Name: | Bell Sound Systems; Columbus (OH) (USA) |
Abbreviation: | bellsound |
Products: | Model types Others |
Summary: |
Bell Sound Systems, Inc., 555 Marion Road, Columbus 7, Ohio. |
Founded: | 1932 |
Closed: | 1965 |
History: |
Bell Sound Systems, Inc., 555 Marion Road, Columbus 7, Ohio: Has made many communication systems, audio amplifiers, record players with audio amplification and tape recorders etc. It is believed that the 1948 Rider PA Manual has 74 pages of Bell schematics.
"Bell Sound was founded almost twenty-nine years ago, in February 1932. The Company's first products were auto radio sets and quartz crystals for controlling frequency of radio transmitting stations. Later, a line of public address equipment was added. Today, Bell manufactures a full line of stereophonic components, tape cartridge players and stereophonic component-consoles. It is still engaged, exclusively, in the manufacture of electronic products for home entertainment. As a division of Thompson Ramo Wooldridge Inc., Bell is today associated with a company whose scientific, engineering and manufacturing talents are already pre-eminent in the field of electronics, missles and nuclear energy. Through the application of advanced research, development and production in electronics for home entertainment, the combined resources of Bell and TRW assure that the Bell Stereo Music System you select for your home is the very finest available to you anywhere." |
This manufacturer was suggested by Gottfried Silberhorn.
Country | Year | Name | 1st Tube | Notes |
---|---|---|---|---|
USA | 51 | RC-47 | 7F7 | Record changer and record cutter for 10" and 12" records (33 1/3 or 78 rpm); phonograph an... |
USA | 54 | 2122-C | 6SC7 | Hi-Fi 10-Watt amplifier. |
USA | 56 | 2256 | 12-Watt amplifier. | |
USA | 55 | 2255 | 12AT7 | AM-FM basic tuner. |
USA | 56 | 2199-B | Deluxe 12-Watt amplifier. | |
USA | 55 | 2200C | 6SC7 | Mono hi-fidelity amplifier initially sold without the cage. Later available with either a... |
USA | 54–56 | 3-D | 12AY7 | The Bell Sound model 3D is an AC operated Binaural Ausio Amplifier with equalization and p... |
USA | 55/56 | RT-75 Tape Recorder | 12AX7 | The 3-speed tape recorder and play back unit model RT-75 allows the following speeds: 1 7... |
USA | 56 | 2260 Cub-Corder | 3S4 | 7 1/2 and 3 3/4 inches per second battery-operated, portable tape recorder. Dual track, 5"... |
USA | 56 | 2261 Cub-Corder | 3S4 | The Bell Sound model 2261 Cup-Corder is similar to model 2260, with different speed option... |
USA | 61 | 2441 | Tuner. | |
USA | 54 | PA3715-B | 6AU6 | The Bell Sound model PA3715-B is an AC operated 3 channel 15 watt audio amplifier. We don'... |
Further details for this manufacturer by the members (rmfiorg):
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Deciphering Bell Sound serial numbers
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Matt Endicott
17.May.17 |
1
Recently I found a service notice for a Bell Sound 6060 amplifier which has been uploaded. The notice said the circuit change would be effective beginning with serial numbers starting with 29. Given that bit of information I created a spreadsheet to examine Bell serial numbers and discovered a pattern. This pattern of rules appears accurate at least during TRW's ownership beginning in 19531. (edit) I have now found two Bell products made pre-TRW and serial numbers appear to follow the same patterns. The model/serial number combinations were found by examining photos from RM.org, ebay, google images, and one or two came from soliciting users at audiokarma.org. If anyone has additional combinations to share please let me know and I will add them to the spreadsheet linked below. Bell Sound Serial No rules: From LEFT to Right: 1st digit = production run 2nd digit = year 3rd - 6th digits = sequential unit number Sequential unit numbers appear to be within the context of the production run and year. Example: Model 3030 serial number 190220 = 1st production run, 1959, 220th unit made. Model 3030 serial number 580423 = 5th production run, 1958, 423rd unit made. One might assume serial number 190220 to have been made earlier than 580423, but now we see that assumption would be incorrect. Here's a link to the spreadsheet I created: 1. TRW: Pioneering Technology and Innovation Since 1900, Davis Dyer, 1998 ---Matt
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