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647A: Difference between revisions
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{{Spec | Weight | 18.4 kg (40.5 lbs) }} | {{Spec | Weight | 18.4 kg (40.5 lbs) }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
{{Documents|Link=647A}} | |||
{{PatentLinks|647A}} | |||
==Internals== | ==Internals== | ||
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The power supply of the 647A is all solid state, with a zener voltage reference and NPN pass transistors. | The power supply of the 647A is all solid state, with a zener voltage reference and NPN pass transistors. | ||
The horizontal amplifier in the 647A uses selected [[2N3119]] NPN bipolar transistors for the output. | The horizontal amplifier in the 647A uses selected [[2N3119]] NPN bipolar transistors for the output. | ||
These are specified as having a transit frequency of 250 MHz and a | These are specified as having a transit frequency of 250 MHz and a V<sub>CEO</sub> max of 80 V. | ||
==Related== | ==Related== | ||