Agilent 420C Coaxial Crystal Detector

The HP 420C is a point contact detector with the following characteristics:

• Freq Range 10 MHz - 12.4 GHz
• Freq response +/- 2db
• SWR < 2.0 into 50 ohms
• Sensitivity > 0.15 mv/microwatt
• Max input (Peak or Average) 100 mw
• Short Term max input (<1minute) 100 mw
• Output voltage polarity Negative
• Original retail price $110
• If your detector has option 002, it has a square law response