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Unique Catalogue reference number

Accession list letter and number

Status of this record and
date of last change of status

Instrument name



Date and 
place of manufacture

Intended for use in

Original Power source

Power source now

Instrument status

Short description

Technology used

Media played


Rarity (guess at working examples worldwide)

Date acquired

How acquired

Current location in Museum

Organ, tonewheel






Organ, tonewheel


Model BA


Chicago USA

Home, church, band, recording

Electricity 110v 60 Herz

Electricity 240v 50 Herz

Restored and demonstrated on tours

Tonewheel organ with player mechanism. This model BA Hammond Organ is fitted with a roll playing mechanism by Aeolian. The rolls control the playing of the notes on both manuals and the pedals, but are not self-registering. Tonal controls etc. are manually added using printed instructions on the roll as a guide.

Sound wave generated in magnetic pickup coil by rotating toothed wheels.

Proprietory perforated paper rolls. 120 note tracker bar operating 95 tone wheels.

Musical Museum



Gallery 2

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