Inside the Arbiter Soundimension Echo Unit | Rare Vintage 1960s Magnetic Disc Delay Restoration

Описание: In this video, I take you inside one of the rarest vintage delay units ever made: the Arbiter Soundimension Echo Unit, a magnetic disc echo from the late 1960s.

This is a full technical walk-through intended to help future owners, collectors, or restorers understand the unique mechanics and electronics behind this elusive piece of pro audio history.

What’s Covered in the Video:
• Overview of the magnetic disc echo design
• Crouzet Type 590 motor details (240V, 50Hz, 600 RPM)
• Diagnostics and transformer issues
• Restoration work done so far
• What still needs attention
• Test results with external 240V AC power
• Thoughts on repair paths for anyone restoring their own unit

This unit is part of an ongoing restoration project. The goal is to return it to fully functional status and preserve this unique take on analog echo — a mechanical alternative to the Binson Echorec or tape-based units.

If you’ve worked on one of these before or have suggestions feel free to share in the comments.

Specs Recap:
• Manufacturer: Arbiter (England)
• Echo Type: Magnetic Disc
• Motor: Crouzet Type 590 — 240V AC, 50Hz, 600 RPM
• Era: Late 1960s
• Condition: Partially restored, transformer under load fails

Comments welcomed from techs, collectors, or anyone with insights on transformer substitutions, custom windings, or echo unit history.