Interstate Electronics Log-Linear Sweep Generator - diyAudio
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Old 27th February 2011, 02:28 AM   #1
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Default Interstate Electronics Log-Linear Sweep Generator

Anyone have experience with this Interstate Electronics F77 Log-Linear Sweep Generator? Whether or not you have direct experience, would you see this as a useful standalone piece of equipment to have in the stable for testing purposes?
I cannot find a manual or discussion on it so am curious to know more.
0.001Hz-20MHz, am/fm/sine/tri/sq/pulse

Thanks for your consideration.

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Old 27th February 2011, 07:44 PM   #2
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I've used these at work long ago and think they're excellent, though not too well known. The low frequency capability is unusual; I'm not sure how useful it is for audio purposes. Manuals and schematics can be near impossible to find. If it works and if you can get documentation, I'd say it's a good addition to the bench. They also made a similar and very useful pulse generator with variable rise and fall times.

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Old 27th February 2011, 11:07 PM   #3
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Thanks much for the response. I am trying to find an adequate function generator and have been looking at this F77 as well as the HP 3312A.
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Old 4th March 2011, 05:26 AM   #4
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It looks like a pretty rockin' function generator to me. I like the pulse function. That can come in handy.

The HP 3312A is a nice one too. I use mine frequently. I picked it up on ePay for around $100.

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