From HwB

Need help with the circuits? See the tutorial.

Image:Logo Sub Filters.png

Filters

Active Filters

Bessel

• Highpass: 12dB, 18dB, 24dB
• Lowpass: 12dB, 18dB, 24dB

Butterworth

• Highpass: 6dB, 12dB, 18dB, 24dB
• Lowpass: 6dB, 12dB, 18dB, 24dB

Linkwitz

• Highpass: 24dB
• Lowpass: 24dB

Misc

Operation Amplifier

• Addition
• Inverting Amplifier
• Non-inverting Amplifier

Serial

• C64 to RS232 Interface
• CD32 Keyboard to Serial Interface 1
• CD32 Keyboard to Serial Interface 2

TV

• TV Antenna Ground Isolator - Eliminate Ground Loops