Mimicking tube behavior with solid state devices

This is the place for any magazine-related discussions that don't fit in any of the column discussion boards below.
Post Reply
bruinbear714
Posts: 26
Joined: Thu Apr 17, 2003 1:01 am
Contact:

Mimicking tube behavior with solid state devices

Post by bruinbear714 » Fri Jun 27, 2003 9:02 am

Just wondering if there are any links out there that deals with solid state circuits to simulate a vacuum tube.

bodgy
Posts: 1044
Joined: Tue Dec 04, 2001 1:01 am
Location: Australia
Contact:

Re: Mimicking tube behavior with solid state devices

Post by bodgy » Fri Jun 27, 2003 6:04 pm

Many power amplifier and communication receiver front ends circuits will feature dual gate MOSFETS which operate very similar to Valves. Though a little jiggery pokery has to be done (read extra transistors) to emulate double Pentodes and similar combinations. <p>If you want RF circuits, then the RSGB book from the UK is still heavily into solid state 'valve type' circuits. If you are in the US then your ARRL book also has some. You could also look at AF amps that are hybrid circuits that use common cathode driven triodes with MOSFETS .<p>Colin<p>[ June 27, 2003: Message edited by: bodgy ]<p>[ June 27, 2003: Message edited by: bodgy ]</p>
On a clear disk you can seek forever.

Chris Foley
Posts: 146
Joined: Mon Jan 13, 2003 1:01 am
Location: Chicago IL
Contact:

Re: Mimicking tube behavior with solid state devices

Post by Chris Foley » Fri Jun 27, 2003 6:07 pm

Can you be more specific about what you want to do?

greg123
Posts: 361
Joined: Sat Sep 07, 2002 1:01 am
Location: St. John's NFLD Canada
Contact:

Re: Mimicking tube behavior with solid state devices

Post by greg123 » Sat Jun 28, 2003 5:18 pm

Check out some of Peavey Electronics guitar amp schmatics. They bulid a "Trans-Tube" series of tube-emulated amplifiers. <p>Peavey will provide these schmatics to you.<p>greg

bruinbear714
Posts: 26
Joined: Thu Apr 17, 2003 1:01 am
Contact:

Re: Mimicking tube behavior with solid state devices

Post by bruinbear714 » Sun Jun 29, 2003 12:50 am

Specifically, I would like to build an audio amplifier using only solid state devices that works as close as a tube amp as possible... The reason I don't want to just build a tube amp is because I am going to design one for car use and would prefer not to step 12.5V up to 150V or more.<p>Greg, I'll look into those Peavey amps to see how they work.<p>Thanks.

bruinbear714
Posts: 26
Joined: Thu Apr 17, 2003 1:01 am
Contact:

Re: Mimicking tube behavior with solid state devices

Post by bruinbear714 » Thu Jul 03, 2003 9:20 am

Any more info available?

Post Reply

Who is online

Users browsing this forum: CeaSaR and 23 guests