freestompboxes.org http://www.freestompboxes.org/index.php en (c) Copyright 2007 by freestompboxes.org messenger@freestompboxes.org phpBB3 RSS2 Syndication Mod by Manchumahara(Sabuj Kundu) 1 Wampler - Tweed '57 http://www.freestompboxes.org/viewtopic.php?f=7&t=17919#p265829 <br /> by POTL (Posted 8 minutes ago)<br/><br /> Hey Tell me what is the advantage of this combination of transistors (Q2 + Q3 & Q4 + Q5) over single transistors or Mu Amp<br />Do I need to match the transistors<br />If this is what value<br />The new version is capable of operating from 9-18 volts<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=17919">Read the main topic related to this post</a><hr /> 8 minutes ago http://www.freestompboxes.org/viewtopic.php?f=7&t=17919#p265829 Ramble FX - Marvel Drive 1.0 http://www.freestompboxes.org/viewtopic.php?f=7&t=24744#p265827 <br /> by POTL (Posted Yesterday, 23:30)<br/><br /> Tell me about the fets matching<br />On what parameter to look, what data should be?<br />How can I select transistors for the mu-amp cascade?<br /><br />I'm interested in switching from 9 to 18 volts<br />On my layout, the transistors work either 9 or 18 volts<br />Put those that were.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=24744">Read the main topic related to this post</a><hr /> Yesterday, 23:30 http://www.freestompboxes.org/viewtopic.php?f=7&t=24744#p265827 MMR fuzz http://www.freestompboxes.org/viewtopic.php?f=28&t=28308#p265824 <br /> by Timpanogos Slim (Posted Yesterday, 18:37)<br/><br /> Alright. Just wondering if my expectations are correct. I'll go over the schematic and board to look for mistakes at some point. <br /><br />If anyone does have a recording, I'd appreciate hearing it.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=28&t=28308">Read the main topic related to this post</a><hr /> Yesterday, 18:37 http://www.freestompboxes.org/viewtopic.php?f=28&t=28308#p265824 Friedman BE-OD Pedal http://www.freestompboxes.org/viewtopic.php?f=7&t=27775#p265822 <br /> by Jan1966 (Posted Yesterday, 17:49)<br/><br /> Bit confused<br />This is a great pedal for sure. I have built it and it from Buggs pcb and it works perfectly. I have bought the original pedal and it is great. However the high gain distortion can be achieved with with simpler circuits. <br />For instance Dead Astronauts spitfire with the schematic readily available. I have built this and it sounds awesome.<br /><!-- m --><a class="postlink" href="https://www.youtube.com/watch?v=iQ1y8gikPqQ">https://www.youtube.com/watch?v=iQ1y8gikPqQ</a><!-- m --><br />Just my thoughts on this.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=27775">Read the main topic related to this post</a><hr /> Yesterday, 17:49 http://www.freestompboxes.org/viewtopic.php?f=7&t=27775#p265822 Fulltone - OCD http://www.freestompboxes.org/viewtopic.php?f=7&t=527#p265820 <br /> by bugg (Posted Yesterday, 17:26)<br/><br /> I traced the new V2 version this weekend. Will post the schematic once it's cleaned up and verified. <img src="./images/smilies/icon_mrgreen.gif" alt=":mrgreen:" title="Mr. Green" /><br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=527">Read the main topic related to this post</a><hr /> Yesterday, 17:26 http://www.freestompboxes.org/viewtopic.php?f=7&t=527#p265820 EF86 AC4 inspired amplifier http://www.freestompboxes.org/viewtopic.php?f=2&t=28556#p265819 <br /> by Thomas_H (Posted Yesterday, 16:28)<br/><br /> Hi,<br />I finished a small amp based on the AC4 build here> <a href="http://www.dougcircuits.com/neon.html" class="postlink">http://www.dougcircuits.com/neon.html</a><br />Just used one half of the 12ax7 as another preamp stage.<br /><img src="http://i.imgur.com/3clwYDSl.png" alt="Image" /><br /><br />The preamp stages are switched by the jacks, giving the four different configurations. Not an AC4 anymore, but still with the character of the EF86.<br />The cab came from an old transistor amp, I added the 10" speaker, the grill cloth and a new faceplate.