517: Difference between revisions

517 (view source)

977 bytes added , 18 June 2011

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 * Pin 7: -250V, regulated
 * Pin 8: +180V, unregulated
+The 517 makes extensive use of the [[distributed amplifier]] concept.  The vertical signal path is
+as follows:
+* Gain Stage 1: single-ended, six sections, distributed, [[6AK5]] tubes
+* Gain Stage 2: single-ended, six sections, distributed, [[6AK5]] tubes
+* Gain Stage 3: single-ended, seven sections, distributed, [[6AK5]] tubes
+* Signal Delay: 51 feet of RG63U 125-ohm coaxial cable
+* Phase Splitter: single-ended in, differential out, three sections, distributed, [[6CB6]] tubes
+* Gain Stage 4: differential, six sections, distributed, [[6CB6]] tubes
+* Gain Stage 5: differential, twelve sections, distributed, [[6CB6]] tubes
+The 517 uses 24kV of acceleration voltage on the CRT.  This is generated by the Type 420 High Voltage
+Power Supply subsystem in the 517.  It uses a 1.8kHz oscillator to produce the high voltage, unlike
+other Tek scopes which use HV oscillators in the ultrasonic range.
 * [http://w140.com/MILSPEC_High_Speed_Scope.pdf Final Report on Tektronix MILSPEC High Speed Scope]
 * [http://w140.com/tek_517_calibration.pdf Tektronix 517 Calibration Guide]
-* [http://w140.com/tek_517_517a.pdf Manual for 517 and 517A (PDF)]
+* [http://w140.com/tek_517_early.pdf Early 517 Manual (PDF)]
+* [http://w140.com/tek_517_517a.pdf Later Manual Covering the 517 and 517A (PDF)]
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