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Power Supply Details
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=== Power Supplies === | === Power Supplies === | ||
The 575 contains three separate power supplies: | The 575 contains three separate power supplies: | ||
* Main Power Supply using T601 (120-095 and, later, [[120-0095-01]]), | * Main Power Supply using T601 (120-095 and, later, [[120-0095-01]]), supplying power to the amplifiers and step generator in the 575. | ||
supplying power to the amplifiers and step generator in the 575 | |||
This power supply follows the standard 500 series power supply design. In addition to heater power, it provides -150V, +100V, +300V regulated and +400V unregulated output. It uses a mix of tubes and silicon or [[selenium rectifiers]] (earlier S/N) for rectification. | |||
-150V and +400V unregulated/+300V regulated rail uses [[6BW4]] full wave rectifier tube, +100V uses silicon diodes/[[selenium rectifiers]]. | |||
-150V is the main reference supply, it uses [[5651]] as voltage reference, [[6AN8]] as the comparator/error amplifier, [[12B4]] as series pass tube. | |||
+100V uses [[6080]] as series pass tube, -150V for reference and [[6AU6]] tube as error amplifier. | |||
+300V Rail is similar to +100V, except that it uses [[12B4]] as the series pass. | |||
+400V Unregulated is provided for CRT HV Oscillator. | |||
* High-voltage, using T801, supplying the CRT voltages, +2300 V for the CRT anode and -1700 V for the CRT cathode | * High-voltage, using T801, supplying the CRT voltages, +2300 V for the CRT anode and -1700 V for the CRT cathode | ||
This HV power supply [[6AQ5]] as the HV oscillator tube, and [[12AU7]] as feedback/error amplifier. | |||
* Collector sweep, using T701 (a variac) and T702, supplying the collector current to the device under test | * Collector sweep, using T701 (a variac) and T702, supplying the collector current to the device under test | ||