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The Hammond organ, created by a company of the same name, was originally intended for use in churches during the s, but by the late s it had become associated with rock, blues and jazz. A simple dictionary definition of the instrument is "an electric organ with two keyboards, electronic tone generation, and a wide variety of tone colors. Use the Tonewheel General Hospital website to check the age of your organ by comparing Electronics Industry Codes located on the organ to those on the list. According to Tonewheel: "Thanks to the Electronics Industry Association EIA codes conveniently placed on them by the manufacturer, many individual components can be dated to the year and week of production. To identify the location of the EIA codes check the tubes or valves. Examine each tube and write down the number dating hammond organs located on them.
Hanert  and first manufactured in Around 2 million Hammond organs have been manufactured, and it has been described as one of the most successful organs ever. Tonewheel organs generate sound by mechanical toothed wheels, that rotate in front of electromagnetic pickups. Each tonewheel assembly creates tones with low harmonic content, close to a sine wave. Inside the coil is a permanent magnet. As the teeth of the tonewheel pass by, the strength of the magnetism changes—when the tip of a tooth is closest to the tip dating hammond organs the magnet, the magnetism is strongest. As the magnetism varies, that induces an alternating current AC in the coil, which becomes one of the frequencies used in harmonic synthesis.
It is not unusual to have situations where a new Hammond Organ owner may not readily be dating hammond organs to identify the instrument he or she has. This page has been designed to help individuals find the model and serial number plate on the Hammond Organ instrument. Also one might make a determination by comparing to a picture of a unit or one might eliminate a model possibility just by looking at a picture.
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This is one of the most commonly asked questions, and unfortunately, due dating hammond organs the lack of available factory records on production dates, one of the most difficult to answer. There is some help available however:. Bevis Petersand is currently maintained by Rick Prevallet. It is basically a list of dates and serial numbers for various Hammond and Leslie models. It also provides guidelines to determine, generally, the age of a Hammond, based on certain features and characteristics that changed throughout the model history.
Hanert and first manufactured in Various models were produced, which originally used tonewheels to generate sound via additive synthesis, where component waveform ratios are mixed by sliding switches called drawbars and imitate the pipe organ's registers. Where will find anywhere, the founding of the ballroom, twin. Leo Fender didn't design guitar speakers, he bought off-the-shelf speakers, just like all the other manufacturers of his day did. The same speakers found in Leo's cabs. A simple dictionary definition of the instrument is "an electric organ with two keyboards, electronic tone generation, and dating hammond organs wide variety of tone colors. In the case of instruments made back in the mid to late s, the serial plate probably has the Hammond Instrument Company as the manufacturer name along with the serial number on a metal plate. The plate is most often located on a shelf in the rear of the organ or in the lower right hand corner of the cabinet in the back of the instrument. I was already looking fo similar organs.
To help determine the manufacturing date of Hammond organs and Leslie speakers. Use this form if you would like to submit your Hammond Organ for inclusion in these tables. When you hit the "Submit" button you will see a message advising "Update Successful". Your information will be placed in a holding area for review and added to the dating hammond organs list after acceptance.