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PostPosted: Tue Apr 24, 2018 8:20 pm 
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Location: Coquitlam, BC, CA
Well, this might also belong in the Vintage Audio or Tube sections but I now have an old Heathkit IG-72 tube signal generator! Tube! So it works, but how accurate now I don't know. At any rate it was coming home with me, I tried one of those little generator kits and it failed miserably.


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PostPosted: Wed Apr 25, 2018 5:49 am 
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Location: toronto, ON, CA
I have seen old signal generators for sale at A1 Electronics in Toronto


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PostPosted: Wed Apr 25, 2018 6:06 am 
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Joined: Thu Aug 18, 2005 3:44 pm
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Location: Repentigny, QC, CA
Yup welcome to tube world, might not be the most precise to qualify new factory products, but it's all right for go no go tests for sure.
You'll have to let it cook for a 2-3 hours to stabilize.
If you want very low THD% a CD player would do it cheap.


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PostPosted: Wed Apr 25, 2018 7:01 am 
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It was the finding of it that's most interesting; and the design is older than I am from 1962. I think, with a little testing and calibration, that it would be good enough to use on cassette decks. I also have an old Sanwa analog meter, some huge thing. I'll show some more pics once I get the guts dusted off, looks good inside.


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PostPosted: Wed Apr 25, 2018 3:25 pm 
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Joined: Mon Mar 31, 2008 9:17 am
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Location: Toronto, ON, CA
I found one too. Does all nature of waveforms, sweeps, etc, with a built-in counter. It's an app on my smartphone....5 bucks lol.

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PostPosted: Wed Apr 25, 2018 3:41 pm 
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Really? Well I know just where you can plug it in.....


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PostPosted: Wed Apr 25, 2018 3:48 pm 
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rustee wrote:
Really? Well I know just where you can plug it in.....

Nice. That's ok, I know where to plug it in too. :mrgreen:

Just pointing out the tech development, particularly the usefulness of these tiny mobile computers. I had an old Heathkit transistor tester years ago that was the size of a small suitcase and ran on a dozen D cells. Now they come included in hand held multitestors.

Sometimes old is good....but not always. Enjoy refurbing/calibrating that beast.

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PostPosted: Thu Apr 26, 2018 5:55 am 
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Well absolutely, as I said I tried one of those kit generators and I had to return it. The only way to go is to get proper equipment for audio, now it's a pretty small investment.


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