Film-Tech Cinema Systems
Film-Tech Forum

Post New Topic  Post A Reply
my profile | my password | register | search | faq & rules | forum home
  next oldest topic   next newest topic
» Film-Tech Forum   » Community   » Film-Yak   » Audio Oscillator

Author Topic: Audio Oscillator
Steve Kraus
Film God

Posts: 4068
From: Chicago, IL, USA
Registered: May 2000

 - posted 05-24-2003 06:23 PM      Profile for Steve Kraus     Send New Private Message       Edit/Delete Post 
Can someone point me to (or display here) a schematic for a simple, adjustable audio oscillator? What I want is one where I can do a frequency sweep. I built a very simple one with a 555 chip, a couple of caps and resistors and pots but I'm not happy with the non sinusoidal output (I added an output cap to smooth it but still). The simpler the better.

 |  IP: Logged

Jon Bartow
Master Film Handler

Posts: 287
From: Massachusetts
Registered: Nov 1999

 - posted 05-24-2003 07:50 PM      Profile for Jon Bartow   Email Jon Bartow   Send New Private Message       Edit/Delete Post

 |  IP: Logged

Gordon McLeod
Film God

Posts: 9473
From: Toronto Ontario Canada
Registered: Jun 99

 - posted 05-25-2003 10:31 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
The best oscillator I have used is the Loftec (now sold by goldline) it has a constant amplitude output a db meter and frequency counter. Also it can used to calculate impedance as well
to build something similar isn't worth the time considering its low cost

 |  IP: Logged

Jean-Michel Grin
Expert Film Handler

Posts: 222
From: Geneva & Lausanne, Switzerland
Registered: Jul 2002

 - posted 05-26-2003 12:23 PM      Profile for Jean-Michel Grin   Author's Homepage   Email Jean-Michel Grin   Send New Private Message       Edit/Delete Post 
For me the best hand-held audio oscillator is made by Neutrik , Minirator MR1
You find here an affordable audio generator:
-Pink noise
-White noise
-Audio sine or square from 20 Hz to 20 kHz
-Polarity test
-Auto sweep (timing adjustable)
-Balanced XLR and unbalanced phono output

Check the following link:

For me this is a great tool; every tech should have one [Smile]


 |  IP: Logged

All times are Central (GMT -6:00)  
Post New Topic  Post A Reply Close Topic    Move Topic    Delete Topic    next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:

Powered by Infopop Corporation

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.

© 1999-2018 Film-Tech Cinema Systems, LLC. All rights reserved.