Search found 45 matches

by mganzer
14 Nov 2013, 15:56
Forum: Boutique Stompboxes dissected...
Topic: Catalinbread - Formula No. 5 [traced]
Replies: 306
Views: 86648

Catalinbread - Formula 5f6 [traced]

Hi Guys; Anyone put the hands in one of that? someone knows what changes from formula n5?(aside from the obvious tone stack changes)?

Cheers
MG
by mganzer
07 Nov 2013, 17:30
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

For shure I will try other amp simulator... Something like srpp. For shure less trouble for good tone...
by mganzer
31 Oct 2013, 22:17
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

Well. Not a great layout. For shure not my best but...
Absolutely NOT VERIFIED!
by mganzer
31 Oct 2013, 15:35
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

just one dpdt doens't do the job on switching boosts?
by mganzer
31 Oct 2013, 13:22
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

Now the complete schematic redraw:
Let me know about any error and i work in a board layout
by mganzer
31 Oct 2013, 13:16
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

sorry guys; this is the correct v1.1 of fuzz section... :oops:
by mganzer
31 Oct 2013, 03:07
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

The two fuzz modes drive the jfet marshall simulator
by mganzer
31 Oct 2013, 00:37
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

The another part (is a jfet marshall 'simulator') is exactly a wampler plexi drive with diferent labels... i will post when finish the draw.
by mganzer
30 Oct 2013, 23:14
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

At a glance, the only thing(s) I see missing are the 1k input resistors into each channel. You right sir. The 1k 'cutting the radio' resistors. I'm thinking: the 11p06 is really necessary? what they do in pratice? If i use the catalinbread wiio as amp section it work ok? is not too marshall'ish and...
by mganzer
30 Oct 2013, 21:14
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

Hi guys;
Thats correct?
by mganzer
23 Oct 2013, 20:47
Forum: Ready-To-Build Effect Projects
Topic: Baja Triode Emulator Boost Plus
Replies: 46
Views: 11063

Re: Baja Triode Emulator Boost Plus

Hi guys; What is the voltage of v+, 1/2V and vbias? I want to manage power without charger pump... (maybe using a diodes/caps arrange to double the voltage and put some extra filtering) If i want to cut off the buffer out, the 2u2 cap, 100k and 560r are useless, right? How much drive it can generate...
by mganzer
23 Oct 2013, 15:23
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

getting a final working schematic (with a solution h11f3less) i do a 1590b board layout.
by mganzer
22 Oct 2013, 00:46
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

Guys, i think is time to move to dissected boutique stompboxes section.
michaelballard, please open the thread, repost the photos and take the credit. This section do not have many people looking for. In dissected section this will have more visibility imho.
by mganzer
21 Oct 2013, 17:23
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

Not hundred percent matched, but maybe usefull...
by mganzer
20 Oct 2013, 17:04
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

It also looks like he's captured the whole world's supply of H11F3 opto-FETs. I used to use these for muting, routing, and as the gain control element in compressors and limiters! They used to be available from Rapid, Farnell and everywhere else, but all my regular suppliers discontinued them some ...
by mganzer
18 Oct 2013, 22:45
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

Wow! great! you can desolder the potentiometers and take pictures of both pcb sides in parallell plan (the whole board in one picture to be more clear)? This can help in tracking circuit to make a schematic. Potentiometer are a easy component to put back later. After tracking, the values of componen...
by mganzer
12 Oct 2013, 00:55
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

I don't think so. The white ones seems to be sop6 so they not are j201. They are jfet optocouplers.
But: for example 4n25 and similar also been fabricated in white sop6 encapsulation and are bjt optocouplers.
by mganzer
11 Oct 2013, 18:55
Forum: Boutique Stompboxes dissected...
Topic: Wampler Velvet Fuzz [traced]
Replies: 174
Views: 65737

Re: Wampler Velvet Fuzz [traced]

The black one is maybe a charge pump. If the white ones are h11fX, we talking about a fet based circuit. 4 fet circuit with led side control?
by mganzer
04 Oct 2013, 21:36
Forum: Ready-To-Build Effect Projects
Topic: Distortion Effects Philosophy and Design
Replies: 41
Views: 2305

Re: Distortion Effects Philosophy and Design

Mictester. Please continue?