502: Difference between revisions

Revision as of 03:12, 29 August 2014

{{{manufacturer}}}
1 MHz dual beam differential scope Tek 502 front Produced from 1958 to 1973 Manuals Tektronix 502 Manual (PDF) Tektronix 502A Manual (PDF) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 502 is a dual-beam oscilloscope introduced in 1958, followed by the 502A in the early 1960s.

Both beams have differential inputs.

Specifications

When set for maximum sensitivity, the 502A is 100 μV/cm and has a vertical bandwidth of 50 kHz. At lower sensitivity settings the bandwidth increases - at 200 mV/cm the bandwidth is 1 MHz. At 100 mV/cm and 1 kHz, the common-mode rejection ratio of the 502A is 40,000:1.please add

Models

There is a 502, a 502A, and a rack-mount model, the RM502A. The price of the 502 in July 1959 was $825.

Internals

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.

Mod 104 on a 502 provides single sweep lockout.

Later 502A have solid state (include nuvistor) input stage. 6DJ8 as deflection-amplifier and transistor as amplifier and cathode follower ( only by latest version).

The 502 uses a single supply for the upper beam and lower beam CRT cathodes. The 502A has separate supplies for the two CRT cathodes. This improvement in the 502A allows slight differences in horizontal CRT sensitivity between the two beams to be canceled out in step 8 of the calibration procedure.

Pictures

502 front view
Image magnified out from a flyer
502A block diagram
502A vertical amplifier
502 CRT circuit
502A CRT circuit
RM 502A
RM 502A display
RM 502A bottom
RM 502A transformer wiring
RM 502A top
RM 502A vibration-isolated vertical amp
502 left
502 right
502 bottom
Solid State Inputstage with two 6DJ*
502A

@@ Line 1: / Line 1: @@
-[[Image:Tek_502.jpg|200px|thumb|right|Image magnified out from a flyer]]
+{{Oscilloscope Sidebar |
+title=Tektronix 502 |
+summary=1 MHz dual beam differential scope |
+image=Tek_502_front.jpg |
+caption=Tek 502 front |
+introduced=1958 |
+discontinued=1973 |
+manuals=
+* [http://w140.com/tek_502.pdf Tektronix 502 Manual (PDF)]
+* [http://bama.edebris.com/download/tek/502a/tek%20502a.v6.pdf Tektronix 502A Manual (PDF)]
+}}
+The '''Tektronix 502''' is a dual-beam oscilloscope [[introduced in 1958]], followed by the 502A in the early 1960s.
-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.
+==Specifications==
-At lower sensitivity settings the bandwidth increases.
+When set for maximum sensitivity, the 502A is 100 μV/cm and has a vertical bandwidth of 50 kHz.
-At 200 mV/cm the bandwidth is 1MHz.
+At lower sensitivity settings the bandwidth increases - at 200 mV/cm the bandwidth is 1 MHz.
-At 100 mV/cm and 1 kHz, the common-mode rejection ratio of the 502A is 40,000:1.
+At 100 mV/cm and 1 kHz, the common-mode rejection ratio of the 502A is 40,000:1.
+[[Category:Specifications needed]]''please add''
+==Models==
+There is a 502, a 502A, and a rack-mount model, the RM502A.
+The price of the 502 in July 1959 was $825.
+==Internals==
 There is a transistor-regulated 6.2V DC heater supply for the tubes in the
 first stage differential amplifier.
@@ Line 16: / Line 33: @@
 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.
@@ Line 29: / Line 43: @@
 to be canceled out in step 8 of the calibration procedure.
-* [http://w140.com/tek_502.pdf Tektronix 502 Manual (PDF)]
+==Pictures==
-* [http://bama.edebris.com/download/tek/502a/tek%20502a.v6.pdf Tektronix 502A Manual (PDF)]
 <gallery>
-Image:Tek 502 front fl2.jpg
+File:Tek 502 front fl2.jpg
-Image:Tek 502 front fl.jpg
+File:Tek 502 front fl.jpg
-Image:Tek_502_front.jpg|502 front view
+File:Tek_502_front.jpg|502 front view
-Image:Tek 502a block.png|502A block diagram
+File:Tek_502.jpg | Image magnified out from a flyer
-Image:Tek-502a vert.png|502A vertical amplifier
+File:Tek 502a block.png|502A block diagram
+File:Tek-502a vert.png|502A vertical amplifier
 File:Tek 502 crt circuit.png|502 CRT circuit
 File:Tek 502a hvps.png|502A CRT circuit
-Image:Tek rm 502a front.jpg|RM 502A
+File:Tek rm 502a front.jpg|RM 502A
-Image:Rm 502a display.jpg|RM 502A display
+File:Rm 502a display.jpg|RM 502A display
-Image:Rm502a bottom2.jpg|RM 502A bottom
+File:Rm502a bottom2.jpg|RM 502A bottom
-Image:Rm502a transformer wiring.jpg|RM 502A transformer wiring
+File:Rm502a transformer wiring.jpg|RM 502A transformer wiring
-Image:Rm502a top.jpg|RM 502A top
+File:Rm502a top.jpg|RM 502A top
-Image:Rm502a floating pre.jpg|RM 502A vibration-isolated vertical amp
+File:Rm502a floating pre.jpg|RM 502A vibration-isolated vertical amp
-Image:Tek 502 left.jpg|502 left
+File:Tek 502 left.jpg|502 left
-Image:Tek 502 right.jpg|502 right
+File:Tek 502 right.jpg|502 right
-Image:Tek 502 bottom.jpg|502 bottom
+File:Tek 502 bottom.jpg|502 bottom
-Image:502A_Solidstate.JPG| Solid State Inputstage with two 6DJ*
+File:502A_Solidstate.JPG| Solid State Inputstage with two 6DJ*
 File:Wellenkino_502a_011.jpg|502A
 </gallery>
@@ Line 55: / Line 68: @@
 [[Category:Dual beam scopes]]
 [[Category:Tube scopes]]
-[[Category:Specifications needed]]