532
The Tektronix Type 532 is a 5MHz oscilloscope introduced in 1955. From the manual, "It is specially engineered to get extra dependability through circuit simplicity and conservative tube loading." It accepts letter-series and 1-series plug-ins. P2 phosphor was standard for the 532. P1, P7, and P11 were optional at no charge. There is also a rack-mount version, the 532R. The 532 uses 475 watts and weighs 52 pounds.
Some differences between the 532 and 531:
- 532 has 5MHz vertical bandwidth with a Type K plug-in; 531 is 11MHz with a Type K.
- 532 has 8cm vertical deflection; 531 has 6cm.
- 532 CRT accelerating voltage is 4kV; 531 has 10kV.
- 532 has no delay line; 531 has a delay line
- 532 has a three stage vertical amplifier; 531 has a four stage vertical amplifier. The extra stage in the 531 is the output cathode followers, presumably improve the frequency response. Lowering the output impedance of the amplifier raises the frequency of the pole formed by the capacitance of the vertical deflection plates with the output impedance of the the vertical amplifier.
