The Allen Harpsichord features individual tone generators and tuning pots for each note, allowing for precise tuning adjustments.

The instrument supports all-key polyphony, and the keys provide a satisfying tactile feel.

Suspected prototype retains 61 keys typical of an Electra 300A, contrasting with later models that have 68 keys.

Owners have fashioned custom power supplies and repaired components like the AC-122 transistor to revive sound functionality.

Old batteries are required; modern owners often construct custom power supplies to replace outdated ones.

The Allen Harpsichord’s analog circuit successfully emulates the initial "pluck" of a real harpsichord, although the overall sound may not perfectly match the acoustic version.

One owner found the original 1962 bill of sale and schematics, enhancing historical insight and aiding in restoration efforts.

Known for its use by Lawrence Welk on his show, highlighting its appeal in televised performances.

The instrument's rocker switches tend to oxidize over time, necessitating cleaning for optimal functionality.

Shares internal design elements with the RMI Rock-Si-Chord/Electra-Piano, highlighting Allen Organ's influence on both models.

Prototype models were often made in walnut, unlike production versions which used plywood or plastic for cost efficiency.