ADDAC 102 VC FM Radio

• Stereo FM radio (86-106 MHz)
• Controls for tune and volume
• CV inputs for tune and volume with attenuators (switchable from unipolar to bipolar)
• Station search and direct station selection, each with trigger input
• Mute switch with gate input
• Stereo output

ADDAC 102 VC FM Radio

Provides controls like tune, volume and seek 2 outputs for stereo sound

This is Version 2 of this module, Updated in order to be skiff friendly!

With the ADDAC102 FM Radio you'll be able to tune-in FM radio. Besides the ability of station broadcasts as sound generators for your synthesis, you can also have a lot of fun with the fact that its a great noise generator. Static picks up all kinds of great electromagnetic interference!

It provides controls like tune, volume and seek (all of them controllable through CV input) and there's two outputs for stereo sound.

Features

• Tune: sets the radio frequency 87.5 to 108 MHz
• Volume: sets the output volume
• Mute: Hard mutes the output signal
• Seek Up/Down: seeks the next radio station
• Search Up/Down: adds/subtracts 0.1Mhz or 0.2Mhz to the current frequency depending if in EU or US respectively.

Stereo output indicator led
External wire antenna via 2.5mm jack

Jumpers
There are 2 jumpers on the top right of the back pcb:

• SMUTE OFF (no jumper)  / ON (with jumper)
• Soft mute is a digital radio feature that automatically reduces the output volume if no station is detected.
• If you plan to use the radio noise as a source do not place the jumper, if noise is undesired then use the jumper.

EU (no jumper)  / US (with jumper)
North American FM broadcast channels are spaced at every 200KHz frequencies: 99MHz, 99.2MHz, etc. In Europe, channels are spaced at every 100KHz frequencies. If you are located in the US and plan to use it as a noise source, use the EU setting; if you're planning to use it to mainly tune to radio stations in the US, then use the jumper.

There's a special firmware for Japanese radio frequency range (76Mhz to 96Mhz).
Other ranges are also possible. 

Specs

Mechanical:

• Format: Eurorack
• Width: 8 HP
• Depth: 5 cm

Control Voltage I/O:

• CV inputs: ±10v
• Gate in threshold: 2.5v

Electrical:

• Compatible with +-12v and +-15v power supplies
• Max current: 100mA
• Bus Board Cable: 8 × 2 IDC (Doepfer style) connector