Active crossover

ivan-UTN-ARG · 2nd December 2007, 03:36 AM

hi,

I'm looking for a simple schematic of a 2 way 12dB/oct active

crossover with 12AU7 or 6CG7

the crosover frecuency should be 2khz (aprox).

planet10 · 2nd December 2007, 04:37 AM

http://t-linespeakers.org/tubes/xos.html

dave

soundbrigade · 2nd December 2007, 09:06 AM

You can download a X-over designer from Elektor Electronics:
Tube-Based Crossover
Gives you a PCB-designer as well.

mashaffer · 3rd December 2007, 12:39 AM

A related question. It has been a looooooooonnnnnnnnnngg time since linear circuit analysis class. Can anyone explain how to derive the transfer function for that 3rd order LP as shown in the above link? Does one have to model the tube or can you somehow derive the voltage division of the ladder network and then layer on the effect of the feedback capacitor?

I would like to understand this circuit well enough to move poles around and also adapt it to sand (sorry I got lots o sand and low voltage power transformers on hand on no tube stuff yet).

mike

2nd December 2007, 03:36 AM	#1
ivan-UTN-ARG diyAudio Member Join Date: Jun 2007	Active crossover hi, I'm looking for a simple schematic of a 2 way 12dB/oct active crossover with 12AU7 or 6CG7 the crosover frecuency should be 2khz (aprox).

2nd December 2007, 04:37 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III	http://t-linespeakers.org/tubes/xos.html dave __________________ community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

2nd December 2007, 09:06 AM	#3
soundbrigade diyAudio Member Join Date: Feb 2006 Location: Vaenersborg, Sweden	You can download a X-over designer from Elektor Electronics: Tube-Based Crossover Gives you a PCB-designer as well. __________________ /Magnus Due to economical cutbacks, the light at the end of the tunnel has to be switched off.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
active crossover: fir vs iir	netchris	Everything Else	3	29th July 2008 09:14 AM
Passive crossover into active crossover	hahfran	Multi-Way	16	10th February 2008 06:16 PM
PA vs DIY active crossover	paulspencer	Multi-Way	46	27th November 2004 01:25 AM
active crossover	aaronboumans	Analogue Source	4	31st May 2003 04:59 PM
XVR1 active crossover, discrete active stage	promitheus	Pass Labs	18	22nd July 2002 01:29 AM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

3rd December 2007, 12:39 AM	#4
mashaffer diyAudio Member Join Date: Jun 2004 Location: Indiana	A related question. It has been a looooooooonnnnnnnnnngg time since linear circuit analysis class. Can anyone explain how to derive the transfer function for that 3rd order LP as shown in the above link? Does one have to model the tube or can you somehow derive the voltage division of the ladder network and then layer on the effect of the feedback capacitor? I would like to understand this circuit well enough to move poles around and also adapt it to sand (sorry I got lots o sand and low voltage power transformers on hand on no tube stuff yet). mike

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read