TLN-861 Dunsel

Description

The TLN-861 Dunsel is a utility module that generates several commonly used signals from an input voltage. When patching my synth, I frequently require unity gain inverters, adders, subtractors, half/full wave recitifiers, and level shifters. While it's possible to generate these signals using MOTM-830, Oakley WaveFolder, or Oakley Multimix modules, that's not often the best use of those resources. Enter Captain Dunsel to the rescue.

• INV A/B: unity gain inversion of input.
• NEG A/B: negative portion of input.
• POS A/B: positive portion of input (half wave rectification).
• FWR A/B: full wave rectified version of input.
• A/B - 5: level shifted version of input (-5V level shift).
• A/B + 5: level shifted version of input (+5V level shift).

• A + B: sum of A and B inputs.
• A - B: difference of A and B inputs.

The TLN-861 Dunsel can be built using MUUB daughterboards. The first version I built (Rev 1) used four MUUB-4 boards and three MUUB-2 boards stacked two or three boards high. That version was a bit cumbersome to put together. I then realized I could simplify things considerably by using two MUUB-3 boards and one MUUB-2 board (Rev 2).

Contact me if you wish to purchase PCBs.

Total current draw for TLN-861 is 38 mA @+15V and 38 mA @-15V.

Downloads

The User Guide does not contain detailed explanations on how to install parts or which kinds of solder to use. The intended audience is the experienced kit builder who is quite comfortable building a circuit from a description, a parts list, and a schematic. Calibration routines are included.

Note that the User Guide describes building a Dunsel using four MUUB-4 boards and three MUUB-2 boards (Rev 1). I don't recommend building it this way; you are better off building it using two MUUB-3 boards and one MUUB-2 board (Rev 2). See the Rev 2 construction photos and notes for more info.

View the TLN-861 User Guide rev 1.0.1 (pdf)

Graze over the TLN-861 Schematics rev 1.0 (pdf)

Detailed panel cutout diagram (pdf) with notes for those who want to build their own panel.

MOTM-style front panels for this module can be ordered from The Bridechamber.

Pictures

Rev 1 Prototype with Plexiglass Panel	Rev 2 Final Version with Bridechamber Panel

Rev 1 construction photos. I don't recommend building it this way.

Rev 2 construction photos and notes. This is a more compact way to build a Dunsel.