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]],
with a high sensitivity of 100 or 200 microvolts/cm,
followed by the 502A in the early 1960's.
depending on the mode whether differential inputs are used.
Both beams have differential inputs. 
At 200uV/cm the bandwidth is only 100kHz but at 200mV/cm it rises to 1MHz.
When set for maximum sensitivity, the 502A is 100 microvolts/cm
There is a 502, a 502A, and an RM502A.   
and has a vertical bandwidth of 50 kHz.
There is a transistor-regulated heater supply build in.
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.


Price at July 1959 was $825.
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

Image magnified out from a flyer

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.