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Extra Zero Reading my article on Electronic Organs again in the July issue I see that an error found its way into it. I refer to page 27, middle column, 12 lines down. There you list the three difference frequencies as 1900, 2000, and 2300 Hz. They should be 1900, 200, and 2300 Hz. It's that 200 one that the following paragraph refers to as being relatively easy to separate, which it would not be at 2000 Hz. NORMAN H. CROWAURST; Gold Beach, Oregon Tape Storage Today I was looking over a back issue of AUDIO, the March 1969 edition, and discovered something that almost everyone I have mentioned this to seems astonished at the implication. Page 56 shows a TV flanked by two speakers. Situated in between the speakers are two sections of recorded tapes! Imagine the increase of hiss level, among other damages,. that the fields as they are shown to exist is imparted to these tapes! If one were to take a simple compass and hold it in the area of the tape, one would see the wildly moving needle indicating the magnetic fields present. Most speakers are not too well shielded and thus produce damaging conditions to store tapes. I have found that vacuum cleaners radiate at least 3 ft. from their motor shell. BOB FORSBURG; Orinda, Calif. Forgotten City It seems like a long time since there has been an audio show in Chicago. Why is this? I know of quite a few audio fans that are dying to attend an honest to goodness audio show and not one that is used to show the latest line of equipment by the local retail houses. What seems to be the problem? I am certain that there are enough people interested in audio to make it pay in the area. Facilities are not a big problem. PAUL D. Mn A Chicago, Illinois Directory Correction The September issue of Audio contains erroneous references to TEAC cassette equipment designated as Models #1250 and #1624. DAVID B. MONOSON; Marketing World, Ltd., New York, N.Y. TO OUR READERS: A post office directive requires publishers to pre -sort magazine mailings by 5-digit zip codes. In order to ensure the same prompt delivery of your copy of Audio, please check the address label from this issue. If it does not contain the 5-digit zip code, please write it in and mail it back to Audio, 134 N. 13th St., Phila., Pa. 19107. --------
(Audio magazine, 11/1969) Also see: = = = = |
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