Tube Effects

guitargully · 7th March 2004, 01:55 PM

Hey everyone,
Yesterday I got a tube distortion box from my friend to borrow for a while, well.. it wasnt working and i told him i'd fix it.. so i took it home, found a few loose wires.. etc. and fixed it. I really like the sound of it- it has a nice warm distortion sound with alot of tone, somthing i cant get with the SS effects in my Crate head. Anyone know of some designs i could use to make one? I'd like to use an off-the-shelf transformer.. and no chips.. there's an easy looking design on www.generalguitargadgets.com , but it uses a JRC4558 chip.. i have the feeling that does more work than the tube. The one on that sight uses a regular old 12V transformer.. so it would be nice if i could use somthing similar. Thanks.

Centauri · 8th March 2004, 11:19 AM

I assume you are referring to the "tube driver" project. This is nearly identical to the Dean Markley "Overlord" pedal, and this sounds very good. The op-amp is only used as a convenient way of increasing the signal level to the tube - the tube does all the overdrive work. It would be possible to replace the chip with another 12AX7, however it becomes more difficult to fit it in a small space.

Cheers

7th March 2004, 01:55 PM	#1
guitargully diyAudio Member Join Date: Nov 2003 Location: Detriot, MI	Tube Effects Hey everyone, Yesterday I got a tube distortion box from my friend to borrow for a while, well.. it wasnt working and i told him i'd fix it.. so i took it home, found a few loose wires.. etc. and fixed it. I really like the sound of it- it has a nice warm distortion sound with alot of tone, somthing i cant get with the SS effects in my Crate head. Anyone know of some designs i could use to make one? I'd like to use an off-the-shelf transformer.. and no chips.. there's an easy looking design on www.generalguitargadgets.com , but it uses a JRC4558 chip.. i have the feeling that does more work than the tube. The one on that sight uses a regular old 12V transformer.. so it would be nice if i could use somthing similar. Thanks. __________________ say what? .. be careful with your ears.

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
Battery powered tube preamps/effects (guitar)	pbholmen	Tubes / Valves	11	11th August 2009 06:56 PM
Tube effects Loop Schematics... ?	psychodave	Tubes / Valves	0	23rd February 2005 06:40 AM
Prob with DOD FX-7 Effects	mpm32	Instruments and Amps	3	23rd November 2004 12:01 PM
Effects Pedals	Petrix	Instruments and Amps	9	13th November 2004 07:22 AM
light effects	roddeasis	Everything Else	4	5th June 2004 02:05 AM

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


	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

8th March 2004, 11:19 AM	#2
Centauri diyAudio Member Join Date: Jul 2003 Location: Newcastle, Australia	I assume you are referring to the "tube driver" project. This is nearly identical to the Dean Markley "Overlord" pedal, and this sounds very good. The op-amp is only used as a convenient way of increasing the signal level to the tube - the tube does all the overdrive work. It would be possible to replace the chip with another 12AX7, however it becomes more difficult to fit it in a small space. Cheers

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)