Filter
Top Products
BN9 APPLICATION IDEAS:
1. High sensitivity listening device
Components required:
• Small microphone such as RAMSEY MC1, mini-electret mike.
• 5K to 100K potentiometer for volume control.
• 10K resistor (brown-black-orange)
• .01uf Ceramic capacitor
NOTE: To make a full-performance “big ear” listening system, use a snow coaster or large
plastic popcorn bowl. Mount the microphone in the center of the “focal-point” of the parabolic
bowl.
BN-9
Focal
p
oint
IN
OU T
Hi gh gai n BN- 9