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📄 power_amplifier_50w_osu_ieee_eng.htm

📁 内含各国最基础的电路图,并做了详细的说明,对做底层开发的人员很有用.
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12 
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R1=4.7 ohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R23-25=0.33 ohm / 4W</font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q8=<a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>BD240C</strong></a>
            [on small Heatsink]</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R2-16=47 Kohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">TR1=5 Kohm Top adjust cermet
            trim pot</font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q10=<a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>2N3906</strong></a></font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R3=10 Kohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">C1=330pF NPO Capacitor </font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q11=<strong><a
            href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm">BD249C</a></strong> [on Heatsink]</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R4-5=47 ohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">C2-3-6-7-12-13=100nF 100V
            MKT</font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q12=<a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>BD250C</strong></a>
            [on Heatsink]</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R6=3.3 Kohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">C4-5-8-14=100uF 63V</font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">D1-2=12V 0.5W ZENER</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R7-8=2.2 Kohm 0.5W</font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">C9=47pF NPO Capacitor </font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">D3-4-5=1N4002</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R9-15=1 Kohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">C10-11=100uF 16V</font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">D6-7-8-9-10=1N4148</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R10=6.8 Kohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">Q1-2-3=<a
            href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>BC550C</strong></a></font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">J1=3pin connector with
            2.54mm step</font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R11-17=1.1 Kohm 1/4W </font></small></td>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">Q4=<a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>MPSA56</strong></a></font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">J2=5pin connector with <small>screws
            </small></font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R12-18-19-20-21-22=220 ohm
            1/4W </font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q5-9=<strong><a
            href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm">2N3904</a></strong></font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">F1-2=Fuse2A Fast </font></small></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R13=330 ohm&nbsp; 1/4W </font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q6=<a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>MPSA06</strong></a></font></small></td>
            <td width="34%" bgcolor="#FFF3E8"></td>
          </tr>
          <tr>
            <td width="33%" bgcolor="#FFF3E8"><small><font face="Verdana">R14=22 Kohm 1/4W </font></small></td>
            <td width="34%" bgcolor="#FFF3E8"><small><font face="Verdana">Q7=<a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm"><strong>BD239C</strong></a>
            [on small Heatsink]</font></small></td>
            <td width="34%" bgcolor="#FFF3E8"></td>
          </tr>
        </table>
        </td>
      </tr>
    </table>
    <table border="0" width="100%">
      <tr>
        <td width="100%"></td>
      </tr>
      <tr>
        <td width="100%"><table border="0" width="100%">
          <tr>
            <td width="33%"></td>
            <td width="33%" bgcolor="#FFFF80"><p align="center"><font face="Tahoma" color="#800000"><small><strong>Power
            Supply</strong></small></font></td>
            <td width="34%"></td>
          </tr>
        </table>
        </td>
      </tr>
      <tr>
        <td width="100%"><p align="center"><img src="Power_supply.gif" tppabs="http://users.otenet.gr/~athsam/Power_supply.gif" width="711" height="289"
        alt="Power_supply.gif (20965 bytes)"></td>
      </tr>
      <tr>
        <td width="100%"></td>
      </tr>
      <tr>
        <td width="100%"><table border="0" width="100%">
          <tr>
            <td width="33%"></td>
            <td width="33%" bgcolor="#FFFF80"><p align="center"><font face="Arial" color="#800000"><small><strong>Part
            List</strong></small></font></td>
            <td width="34%"></td>
          </tr>
        </table>
        </td>
      </tr>
    </table>
    <table border="0" width="100%">
      <tr>
        <td width="33%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>TR1=220VAC/2X28V&nbsp;
        6A</small></font></td>
        <td width="33%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>C1=33nF 630V</small></font></td>
        <td width="34%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>C9-10=15000uF
        63V</small></font></td>
      </tr>
      <tr>
        <td width="33%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>F1=Fuse 1A
        Slow </small></font></td>
        <td width="33%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>C2-3=22nF
        100V&nbsp; MKT </small></font></td>
        <td width="34%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>C8-11=100nF
        100V&nbsp; MKT</small></font></td>
      </tr>
      <tr>
        <td width="33%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>S1=2X10A SW</small></font></td>
        <td width="33%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>C4-5=22nF
        100V&nbsp; MKT</small></font></td>
        <td width="34%" bgcolor="#FFF3E8"><font color="#000000" face="Verdana"><small>D1-4=
        rectifier bridge&nbsp; 400V 35A</small></font></td>
      </tr>
      <tr>
        <td width="33%" bgcolor="#FFF3E8"><small><font color="#000000" face="Verdana">JF1=3P
        Connector 3.96mm step</font></small></td>
        <td width="33%" bgcolor="#FFF3E8"><small><font color="#000000" face="Verdana">C6-7=15000uF
        63V</font></small></td>
        <td width="34%" bgcolor="#FFF3E8"></td>
      </tr>
    </table>
    <table border="0" width="100%">
      <tr>
        <td width="100%"><small><font color="#000000"><p align="center">&nbsp;</p>
        </font></small><div align="center"><center><table border="0" width="100%">
          <tr>
            <td width="100%"><p align="center"><strong><font face="Westminster" color="#FF0000"><small>Sam
            Electronic Circuits</small> </font></strong><font color="#FF0000" face="Arial"><small><small>02/04</small></small></font></td>
          </tr>
        </table>
        </center></div><div align="center"><center><table border="0" width="100%">
          <tr>
            <td width="100%" bgcolor="#FFFF00"><p align="center"><small><font color="#000000">[ <a
            href="index.htm" tppabs="http://users.otenet.gr/~athsam/index.htm"><strong>Home</strong> </a>] [ <a href="database.htm" tppabs="http://users.otenet.gr/~athsam/database.htm" target="_blank"><strong>My
            Database</strong></a> ] [<a href="guestbook.htm" tppabs="http://users.otenet.gr/~athsam/guestbook.htm" target="_blank"><strong>My Guestbook</strong></a>
            ] </font></small></td>
          </tr>
        </table>
        </center></div></td>
      </tr>
    </table>
    </td>
  </tr>
</table>
</body>
</html>
12

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