502: Difference between revisions
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[[Image:Tek_502.jpg|200px|thumb|right|Image magnified out from a flyer]] | [[Image:Tek_502.jpg|200px|thumb|right|Image magnified out from a flyer]] | ||
The 502 is a dual-beam oscilloscope [[introduced in 1958]] | The 502 is a dual-beam oscilloscope [[introduced in 1958]], | ||
followed by the 502A in the early 1960's. | |||
Both beams have differential inputs. | |||
At | When set for maximum sensitivity, the 502A is 100 microvolts/cm | ||
and has a vertical bandwidth of 50 kHz. | |||
There is a transistor-regulated heater supply | At lower sensitivity settings the bandwidth increases. | ||
At 200 mV/cm the bandwidth is 1MHz. | |||
At 100 mV/cm and 1 kHz, the common-mode rejection ratio of the 502A is 40,000:1. | |||
There is a transistor-regulated 6.2V DC heater supply for the tubes in the | |||
first stage differential amplifier. | |||
This heater supply uses the -150 V supply as its reference. | |||
The -150 V supply uses a [[5651]] voltage reference tube as its reference. | |||
There is no post-deflection acceleration. | There is no post-deflection acceleration. | ||
The CRT cathode voltage is -2900V. | The CRT cathode voltage is -2900V. | ||
There is a 502, a 502A, and a rack-mount model, the RM502A. | |||
The price of the 502 in July 1959 was $825. | |||
Mod 104 on a 502 provides single sweep lockout. | Mod 104 on a 502 provides single sweep lockout. | ||
Revision as of 13:05, 26 December 2011
The 502 is a dual-beam oscilloscope introduced in 1958, followed by the 502A in the early 1960's. Both beams have differential inputs. When set for maximum sensitivity, the 502A is 100 microvolts/cm and has a vertical bandwidth of 50 kHz. At lower sensitivity settings the bandwidth increases. At 200 mV/cm the bandwidth is 1MHz. At 100 mV/cm and 1 kHz, the common-mode rejection ratio of the 502A is 40,000:1.
There is a transistor-regulated 6.2V DC heater supply for the tubes in the first stage differential amplifier. This heater supply uses the -150 V supply as its reference. The -150 V supply uses a 5651 voltage reference tube as its reference. There is no post-deflection acceleration. The CRT cathode voltage is -2900V.
There is a 502, a 502A, and a rack-mount model, the RM502A. The price of the 502 in July 1959 was $825.
Mod 104 on a 502 provides single sweep lockout.
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502 front view
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502A block diagram
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502A vertical amplifier
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RM 502A
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RM 502A display
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RM 502A bottom
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RM 502A transformer wiring
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RM 502A top
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RM 502A vibration-isolated vertical amp
