Tektronix Encore

Krohn-Hite 7602
RF Amplifier, DC to 1 MHz, 34W, 282Vrms

Amplifiers - RF and Microwave >> 1 GHz or Less and 100 Watt or Less >> RF Amplifier, DC to 1 MHz, 34W, 282Vrms
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Manufacturer: Krohn-Hite
Model: 7602

Krohn-Hite 7602 RF Amplifier, DC to 1 MHz, 34W, 282Vrms

Electronic Test and Measurement Equipment

Krohn-Hite 7602 RF Amplifier, DC to 1 MHz, 34W, 282Vrms Product Datasheet Download Product Datasheet

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Product Overview


The Krohn-Hite 7602 Amplifier features 34 watts of continuous power that offers extended output power and volt age capabilities, low distortion, versa tility and the latest in hybrid CMOS power operational amplifier technology, with performance features not available in other power amplifiers.

The Krohn-Hite 7602 (and 7602M) provides 34 watts of continuous power (34 watts at dc) 34 watts of continuous power (68 watts at dc), and 282V rms (800V p-p). The frequency response is ±0.1dB to 10kHz, and the distortion contributed by the amplifier is <0.01% to 5kHz and <0.3% to 100kHz. The voltage gain can be either inverting or non-inverting and has selectable ranges from 0dB to 14dB, 14dB to 28dB and 28dB to 42dB (a voltage gain step of 5), and is continuously variable between the ranges.

Other fea tures include: modes of A, A–B and –B; common mode rejection of 80dB; in put coupling of ac or dc; a meter that is selectable to display heat sink tem peratures in °C, output peak voltage and average output current. A dc offset control is also provided that is variable from 0V to ±200V. The 7602 provides a balanced output and plus and minus voltages simultaneously.

Specifications of the 7602 include:

Frequency Range: dc to 1MHz.


  • 1k Ohm Load: 17W rms, 34W dc and peak, dc to 500kHz; 5W rms to 1MHz.
  • 600 Ohm Load: 10W rms, 100Hz to 1MHz; 5W rms, 10W dc and peak, dc to 100Hz.

Volt age

  • No Load: ±200V dc and peak, 141V rms.
  • 1k Ohm Load: ±184V dc and peak, 130V rms, dc to 500kHz; ±113V peak, 80V rms at 1MHz.
  • 600 Ohm Load: ±113V peak, 80V rms, 100Hz to 1MHz; ±78V dc and peak, 55V rms, dc to 100Hz.

Current: 910 ohm load, ±200mA peak, 141mA rms, dc to 500kHz.

Frequency Response: ±0.1dB, dc to 10kHz; ±0.25dB to 200kHz; ±0.5dB to 500kHz, 0-130V rms; ±0.5dB to 1MHz 0-80V rms.

Harmonic Distortion: <0.01% to 5kHz and 175V peak out put; <0.05% to 200V peak; <0.3% to 100kHz.

Voltage Gain: 0dB to 42dB in three ranges; 0dB to 14dB, 0dB to 28dB, 0dB to 42dB; continuously variable between ranges.

  • Step Accuracy: ±0.1dB plus frequency response specification. Gain steps are 14dB at max variable gain control setting or a voltage gain of 5.
  • Stability:

Dynamic Range: >80dB.

Hum and Noise (2MHz band width): re ferred to out put,

gain range.

Phase Shift: A input 0° ±1°, B input, 180° ±1° dc to 10kHz increasing lin early 60° lag ging at 1MHz.

Model 7602: (In verted out put rel a tive to non-in verted) 180°, –0.3° at 10kHz; 180°, –3° at 100kHz; 180°, –20° at 1MHz.

Squarewave Response

  • Rise/Fall Times: 120ns to 50Vp-p.
  • Slew Rate: >600V/µs, 400Vp-p.
  • Aberrations: <5%.


Regulation: <0.1%, No load to 1k ohm load, dc to 10kHz, rising to 2% at 1MHz.

Coupling: DC.

DC Level: Nominal zero volts; vs. temperature, 2mV/°C.

DC Off set Control (no load): 0V to ±200V.

DC Level Stability

Vs. Line:

Vs. Temperature: <0.01%/°C or 2mV/°C whichever is greater.

Internal Impedance:

Output Protection: Protected from over loads with a unique foldback limiter which keeps the out put current within safe operating regions. Kick back diodes clamp kick back voltages to the supply.


Modes: A, A–B, –B.

Maximum Voltage (with out damage): ±200V dc referred to ground.

Maximum Common Mode: 0dB to 14dB range, ±200V peak; 14dB to 28dB range, ±40V peak; 28dB to

42dB range, ±8V peak.

Common Mode Rejection: 80dB, dc to 200Hz; 60dB to 1kHz; 40dB to 10kHz; rising to 20dB at 1MHz.

Sensitivity: ±1.6V peak.

Coupling: Direct (dc) or capacitive (ac) with low frequency cut off of approximately 1Hz.

Impedance: 1 Meg ohm in parallel with 30pF with front inputs only; 65pF with front and optional rear inputs, independent of input gain setting.

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