Recent content by sarathk

  1. S

    PCB drill press design

    Add a spiral spring to one of the vertical round metal bar.
  2. S

    AR-2500B YAMAHA GUITAR AMP.

    If anybody have AR-2500B2 YAMAHA GUITAR AMPLIFIER please help me to find the number of TR3 transistor connected to the heat sink. Please open your AR-2500B AMP AND HELP ME.  Thanks.
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