Search found 121 matches

by mrkaploca
04 Nov 2013, 20:41
Forum: DIY Projects
Topic: Shin-ei/Univox Uni-Vibe [Replica Files]
Replies: 504
Views: 155547

Re: [Replica Files] Shin-ei/Univox Uni-Vibe

But this way LEDs intensity is dependant on overral Intensity settings, right?
Wiring it my way gives excellent response, right intensity (that can bi modified according to LED used) and does not depend on bulb intensity settings.
by mrkaploca
03 Nov 2013, 20:47
Forum: DIY Projects
Topic: Shin-ei/Univox Uni-Vibe [Replica Files]
Replies: 504
Views: 155547

Re: [Replica Files] Shin-ei/Univox Uni-Vibe

sorry, wrong link (and I cant edit last post :hmmm: )
Image
by mrkaploca
03 Nov 2013, 20:43
Forum: DIY Projects
Topic: Shin-ei/Univox Uni-Vibe [Replica Files]
Replies: 504
Views: 155547

Re: [Replica Files] Shin-ei/Univox Uni-Vibe

Sorry for blasphemy, but what's the best way to add LED rate indicator? I've seen that madbean was taking voltage from R44 to ground. Some folks suggest to pul LED in series with bulb. Don't think it's a good idea. I'm planning to use CANCEL as bypass, so it'd be good if both work together properly...
by mrkaploca
19 Sep 2013, 16:43
Forum: Boutique Stompboxes dissected...
Topic: Effectrode - Tube Vibe
Replies: 116
Views: 35853

Re: Tube-Vibe

Did u guys manage to trace bulb driver circuitry? Probably PWM driving transistor? :hmmm:
by mrkaploca
02 Sep 2013, 00:26
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Leviathan Fuzz
Replies: 5
Views: 3931

Re: Wampler Leviathan Fuzz

I bet it's opamp based... :D
by mrkaploca
14 Apr 2013, 22:10
Forum: Boutique Stompboxes dissected...
Topic: Jack DeVille Deuce Coupe [traced]
Replies: 21
Views: 9536

Re: Jack DeVille Deuce Coupe [traced]

Ah yea, forgot to change the naming when cleaning it up. I think the diodes are a screw up from copying my hand notes, but I threw them away after redrawing so I dunno if I got them right initially or not. Thanks for the corrections. :thumbsup New schem is attached. So are cathodes or anodes connec...
by mrkaploca
25 Mar 2013, 17:25
Forum: Boutique Stompboxes dissected...
Topic: Jack DeVille Deuce Coupe [traced]
Replies: 21
Views: 9536

Re: Jack DeVille Deuce Coupe [traced]

What about mosfet body diode? This kind of configuration starts clipping signal above 0.4V. I suppose it could go with this particular circuit (as this is a clipping circuit) but if it's a part of Deville clickless system, i don't thing it would be a wise thing to use mosfet as a switch...
by mrkaploca
25 Mar 2013, 12:36
Forum: Boutique Stompboxes dissected...
Topic: Jack DeVille Deuce Coupe [traced]
Replies: 21
Views: 9536

Re: Jack DeVille Deuce Coupe [traced]

What does Q3 serve for? Muting?
by mrkaploca
16 Mar 2013, 12:39
Forum: Boutique Stompboxes dissected...
Topic: Wampler - SLOstortion [traced]
Replies: 180
Views: 65760

Re: Wampler SLOstortion [traced]

lukatosh wrote: in some forums the info is available only for users who have for example a certain number of post...

in order to protect our work, and make this thing really "only for personal pourpose" the moderators here could maybe implement something like that...
:thumbsup :thumbsup
by mrkaploca
04 Mar 2013, 16:58
Forum: Boutique Stompboxes dissected...
Topic: Catalinbread - Echorec
Replies: 57
Views: 10919

Re: Catalinbread Echorec - Pic and schematic

Not familiar with fv-1 code but isn't it protected? Programs are loaded to the FV-1 via an external Eeprom, so to develop your own effects all you need is the datasheet and language from the Spin site. There is lots of info there to learn the coding. As for the code in the echorec I have no intenti...
by mrkaploca
03 Mar 2013, 19:32
Forum: Boutique Stompboxes dissected...
Topic: Catalinbread - Echorec
Replies: 57
Views: 10919

Re: Catalinbread Echorec - Pic and schematic

Not familiar with fv-1 code but isn't it protected?
by mrkaploca
21 Feb 2013, 16:49
Forum: Boutique Stompboxes dissected...
Topic: Wampler - SLOstortion [traced]
Replies: 180
Views: 65760

Re: Wampler SLOstortion [traced]

R u sure for R20 value? One schematics says 22K, the other is 470K... :scratch:
by mrkaploca
13 Jan 2013, 12:22
Forum: Boutique Stompboxes dissected...
Topic: Cusack - Tap A Delay (gutshots)
Replies: 18
Views: 5017

Re: Cusack Tap A Delay Gutshots

I have some basic setup on my protoboard. Will try in the afternoon if this "holds the water"!!
If I get some results will let you know guys!! :thumbsup
by mrkaploca
09 Jan 2013, 16:10
Forum: Boutique Stompboxes dissected...
Topic: Cusack - Tap A Delay (gutshots)
Replies: 18
Views: 5017

Re: Cusack Tap A Delay Gutshots

Easy in theory, but nobody has figured it out enough to copy as far as I know. Nice to know it's worthy of dissection... Jon Cusack :idea: Ok, I think I have it figured out. You use a PWM output pin on the PIC with a schottky (two in parallel actually) cathode connected to it via a 4k7 resistor. Th...
by mrkaploca
31 Dec 2012, 15:28
Forum: Boutique Stompboxes dissected...
Topic: Mr. Black Supermoon [DSP chip]
Replies: 19
Views: 6379

Re: Mr. Black Supermoon [DSP chip]

This stuff is based around FV-1 chip I suppose, as all the other Mr. Black stuff (along with CB Echorec)... :wink:
by mrkaploca
23 Dec 2012, 16:11
Forum: Boutique Stompboxes dissected...
Topic: Wampler - SLOstortion [traced]
Replies: 180
Views: 65760

Re: Wampler SLOstortion [traced]

excellent! and now the bottom side PCB pics... ;)
by mrkaploca
21 Dec 2012, 18:32
Forum: Boutique Stompboxes dissected...
Topic: Wampler - Sovereign Distortion [traced]
Replies: 36
Views: 30614

Re: Wampler Sovereign Distortion [traced]

jymaze wrote: Maybe mu-amps then...
Most certainly, judging by the amount of gain available...
by mrkaploca
28 Nov 2012, 18:41
Forum: Boutique Stompboxes dissected...
Topic: Cusack - Tap A Delay (gutshots)
Replies: 18
Views: 5017

Re: Cusack Tap A Delay Gutshots

I suppose the uC code is locked... :lol: :lol: