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511: Difference between revisions
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The main difference between the 511 and the 511A is the power supply. | The main difference between the 511 and the 511A is the power supply. | ||
In the 511 there are two power transformers, | In the 511 there are two power transformers, | ||
T1 and T2, both operating on 60 Hz mains power with their primaries in | T1 and T2, both operating on 60 Hz mains power with their primaries in parallel. | ||
T1 produces the CRT anode and cathode voltages, as well as various other | T1 produces the CRT anode and cathode voltages, as well as various other | ||
regulated and unregulated voltages. The CRT cathode and anode voltages in | regulated and unregulated voltages. The CRT cathode and anode voltages in | ||
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The delay could be switched in and out of the signal path, presumably to avoid | The delay could be switched in and out of the signal path, presumably to avoid | ||
the slight signal degradation the delay causes. | the slight signal degradation the delay causes. | ||
==History== | ==History== | ||
Tektronix engineer [[Frank Hood]] recollects: | Tektronix engineer [[Frank Hood]] recollects: | ||