Service Manuals & Schematics for Hammond Organs and Leslie Speakers

A service manual turns guesswork into a checklist. It shows the oiling points, the tube layout, voltage charts and the schematic for each chassis, and for a vintage organ or Leslie it is the single most useful tool you can own. This section lists original printed manuals and schematic sheets, sold used as we find them.

The B-3, C-3 and A-100 consoles share the AO-28 preamp and much of their service information, so one console manual covers all three. The A-100 adds a built-in amplifier and speakers. Leslie 122 and 147 cabinets share a manual too, since they use the same cabinet, rotors and output stage; the manual also explains how their inputs and speed switching differ.

Stock changes as originals come in, and we add more titles, including spinet models such as the M-3 and L-100, as we find them. Each listing describes the item's condition, so you'll know about missing pages, notes or wear before you order. Keep originals away from oil and solder; a scan or copy is handy for bench use.