Recent content by chrono10

  1. chrono10

    simple amplifier circuit.

    after much hassle and headache, i've finally turned for help to get this thing working. I have a simple minijack microphone (unamplified) that i want to use with my PC, but my PC requires the microphone to be amplified, so I had the bright idea of making a simple amplifier. I thought it would...
  2. chrono10

    7805 overheat and Clock signal

    Oh, no, no, it says "the CPU sends out 16 data clock pulses on pin 2". The controller doesnt' generate it's own clock, the SNES CPU (or my setup) generates the clock. So it doesn't have to be a 60Hz clock. At first I thought the controller generated it's own clock too, but i tested it and it...
  3. chrono10

    Who is using the oldest computer?

    I have a Mac Performa 6500/250 PowerPC Processor. It's pretty old and arguably useless for modern day GUI usage (netscape will freeze, lots of the long dead lock waits accompanied with the preX MacOS). It came with 32MB of Ram, and I upgraded to about 96MB along with an 8GB from 4GB hard drive...
  4. chrono10

    7805 overheat and Clock signal

    I'm positive the 7805 overheats because it heats the whole breadboard up, and with less ICs (just the counters) the clock signal is perfectly stable (otherwise it's stable for a few seconds, then goes bezerk). The transformer I'm using is 13.5 volts, and the 7805 shoudl handle up to 20 volts, so...
  5. chrono10

    7805 overheat and Clock signal

    I'm trying to decode serial data using a 74F673A 16-bit serial-in/parallel out IC. I use two 7490 decade counters along with a AND gate to give me a HIGH signal on the 16th count (counter is set to count from 0 to 16). The high signal should activate the 74F673A to parallel load the storage...
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