<br /><img src="http://i.imgur.com/d6D10C3l.jpg" alt="Image" /><br /><img src="http://i.imgur.com/aWJM0vll.jpg" alt="Image" /><br /><img src="http://i.imgur.com/K7t4B7pl.jpg" alt="Image" /><br /><img src="http://i.imgur.com/udasCBJl.jpg" alt="Image" /><br /><img src="http://i.imgur.com/UyJZtz9l.jpg" alt="Image" /><br /><br />cheers,<br />Thomas<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=2&t=28556">Read the main topic related to this post</a><hr /> Yesterday, 16:28 http://www.freestompboxes.org/viewtopic.php?f=2&t=28556#p265819 Black Arts Toneworks - Boneshaker http://www.freestompboxes.org/viewtopic.php?f=7&t=28258#p265809 <br /> by audiohub (Posted Yesterday, 03:34)<br/><br /> Thanks for posting the schematics for this!<br />I just got one a few days ago...they were having a "special promotion" and selling these for $40 shipped, so I took a chance and ordered one to see if it would be useful.<br /><br />I've also noticed that the frequency controls have almost no noticeable effect until they're turned past the 12:00-1:00 position, and was wondering why. <br />My best guess is that the pot taper might have something to do with it...the frequency pot is an audio taper (the level is a linear taper) and this may have been more effective as a linear or maybe a reverse taper audio pot. <br />The sweep ranges for each band are somewhat narrow, and none of the bands overlap in frequency which would have been nice for a more intense boost or closely spaced notches or peaks.<br />As it is, it seems like the effect is wasted until you get past this point on the rotation. It might have been an inventory mistake on behalf of DOD, as pots like these are almost always a custom order with a <br />large minimum purchase.<br /><br />The distortion control also has a similar slow onset in it's taper, although I'm not exactly sure why. The Depth control cuts the lowest frequencies pre-distortion, and its operation is pretty much invisible for standard guitar, but is supposedly nice for down-tuned instruments and bass.<br /><br />The distortion effect is pretty *meh*, and maybe substituting some different "magic" diodes or LEDs in this position might spice it up a bit.<br /><br />For $40 it's a nicely made pedal that can probably be finnessed to suit my needs, thanks to your work in publishing this schematic, which cleared up a lot of questions for me!<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=28258">Read the main topic related to this post</a><hr /> Yesterday, 03:34 http://www.freestompboxes.org/viewtopic.php?f=7&t=28258#p265809 The great "I'd like to see the guts of" thread http://www.freestompboxes.org/viewtopic.php?f=1&t=2072#p265806 <br /> by bc108 (Posted Yesterday, 01:50)<br/><br /> <blockquote><div><cite>cornocopius wrote:</cite>Dod Carcosa?<br />I'm very interested. Anyone else?</div></blockquote><br /><br />I am!<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=2072">Read the main topic related to this post</a><hr /> Yesterday, 01:50 http://www.freestompboxes.org/viewtopic.php?f=1&t=2072#p265806 McCrypt AT2 Distortion (Krank Maximus style clone) Schematic http://www.freestompboxes.org/viewtopic.php?f=11&t=28538#p265800 <br /> by bool (Posted 19 Aug 2017, 17:13)<br/><br /> You can testdrive how the freq. change suits the pedal by simply (temporary) changing the 10k res. in the stack to 1k (parallel something to it f.e. a 1.1k resistor)<br /><br />The eq curve wont be ideal, but massaging the eq usually takes time.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=11&t=28538">Read the main topic related to this post</a><hr /> 19 Aug 2017, 17:13 http://www.freestompboxes.org/viewtopic.php?f=11&t=28538#p265800 Digitech JamSync - How does it work? http://www.freestompboxes.org/viewtopic.php?f=1&t=26184#p265799 <br /> by Nikogo (Posted 19 Aug 2017, 15:16)<br/><br /> An update for installation of Arduino Nano in BeatBuddy for synchronising with JamMan Solo XT.