Function:

Monoraul Audio Amplifier, with two inputs, one for audio, one for sidetone, capable of driving 8-ohm headphones

Input/Output:

• POWER: 9-15 VDC, 5.5 x 2.5mm power jack
• AF IN #1: Zin >= 5K, RCA Jack
• AF IN #2 (Sidetone): Zin >= 5K, RCA Jack
• HEADPHONES: 1/8 " Stereo Jack
• SPKR (Optional): RCA Jack

Operator Controls:

• AF GAIN (pot)
• SIDETONE LEVEL SET (can be screwdriver trimmer)

Key Specs or Limitations:

• 0.5 mV, 1 KHz Sine at input gives full volume audio with AF GAIN control set midway

Misc Notes: