Avalon Harmonics R&F PCB Set

This article is for a set of empty PCBs used for building Avalon Harmonics R&F yourself. DOES NOT CONTAIN ANY COMPONENTS.

GitHub BOM & Source: https://github.com/Thorinair/Avalon-Harmonics/tree/master/Modules/R%26F

Includes:
1x Avalon Harmonics R&F Panel PCB
1x Avalon Harmonics R&F Front PCB
1x Avalon Harmonics R&F Main PCB

R&F is a dual slew limiter with a way of independently controlling the rise and fall of both channels.

Each slew limiter can have a slew speed from a very short one to a very long one. Since the curve of the slew limiting is linear, a larger jump in value will result in a longer slew period. The following slew times were measured when going from 0V to 5V and back:
- Slowest rise from 0V to 5V: ~7s
- Slowest fall from 5V to 0V: ~5s
- Fastest rise from 0V to 5V: ~4.6ms
- Fastest fall from 5V to 0V: ~2.7ms

The outputs have circuitry which mitigate voltage drop issues, allowing it to be used for slewing 1V/OCT signals as well. Additionally, both channels have a bipolar LED to monitor the output.

Website Page: https://avalon-harmonics.com/module/RnF/
ModularGrid Page: https://www.modulargrid.net/e/avalon-harmonics-r-f

Features:
- Dual slew limiter
- Independent rise and fall speed
- Linear slew curve
- Status LEDs for output
- Wrong polarity protection
- Size: 3HP
- Depth: 41mm
- Power: +12V: 23mA, -12V: 23mA