Ramsey Electronics BN9 Stereo Amplifier User Manual


 
2. Intercom
Components required:
DPDT switch (momentary most practical)
Two 8 ohm speakers
Your choice of enclosures
IN
OUT
Low gain BN-9
Remote
Local
3. Mini public address amplifier
Components required:
8 Ohm PA speaker or horn speaker
5K to 100K Potentiometer
Electret microphone or other microphone
10K resistor for microphone
.01uF Ceramic capacitor