The advantage is it acts as a non-repeater, but in a one-block-wide formfactor.

This works by utilizing the observer pressed to a sticky piston, which will only fire a signal to the downward piston when touching, preventing a feedback loop.

The block under the sticky piston can be any conductive block (dirt or stone is OK, not glass, etc)

The repeater can be set to any delay. Its function is to prevent redstone powder from bridging adjacent blocks.

Try pressing an observer into a piston. The advantage is it acts as a non-repeater, but in a one-block-wide formfactor.

• This works by utilizing the observer pressed to a sticky piston, which will only fire a signal to the downward piston when touching, preventing a feedback loop.
• The block under the sticky piston can be any conductive block (dirt or stone is OK, not glass, etc)
• The repeater can be set to any delay. Its function is to prevent redstone powder from bridging adjacent blocks.

The breakdown: