For Sale: B&K Model E310B Function Generator. Great for testing and troubleshooting mic amps, audio amps, transmitter modualtion and digital circuits. The function generator produces sine waves from 20 Hz to 2 MHz up to 7 volts RMS and square waves from 20 Hz to 200 Khz at up to 10 Volts Peak. Nice condition and fully operational. $75 with free shipping to the lower 48 states. fsphotos@comcast.net