(use browser back button to return to HT-220 Page) Subject: Motorola Equipment Parts Identification List For all you junque collectors of 20th century Motorola "boatanchors" and "doorstops" equipment, this listing can be used as a identifier. The following info is from a 1979 Motorola Communications Division Parts Price List. Motorola Parts Numbering System In the Motorola parts numbering system, the first one or two digits of the part number relates the part to a particular category. These "category" or prefix digits always appear before the first digit of the part number. With this numbering system, it is also convenient to identify a "family" of parts by the part number. For example, part number 48-82466H identifies a series of silicon diodes. They are identical in shape physically, but differ in electrical ratings. A suffix is added to the part number to denote different electrical ratings. For example: Prefix Body Suffix Ratings 48C 82466H 12 100 volt 48C 82466H 13 200 volt 48C 82466H 14 300 volt 48C 82466H 15 400 volt 48C 82466H 16 500 volt NOTE: The letter following the prefix, such as the "C" in the example, 48C82466H, is for internal use only and is not used in this price list. IT IS EXTREMELY IMPORTANT. however, that all other digits and letters (prefix, body, and suffix) be included when ordering parts. A part number lacking either prefix or suffix or with the omission of any digit or letter, except for prefix letters, will delay the processing and prompt shipment of your order. Numerical Category Listing for Parts Prefix Description 1 Miscellaneous Assemblies (Make or Buy) 2 Nuts -- All Types 3 Screws and Bolts -- All Types 4 Washers -- All Types 5 Rivets, Eyelets and Grommets 6 Carbon and all other type composition resistors 7 Brackets, frames, supports, and similar formed parts 8 Fixed paper capacitors (condensers) -- All Types 9 Sockets and receptacles, all types of female connectors 10 Wire 11 Sleeving 13 Medallions, Escutcheons, Grilles, and Bezels 14 Insulators, stamped or molded 15 Housing, Cases and Covers (formed) 16 Cabinets 17 Resistors, wire wound (Fixed and adjustable) 18 Resistors, variable (composition or wire wound) 19 Capacitors (variable, adjustable and fixed) 20 Capacitors (variable) 21 Capacitors (fixed) 22 Cotter and groove pins 23 Capacitors (Electrolytic) 24 Coils, chokes and transformers 25 Transformers, chokes and coils 26 Shields, (coil, transformer, and tube) 27 Chassis bases and sub-bases 28 Plugs (single and multiple), all types of male connectors 29 Soldering and crimp lugs, single terminals 30 Wire, Cable, Cords, shield loom and braid 31 Terminal strips, panels with terminals 32 Gaskets, shims and sealing parts 33 Nameplates and Decals 34 Dial scales 35 Screens, Grille Cloths, and Baffles 36 Control knobs, and control levers 37 Sleeving and loom 38 Plug buttons and push buttons 39 Contactors (wiping and finger) electrical 40 Switches 41 Springs 42 Clamps, clips, straps, bands, rings, and retainers 43 Bushings, sleeves, flanges, hubs, balls, spacers, and inserts 44 Gears 45 Cams, actuating levers, links, arms and slides 46 Studs, stops, blocks and mechanical plugs 47 Shafts, rods and bars 48 Vibrators, rectifiers, crystals and transistors 49 Pulleys, wheels, discs, and drums 50 Speakers, microphones, earphones, headsets, and handsets 51 Res. Caps (Res., cap, combined integral units.) 52 Pointers 54 Paper Labels, tags and instruction cards 55 Hinges, catches, locks, keys, and handles 56 Cartons, bags, sacks, envelopes and boxes (paper, plastic, or cloth) 58 Couplings, fittings, adaptors, plumbing, and waveguides 59 Motors, magnets, and cartridges 60 Batteries, and bias cells 61 Windows, lenses and transparent crystals 64 Plates and panels 65 Fuses, pilot lights, lamps, and special electron tubes 66 Tools (service and installation) 67 Fuse Blocks 68 Service Manuals and Operating Instruction Books, Sheets, Cards and Manuals 69 Service illustrations other than schematic diagrams 72 Meters, clocks and indicating devices (Electrical and Mechanical) 73 Engineering Schematic Diagrams and Calibration Curves 74 Coil Forms 75 Cushions, Shock Mounts, Bumpers, Pads, Plastic and Rubber Feet 76 Tuning cores and slugs 77 Tuners (Purchased and make assemblies) 80 Control Devices (Relays, Timers, Thermostats, and Thermocouples) 84 Printed Circuit Panels 85 Antennas -- all types except loops 95 Tubes, Receiving, Radio, TV, etc Motorola Kits 1st Letter: Indicates type of equipment by group: "T" -- Two-way -- Includes all Motorola 2-way line Mobile and Base Station and their accessories. "N" -- Portable-includes miniaturized equipment, "Handie Talkie" units, pagers, etc. and their accessories. "R" -- Parts department item. "S" -- Includes precision test equipment, closed circuit television. traffic light equipment, and other special products. 2nd Letter: Indicates what the Item is: A -- Antenna B -- Boxes or packing kits C -- Control Heads or Control Panels D -- Drop Ship items E -- Service and Conversion kits F -- Filters G -- Panels (metering panels) H -- Housing and Cabinets J -- Coil Kits K -- Cable Kits L -- Miscellaneous non-categorized Items M -- Microphones P -- Power Supplies R -- Receivers S -- Speakers T -- Transmitters U -- Unified Chassis 3rd Letter: Indicates frequency band: A -- Below 25 MHz B -- 25 to 54 MHz C -- 72 to 76 MHz D -- 144 to 174 MHz E -- 400 to 470 MHz F -- 890 to 960 MHz N -- Not frequency sensitive (example: Control Heads, Speakers. etc.) The body number may be commonly used and duplicated in a group of similar kits, etc. For example: In the TCN 6001 series Control Heads the 6001 is kept in the model number and the differences are shown in the last two letters -- AS, AC, AD, etc. (use browser back button to return to HT-220 Page)