Author Topic: Frequency Amplifiers  (Read 2220 times)

0 Members and 1 Guest are viewing this topic.

Offline Login to see usernames

  • Hero member
  • ****
  • Posts: 657
Frequency Amplifiers
« on: March 23, 2009, 00:02:24 am »
since we use audio frequencies i am curious as to what types of audio amplifiers people are using for there signal generators?

Offline Login to see usernames

  • Hero member
  • ****
  • Posts: 657
Re: Frequency Amplifiers
« Reply #1 on: March 24, 2009, 18:45:34 pm »
anyone......has no one actually hooked ther function generator up to anything with real power yet??

Offline Login to see usernames

  • Jr. member
  • *
  • Posts: 2
    • Lablanc Engineering
Re: Frequency Amplifiers
« Reply #2 on: April 09, 2009, 03:08:29 am »
I thought I was the only one that thought about using a car amp as a RF amp. We have a full range car amp on order that should prove the benefits of using a cheap car amp to up the voltage coming from the function generator or PWM circuit. The only amp we have in stock right now is a sub amp and the frequency is limited to 200 HZ. But the benefits are great compared to using a MOSFET to do the switching.
Here is the blog athat leads to the print on this subject:
http://blogs.myspace.com/index.cfm?fuseaction=blog.view&friendId=54413454&blogId=478403219

So far the amp allows you to bring up a 5 volt signal from the function gen. right up to 33 volts with high amps that drive the step up transformer directly. It is awesome.
Cheers
Captain Willy
www.myspace.com/captainwilly


Offline Login to see usernames

  • Hero member
  • ****
  • Posts: 657
Re: Frequency Amplifiers
« Reply #3 on: April 09, 2009, 03:46:39 am »
yeah i will eventually go that route......but for now i just use my function generator which has an amplitude of up to 20 volts and a mosfet to provide my power.....it works well.

Offline Login to see usernames

  • 50+
  • *
  • Posts: 68
Re: Frequency Amplifiers
« Reply #4 on: April 09, 2009, 04:56:24 am »
Welcome to the team captain .