Recent content by Cvscam

  1. C

    need a sound device for my circuit

        I have used the insides of a recordable greeting card before.  I have seen the almost the same circuits in a recordable photo frame and a memo minder.  I think Radio Shack sell it under Model: 276-1323. 
  2. C

    "Power?" Inverter

          I have a cheap meter so I would guess it is not true R.M.S.  The 60 watt bulb was not at full brightness, I was using a Radio Shack transformer part number  273-1512 it shows rated at only 3 amps on the low side.  The only parts that heated up was R1 and R2,  the transistors just got a...
  3. C

    "Power?" Inverter

          I have built this circuit using a radio shack transformer and it worked so I did a little testing.  I was using a full charged car battery and I measured 109 volts with no load and I tested it with a 60 watt lightbulb and the voltage dropped to about 105 volts.  I didn't have a way to...
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