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Ip +Isg Output / Hybrid / Output Transformer Less
 
EL509 ステレオパワーアンプ
 
MJ無線と実験 1995年10月号 に発表
プレート電圧がスクリーングリッド電圧よりも低くなると、プレート電流が減少する分、スクリーングリッド電流は増加する。それならスクリーングリッド電流とプレート電流を一緒に出力することで、歪みが減り、効率が高まる。特に低いプレート電圧で動作するOTLアンプでは効果的。
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File list
| 1z02.pdf | 137kB  |  
    Data sheet of TANGO insulation transformer. | |
16kB  |  
    Output wave form of 10kHz square wave in 8Ω load. | ||
16kB  |  
    Output wave form of 10kHz square wave in 8Ω and 0.1μF parallel load. | ||
17kB  |  
    Output wave form of 10kHz square wave in 8Ω and 0.47μF parallel load. | ||
| AN6781_1-5.pdf | 109kB  |  
    Data sheet of timer IC AN6781. | |
39kB  |  
    Background image on title page.  |  
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17kB  |  
    Externals photograph of EL509.  |  
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| el509.pdf | 103kB  |  
    Data sheet of EL509. | |
25kB  |  
    Package photograph of EL509.  |  
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4kB  |  
    General connection.  |  
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40kB  |  
    Design of chassis.  |  
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35kB  |  
    Design of chassis.  |  
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55kB  |  
    Arrangement in chassis.  |  
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61kB  |  
    Arrangement in upper chassis.  |  
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42kB  |  
    Arrangement in lower chassis.  |  
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29kB  |  
    Wiring for heater.  |  
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25kB  |  
    Wiring for heater.  |  
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73kB  |  
    Wiring for output stage.  |  
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64kB  |  
    Wiring for output stage.  |  
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56kB  |  
    Wiring for drive stage board.  |  
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61kB  |  
    Wiring for drive stage board.  |  
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10kB  |  
    fig1-4  |  
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10kB  |  
    Wiring for screen grid voltage regulator board.  |  
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13kB  |  
    Wiring for screen grid voltage regulator board.  |  
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19kB  |  
    Wiring for timer board.  |  
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29kB  |  
    Wiring for timer board.  |  
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4kB  |  
    Correction of high region distortion.  |  
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7kB  |  
    Correction of high region distortion.  |  
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11kB  |  
    Frequency response characteristic.  |  
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7kB  |  
    Frequency response characteristic.  |  
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14kB  |  
    Distortion rate characteristic.  |  
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7kB  |  
    Distortion rate characteristic.  |  
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7kB  |  
    Ep-Ip characteristic (EL-509).  |  
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15kB  |  
    Output impedance characteristic.  |  
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7kB  |  
    Output impedance characteristic.  |  
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4kB  |  
    Triode connection.  |  
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5kB  |  
    Esg is constant.,Ip+Isg output.  |  
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4kB  |  
    Design of EL509 4 parallel SEPP.  |  
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9kB  |  
    Design of EL509 4 parallel SEPP.  |  
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23kB  |  
    Basic circuit.  |  
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13kB  |  
    Basic circuit.  |  
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24kB  |  
    The entire composition.  |  
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17kB  |  
    The entire composition.  |  
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61kB  |  
    Schematic of this amp (each channel part).  |  
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37kB  |  
    Schematic of this amp (each channel part).  |  
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47kB  |  
    Schematic of this amp (both channel part).  |  
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24kB  |  
    Schematic of this amp (Both channels common parts).  |  
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81kB  |  
    Internal structure of EL509.  |  
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124kB  |  
    Chassis of power supply side.  |  
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177kB  |  
    Chassis of amplifier side.  |  
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76kB  |  
    Drive stage board.  |  
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33kB  |  
    On the front.  |  
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36kB  |  
    Upper right.  |  
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66kB  |  
    Front view.  |  
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45kB  |  
    Rear view. | ||
44kB  |  
    Output wave form of 10kHz square wave in 8Ω load. | ||
43kB  |  
    Output wave form of 10kHz square wave in 8Ω and 0.47μF parallel load. | ||
119kB  |  
    Chassis of half opening.  |  
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24kB  |  
    Chassis of half opening 2.  |  
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77kB  |  
    Chassis of opening, after the diagonal view. |  
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111kB  |  
    Inside of chassis.  |  
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25kB  |  
    Content page.  |  
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30kB  |  
    Title page.  |  
  
最終更新日: 2000/08/01 21:39:07 +0900