Signal Generator Question

Discussion in 'General Electronics Chat' started by BassNGuns, Jan 28, 2014.

  1. BassNGuns

    Thread Starter New Member

    Dec 9, 2013
    I used to be a bench tech years ago and now am getting back into repairing amps and radios as a hobby.
    My question is, what's the best thing to buy as far as a Signal Generator for signal tracing?
    Should I put a kit together that you may know of or is there a really cool inexpensive one that you could fill me in on?
    I'd also like to use it for injecting 455khz signal into an IF stage (or am I thinking of another piece of equipment I need).
    Thanks in advance. :)
  2. MrChips


    Oct 2, 2009
    You can build a simple 2-transistor battery powered oscillator/probe into the body of a used hi-liter marker pen.

    You can also build an audio probe using a simple one or two transistor amplifier driving earphones.

    For a 455kHz oscillator, look into 455kHz SAW filter/oscillator.
    BassNGuns likes this.
  3. alfacliff

    Well-Known Member

    Dec 13, 2013
    what kind of accuracy do you want? will a dial work, or would you want digital? what are the requirements of the radios you are working on? like frequency range and such?
    I got a couple of wavetek 3000 series generators off ebay a whiloe back and with a little fixing up, I now have a very nice generator that goes up to 512 mhz or so, with both am and fm, and calibrated output in microvolts.
  4. BassNGuns

    Thread Starter New Member

    Dec 9, 2013
    A dial would work fine.
    But for the price they sell used, I can get a new one for just a few dollars more.
    I was wondering if there was some newer thing out there that was even handier.
    Maybe even having more features.