with the Tektronix 131, and the output connectors are the same, but they must not be interchanged.

The Tektronix 015-0058-01 is the later 115 V_AC version of the power supply for the Tektronix 134 Current Probe Amplifier. It differs from the 015-0058-00 in that it has a ~1 m AC power cord, an extended section of the housing to accommodate the power cord and strain relief, and a different part number on the plastic housing.

The Tektronix 015-0059-01 is the later 230 V_AC version of this power supply. It differs from the 015-0059-00 in that it has a ~1 m AC power cord, an extended section of the housing to accommodate the power cord and strain relief, and a different part number on the plastic housing.

Each version provides an unfiltered full wave rectified 20-25 V_DC output to the 134 amplifier. That output is filtered and regulated down to ~14 V in the amplifier. They work from 50 to 400 Hz and 103.5 to 126.5 V_AC, or 201 to 253 V_AC for the 230 V versions. The output is via a proprietary coaxial Tektronix connector. The negative side is held near ground by a pair of anti-parallel diodes and the center conductor is positive.

Pictures

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  Early Left Side w/integral plug, assembled from parts, note wrong part number

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  Early Right Side w/integral plug

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  Late Power Supply w/cord and plug. Note broken output connector

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  Intact Output Connector