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Tektronix SW503
sweep generator
Tektronix SW503

Produced from 1976 to 1978

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix SW503 is a sweep generator plug-in for the TM500 system.

Key Specifications

Frequency range 1 to 400 MHz
Sweep width 200 kHz to 400 MHz
Sweep time 10 ms to 100 s, decade steps plus vernier
Output −40 to +10 dBm into 50 Ω
Horizontal output 0.5 Vp-p
Fixed markers frequency comb with 1, 10, or 50 MHz base frequency
Variable marker 1 to 400 MHz, digital readout on a DC502 Opt.07 counter
  • Amplitude control input (0 – 10 V)
  • Frequency control input (0 – 10 V)
  • Sweep trigger input (10 V pulse ≥1 μs)
  • Opt. 01 – 75 Ω output impedance

Rear Interface

Connector Pin Signal
28B Y axis output (common on 28A)
27B X axis output (common on 27A)
24B Trigger input (common on 25B)
21B Amplitude control input (0 – 10 V), common on 22B
20B Frequency control input (0 – 10 V), common on 22B
18B Start Count (0/+5 V; positive pulse to trigger the counter)
18A Gate (0/+5 V; negative gate from counter)
17B Counter Identify (grounded when counter is installed)
16B Phase Lock Logic (+5 V: 100 kHz resolution; 0 V: 10 Hz resolution)
15B CW Mode Logic (+5 V: dot marker function; 0 V: normal counter function)
14B Sweep Generator Identify (grounded when SW503 is installed)