015-027: Difference between revisions
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'''Power Supplies for the Tektronix Type 131 Model 4 Current Probe Amplifier''' | |||
The '''Tektronix 015-027''' is the 115 V<sub>AC</sub> power supply for the Tektronix [[131]] Model 4. It has a standard NEMA 5-15 AC power plug built onto the body of the power supply. It has a full wave rectified output which is filtered and Zener regulated to ~20 V<sub>DC</sub>. | The '''Tektronix 015-027''' is the 115 V<sub>AC</sub> power supply for the Tektronix [[131]] Model 4. It has a standard NEMA 5-15 AC power plug built onto the body of the power supply. It has a full wave rectified output which is filtered and Zener regulated to ~20 V<sub>DC</sub>. | ||
The '''Tektronix 015-0??''' (please add) is the 230 V<sub>AC</sub> power supply for the Tektronix [[131]] Model 4. It is identical to the 115 V<sub>AC</sub> version except for the cover, which has a different part number and voltage rating printed on it, and a metal extension of the body to accommodate the addition of two dropping resistors (18 kΩ, 1 W) in series with the transformer primary. Oddly, this 230 V<sub>AC</sub> version appears to use a NEMA 5-15 115 V<sub>AC</sub> cord and plug. The addition of the two series resistors allows it to work from 210 to 250 V<sub>AC</sub>. | The '''Tektronix 015-0??''' ''(please add)'' is the 230 V<sub>AC</sub> power supply for the Tektronix [[131]] Model 4. It is identical to the 115 V<sub>AC</sub> version except for the cover, which has a different part number and voltage rating printed on it, and a metal extension of the body to accommodate the addition of two dropping resistors (18 kΩ, 1 W) in series with the transformer primary. Oddly, this 230 V<sub>AC</sub> version appears to use a NEMA 5-15 115 V<sub>AC</sub> cord and plug. The addition of the two series resistors allows it to work from 210 to 250 V<sub>AC</sub>. | ||
Also available was a '''Tektronix ???-???''' (please add) battery adaptor, which allowed the Type [[131]] Model 4 to be powered from any 22.5 V battery capable of delivering 10 mA. This power supply alternative is shown at the bottom center of the photo preceding page 1-1 of the [[131]] [[Media:070-237.pdf | manual]]. Note that, due to the complete absence of ground connections, this accessory could also be used for the Type [[134] as long as the battery is capable of delivering ~75 mA. | Also available was a '''Tektronix ???-???''' ''(please add)'' battery adaptor, which allowed the Type [[131]] Model 4 to be powered from any 22.5 V battery capable of delivering 10 mA. This power supply alternative is shown at the bottom center of the photo preceding page 1-1 of the [[131]] [[Media:070-237.pdf | manual]]. Note that, due to the complete absence of ground connections, this accessory could also be used for the Type [[134] as long as the battery is capable of delivering ~75 mA. | ||
Each version has a Tektronix proprietary coaxial output connector. The center conductor is grounded and the outer conductor is about 20 volts negative. | Each version has a Tektronix proprietary coaxial output connector. The center conductor is grounded and the outer conductor is about 20 volts negative. | ||
Note the added label in the second photo, intended to prevent accidental use with a Type [[134]]. The 015-027 power supplies did not originally come with any identifying label. Using the wrong supply with the 131 or 134 will short out the power supply, possibly leading to damage of the power supply. Damage to the amplifier is unlikely. | Note the added label in the second photo, intended to prevent accidental use with a Type [[134]]. The 015-027 power supplies did not originally come with any identifying label. Using the wrong supply with the [[131]] or [[134]] will short out the power supply, possibly leading to damage of the power supply. Damage to the amplifier is unlikely. | ||
==Pictures== | ==Pictures== | ||
Revision as of 11:10, 3 April 2023
Power Supplies for the Tektronix Type 131 Model 4 Current Probe Amplifier
The Tektronix 015-027 is the 115 VAC power supply for the Tektronix 131 Model 4. It has a standard NEMA 5-15 AC power plug built onto the body of the power supply. It has a full wave rectified output which is filtered and Zener regulated to ~20 VDC.
The Tektronix 015-0?? (please add) is the 230 VAC power supply for the Tektronix 131 Model 4. It is identical to the 115 VAC version except for the cover, which has a different part number and voltage rating printed on it, and a metal extension of the body to accommodate the addition of two dropping resistors (18 kΩ, 1 W) in series with the transformer primary. Oddly, this 230 VAC version appears to use a NEMA 5-15 115 VAC cord and plug. The addition of the two series resistors allows it to work from 210 to 250 VAC.
Also available was a Tektronix ???-??? (please add) battery adaptor, which allowed the Type 131 Model 4 to be powered from any 22.5 V battery capable of delivering 10 mA. This power supply alternative is shown at the bottom center of the photo preceding page 1-1 of the 131 manual. Note that, due to the complete absence of ground connections, this accessory could also be used for the Type [[134] as long as the battery is capable of delivering ~75 mA.
Each version has a Tektronix proprietary coaxial output connector. The center conductor is grounded and the outer conductor is about 20 volts negative.
Note the added label in the second photo, intended to prevent accidental use with a Type 134. The 015-027 power supplies did not originally come with any identifying label. Using the wrong supply with the 131 or 134 will short out the power supply, possibly leading to damage of the power supply. Damage to the amplifier is unlikely.
Pictures
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Front, with Tek ID
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Back, with added label
