Comments on: Davisson’s JFET Vulcan http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/ guitar stompboxes and electronics Fri, 30 Jul 2010 02:16:17 -0700 http://wordpress.org/?v=2.9.2 hourly 1 By: Leo http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-1323 Leo Wed, 07 Apr 2010 19:35:35 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-1323 Hi Gauss. The circuit is excellent, the same the pcb, but has no tone control...What tone stack recommend? Thanx Hi Gauss.
The circuit is excellent, the same the pcb, but has no tone control…What tone stack recommend?
Thanx

]]> By: Flyingz http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-1022 Flyingz Fri, 06 Feb 2009 03:06:17 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-1022 I rebiased, added BMP tone, removed R17, and changed R16 to 100K It has some fun in it but nothing special I rebiased, added BMP tone, removed R17, and changed R16 to 100K
It has some fun in it but nothing special

]]> By: drushton2002 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-962 drushton2002 Sat, 08 Nov 2008 23:28:13 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-962 hey man i can't wait to try this. are there any tweaks or switches to anything like that? different caps for boosts tone changes etc. i love switches LOL. cool site man thanks for having this stuff hey man i can’t wait to try this. are there any tweaks or switches to anything like that? different caps for boosts tone changes etc. i love switches LOL. cool site man thanks for having this stuff

]]> By: culturejam http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-957 culturejam Fri, 31 Oct 2008 18:33:37 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-957 Jim: I built the Vulcan from the PCB layout here, and it sounds much heavier than the sound clip that you posted on your blog. Mine is in Big Muff territory, but not as compressed. I went with 100k resistors, but then I swapped out JFETs till I got some that would bias properly. Jim: I built the Vulcan from the PCB layout here, and it sounds much heavier than the sound clip that you posted on your blog. Mine is in Big Muff territory, but not as compressed.

I went with 100k resistors, but then I swapped out JFETs till I got some that would bias properly.

]]> By: Jim http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-945 Jim Thu, 09 Oct 2008 23:00:34 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-945 That's so weird that it automatically posted a weird link to my blog that I just did about this circuit... Anyways; go here if you wanna check it out. http://bandslink.com/wordpress/?p=33 Love your site man! That’s so weird that it automatically posted a weird link to my blog that I just did about this circuit…
Anyways; go here if you wanna check it out.
http://bandslink.com/wordpress/?p=33

Love your site man!

]]> By: Jim’s Personal Blog » Blog Archive » JFET Vulcan http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-944 Jim’s Personal Blog » Blog Archive » JFET Vulcan Thu, 09 Oct 2008 22:58:20 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-944 [...] I did a breadboard of the ‘JFET Vulcan‘ after reading about it on the Gaussmarkov site. Here lately I’ve been just whipping [...] [...] I did a breadboard of the ‘JFET Vulcan‘ after reading about it on the Gaussmarkov site. Here lately I’ve been just whipping [...]

]]> By: culturejam http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-935 culturejam Tue, 23 Sep 2008 05:03:49 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-935 Verified! It sounds awesome. I forgot to check the 100k resistor values and just soldered everything. The result was good, but a little mis-biased sounding. So then I swapped out JFETs, and the closest I could get to "proper" bias is 4.7v, 4.2v, and 3.9v, respectively. Oh man, it sounds so damn good. Like a hot-rodded Muff crossed with a SLO. Great layout. Thanks! Verified!

It sounds awesome. I forgot to check the 100k resistor values and just soldered everything. The result was good, but a little mis-biased sounding. So then I swapped out JFETs, and the closest I could get to “proper” bias is 4.7v, 4.2v, and 3.9v, respectively. Oh man, it sounds so damn good. Like a hot-rodded Muff crossed with a SLO.

Great layout. Thanks!

]]> By: gaussmarkov http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-909 gaussmarkov Wed, 27 Aug 2008 15:35:53 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-909 nice! nice!

]]> By: bobby http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-908 bobby Wed, 27 Aug 2008 13:35:41 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-908 http://www.instructables.com/id/Render-3D-images-of-your-PCBs-using-Eagle3D-and-PO/ http://www.instructables.com/id/Render-3D-images-of-your-PCBs-using-Eagle3D-and-PO/

]]> By: gaussmarkov http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/comment-page-1/#comment-814 gaussmarkov Thu, 12 Jun 2008 19:11:39 +0000 http://gaussmarkov.net/wordpress/circuits/davissons-jfet-vulcan/#comment-814 POV-Ray and Eagle3D. :cool: POV-Ray and Eagle3D. :cool:

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