Free Modular

Offset/Atten

A utility module to scale, shift, and invert signals. Has two identical, independent channels. Each can attenuvert (attenuate and/or invert) an input voltage and add a constant offset voltage.

Resources

• Manual
• Assembly instructions and BOM
• Interactive BOM: front panel, back panel
• Faceplate stencil SVG
• GERBER files:
  • Faceplate: JLCPCB, PCBway
  • Front panel: JLCPCB, PCBway
  • Back panel: JLCPCB, PCBway
• Parts on Tayda: cart link, quick-order CSV
• Source files
• Schematic PDF

Details

DIY difficulty: Very easy
HP: 4
Power usage:

	Typical	Maximum with typical connections	Absolute maximum (all outputs shorted to ground)
+5V	NC	-	-
+12V	17mA	25mA	41mA
-12V	17mA	24mA	37mA

Available on Etsy

You can buy PCBs, full kits, or hand-assembled modules directly from me on Etsy