Used Tektronix SG505 Oscillator, 10 Hz-100Khz, plug-in

Product Highlights

• Frequency range: 10 Hz to 100 kHz nom. (typ. 9 Hz to 110 kHz) in four overlapping ranges
• Frequency accuracy: 3% of dial reading
• Output level: +10 dBm to -60 dBm into 600 Ω in eight 10 dB steps, plus variable control +2.2 dB to -10 dB from calibrated position
• Output impedance: 600 Ω
• Distortion: < 0.0008% (-102 dB) from 20 Hz to 20 kHz
• Sync output: 200 mVRMS sine to 20 kHz, at least 120 mV @ 100 kHz; 1 kΩ source impedance
• Topology: State-variable oscillator with N-FET (151-1021-00) based AGC. Range switches change capacitors and AGC time constants, main dial changes integrator resistor. Oscillator built from NE5534 amplifiers.