The Tektronix 514 is a monolithic general-purpose oscilloscope introduced in 1949 or 1950.
Using a three-section distributed amplifier, it provides frequency response from DC to 10 MHz. Prior to the 514, customers had to choose between an instrument with 10 MHz bandwidth (the 511) or an instrument with DC response (the 512). The 514 provides DC response and 10 MHz bandwidth.
The 514 uses a 5CPA CRT with a total accelerating voltage of 3 kV (−1.5 kV on the CRT cathode and +1.5 kV on the CRT anode). The standard phosphor for a 514 was P1. The deflection sensitivity of the CRT is approximately 27 V/cm vertical and 32 V/cm horizontal.
Throughout its production run, a 'D' variant was available (514D, with the 'D' being stamped in by hand on some models), which has a 24-section 250 ns lumped L-C delay line. There was also an 'A' version (514-A & 514-AD respectively), which appears to have been available in 1954. (There were also some models marked 'Series A', which may have been a predecessor to the 514A? How does the 514AD differ from the 514D?)
It has no thermal cutoff.
|Frequency response||DC to 10 MHz|
|Input impedance||1 MΩ // 30 pF|
|Vertical deflection||100 V/cm down to 300 mV/cm (DC) / 30 mV/cm (AC), 1 - 3 - 10 sequence|
|Weight||28.1 kg (62 pounds)|
|Power consumption||375 W|