Leader Electronics Corp. LAG-120A Instruction Manual

Other manuals for LAG-120A: Instruction Manual
Manual is about: AUDIO GENERATOR

Summary of LAG-120A

  • Page 1

    Model lag-120a audio generator instruction manual leader electronics corp..

  • Page 2

    Contents section 1 2 3 general description . ... . .... .. ... . . .... .. ... ... . .. . .. . . . . 1.1 1.2 l.3 uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications . ... ... .. . ..... . .. . .. .. . .. . . .... . . .. ... . . C o nt...

  • Page 3

    / lag-120a audio generator 1 general des cription 1.1 uses the lag-120a is a wideband audio generator with sine and square output waveforms. Sine wave signals are available with a distor ion of less than 0.4%. Square waves with fast rise time can be used for circuit performance checks. Synchronizing...

  • Page 4

    Veforms. Sine rise time can accomplished 'eration. The :e bench. imhz side. 1.3.2 !. Freq. Range switches: for selection of the output frequency ranges: x10 x100 xlk x10k x100k 10 100 1 10 100 100hz 1000hz (1khz) 10khz 100khz 1000khz (lmhz) 1, frequency dial: marked in hz: 1 to 10; actual output f...

  • Page 5

    /' 2_ operation 2.1 preliminary notes fig. 1-2 rear panel functions. 1. The generator output impedance is 600n, and may be directly connected to loads of 600n or higher impedances. When the impedances require matching, use a high grade matching transformer; for square wave output, use a suitable res...

  • Page 6

    1 or ling n" dc :est ed ne ;t :\g-120a lbo-s13a c c c o o o lmv-181a vin [2j 0 0 0 amplifier 0°0 ©d@ b 0 0 0 o 0 o 0 @ 0 fig. 2-1 equipment and connections for measurements. The specified load resistance. R. Is connected across the output of the amplifier, or test circuit. It should be non-induct...

  • Page 7

    2.4 b. Frequency response the frequency response of an amplifier is determined by applying a constant voltage to the amplifier input. This voltage is chosen so that the amplifier is operated below the overload point. Set the reference frequency at 1khz or 400hz, and set attenuation and vari- able fo...

  • Page 8

    Co .1- iz y o ;t e n avesha pe amplifier response condition rectangular nm satisfactory flat sag low primary inductance inoutput transformer: incorrect values of the deficie. T low frequencies coupling elements rounding high leakage inductance i output transformer or high distributed deficie t hig...

  • Page 9

    /' signal of exactly 1000hz is applied, the oscillator will automatically lock in at 1000hz. Thus, high accuracy can be achieved with the use of a precision frequency standard. In another application, a distorted waveform can be "purified", or filtered, by passing it through the oscillator. External...

  • Page 10

    In at 1000hz. S andard. ed, by passing it i synchronize or : is not affected jroper rating is , or defective e 51 es. A ) 100-115v b) 200- 230v fi . 3-1 ac input connections. Circuit checks and adju rmenrs the location of the principal es points and adjusters is shown in fig. 3,2. Vri02 o vri03 o '...

  • Page 11

    ,/ d. Frequency adjustment: fig. 3-3 square wave adjustmen t. Connect a frequency counter 0 the output terminals. 1. Set the freq. Range switch at x1k, and the dial at "i" set the waveform switch at sine. 2. The counter reading should be 1000hz within ±3% (or between 9 70 and 1030hz). If considerabl...

  • Page 12

    Cl01 ,p 11/1 'willi , (1111'\. .... ,,1' vcioi clldx 4z6p 1)"(11 'ii i' i' ", 11'1'. T' i 1 . 'i i '", i,f! Ii hi' i itl 1 1111 1 " thii­ iii 5- (1) 't] :?:l ttl ;:;:; i"u" i iflill ., iii ,. § 0 (1) \.;.L :l 0 5- ::c (1) v> - ....., i u l l lli uhiiii' ·0 il { '1q " f i i 1/[1" .1 ii 101, ii 1...

  • Page 13

    85061. 5k ® leader electronics corp . 2-6-33 tsunashima-higashi. K ohoku-ku , yokohama, japan. Phone: (045) 541 -2121 telex: j47780 jpleader leader instruments corp. 3800ser avenue, hauppauge, n.Y. 11788 u.S.A. Phone: (516) 231 -6900 telex: 510-227-9669 leader haup printed in japan..