    





    Tunin~Yo~ ORe~n
    
    Probably one of the hardest parts of constructing our toy organ is
    finding a tuning method. One proven method is to use an electric
    organ. However, many of these are unstable and niay have drifted.
    The Hammond B3 or C3 is a good instrument to use. With the highest
    drawbar pulled out only, the following notes, starting with the low
    F J closely agree with the frquencies specified.
    
                       F5 697 Hz.
                       A6 880 Hz.A better idea is,of course, to use an accurate
                       C#6 llOS Hzs~gnal generator. If the generator is off, you
                       E6 1318 Hzc~n calibrate it by us~ng A= 880 Hz. Or, Ma Bell
                       F#6 14~9 ~herself can help you. A touch tone phone operates
                       ' ~Zvery accurately w~th each row and column having
                       G#6 1661 Hz.a single frequency. To get 697 H~, simply press
                       E7 2637 ~z.       any two buttons on the top row.
    
                o       ~'            To tune a s~gnal generator with
                0    ~, r             ~a touch-tone phone, connect the
               „U     n ~4           ~generator output to the two mic-
                I     I I              rophone terminals in the phone
       r                            .handset, press l and 2, and tune
    
                                                                 2   ~3 1 6q7       generator until "beats" stop.
                                I                                              Generator is now putting out 697.
                                                             . r~~~  ~---           ~Several YIPLs have written us that
    
                   ~ I 1 5 c - 770                                             the original oscillator schematic
                   . ~ _                                                       has unnecessary parts for tempera-
                                                                               ture stability. We have found that
                   ____                                                        best results necessitate these parts
                   7 8 9 - -852                                                because pay phones are often in
                                                                               cold parts, and one would not want
                                                                               to call a fr~end long distance just
                   ~ q~l                                                       to play him an out-of-tune organ, now
    
    Published for informational purposes only by Youth Hot Line Reports, Inc.
    
    For those of you who are interested in obtain~ng the or~ginal information
    on boxing, the Bell System Technical Journal, in 1960 or in 1961, put out
    an article called Multifrequency signaling systems. You might find it ~n
    an eng~neering library, if Bell doesn't find it first. We would appreciate
    it if an astute ~YiPPler would go there armed with a razar blade, and after
    liberating the article, send it to us for publication. We w~ll return it
    to her/him. A subscription to YIPL costs $4/yr. if you got.
    
                    TAP Room 418, 152 W 42 St.,N.Y.,N.Y. 10036
    
    ~o^~ Ch`~ct~o ~/'~ ~ J ~6. 27>
    
    He flad Their Number
    
    A 1~ Aageles man ~bo figured out bo~v to lap bim&eU
    ~to Pacif~c Telephonc Campanv's compu~r by usI~g hl.
    push buttoo ph~oe $'as arre5ted Tuesday for S~Rš8g more
    t~an Sl millino worth ol thc com'Dany~s egnipme~ Pol~e
    sa~d Jerr' N. Schneider, 21, h~d beco ordering tbe coni-
    puter to bave equipment ~ent to a eompaDy wareboux ~he'e
    be had acqufred ke,ys, a~d he plcked it up in tbe rarly mor~
    log hours bPIore ~varchousemen ;.rri~ed. The gambit bie-
    came hO successl~l, police sald, tbal Schneider slarkd h:s
    O~D bDsinPss selling [elephone equipment, and had hired ;0
    empio~es to help him,
    
    I WJ:~'`
    
    ~1

    





    
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