<br />The Nano is connected inside BB with 4 wires (30 AWG) and need only 2 headers (2 pins each) soldered into last holes of each row on Nano board (GND, VIN and Rx0, Tx1). The shield boars is a piece of a breadboard 18x8 mm with 2 female headers and a single 220 Ohm resistor. The GND is connected to the ground tab (-9VDC) and VIN - to +9VDC tab where the BB power connector is connected to its board.<br />The Rx0 Nano input is connected to the MIDI output pin on MIDI connector. If looking on left external side of BB it is the right pin in top row. The MIDI connector's bottom left pin is MIDI ground, bottom right - not connected, the middle row pins are MIDI input, the top left is +5V thru 220 Ohm resistor of MIDI output. <br />The Tx1 Nano output thru the 220 Ohm resistor (on shield board) should be connected to the MIDI connector's bottom right pin. <br />I made the synchro BB-JM cable from a headphone cable with 3.5 mm stereo jack plug and the old PC mouse connector. It connects the BB MIDI top left (+5V) pin to the ring and the bottom right BB MIDI pin (Tx1) to the tip of 3.5 plug.<br />Such connection allows to use the BB MIDI connector for MIDI purposes without restrictions. The BB MIDI output that I connected to Rx0 has a buffer on OpAmp follower and can easily drive two parallel ports, so the Rx0 Nano input does not affect its functionality. Between the OpAmp and the MIDI pin there is a 220 Ohm resistor. The Nano input could be taken before or after that resistor.<br />I wrapped Nano with Kapton tape for insulation.<br />And it works.<br />Thank you all<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=26184">Read the main topic related to this post</a><hr /> 19 Aug 2017, 15:16 http://www.freestompboxes.org/viewtopic.php?f=1&t=26184#p265799 Seymour duncan Powerstage http://www.freestompboxes.org/viewtopic.php?f=2&t=28523#p265798 <br /> by marshmellow (Posted 19 Aug 2017, 14:47)<br/><br /> The SD Powerstage runs directly off the mains though, so fully integrated.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=2&t=28523">Read the main topic related to this post</a><hr /> 19 Aug 2017, 14:47 http://www.freestompboxes.org/viewtopic.php?f=2&t=28523#p265798 Tech21 - Character Series. http://www.freestompboxes.org/viewtopic.php?f=1&t=6571#p265792 <br /> by AuditoryDriving (Posted 19 Aug 2017, 06:48)<br/><br /> Too bad no one seems to have the values for the Leeds and California pedals, it would be very interesting and educational.<br /><br />i ll never get tired of saying those pedals are brilliant ( i have the blonde and the liverpool)!<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=6571">Read the main topic related to this post</a><hr /> 19 Aug 2017, 06:48 http://www.freestompboxes.org/viewtopic.php?f=1&t=6571#p265792 Which Distortion pedal for Vox Top Boost? http://www.freestompboxes.org/viewtopic.php?f=1&t=28553#p265783 <br /> by alexradium (Posted 18 Aug 2017, 12:26)<br/><br /> Riot<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=28553">Read the main topic related to this post</a><hr /> 18 Aug 2017, 12:26 http://www.freestompboxes.org/viewtopic.php?f=1&t=28553#p265783 Black Box Buffer http://www.freestompboxes.org/viewtopic.php?f=1&t=27131#p265780 <br /> by Manfred (Posted 17 Aug 2017, 23:46)<br/><br /> I made a board clone according the PCB shot and the schematic drawn by Bernardduur.<br /><br /><div class="inline-attachment"><!-- ia3 -->BlackBoxBufferLayout.JPG<!-- ia3 --></div><br /><br /><div class="inline-attachment"><!-- ia2 -->BlackBoxBufferComponents.pdf<!-- ia2 --></div><br /><br /><div class="inline-attachment"><!-- ia1 -->BlackBoxBufferPCB.pdf<!-- ia1 --></div><br /><br /><div class="inline-attachment"><!-- ia0 -->BlackBoxBufferPCBmirrored.pdf<!-- ia0 --></div><br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=27131">Read the main topic related to this post</a><hr /> 17 Aug 2017, 23:46 http://www.freestompboxes.org/viewtopic.php?f=1&t=27131#p265780 Catalinbread - Sabbra Cadabra http://www.freestompboxes.org/viewtopic.php?f=7&t=25043#p265776 <br /> by 66archer (Posted 17 Aug 2017, 20:54)<br/><br /> Thanks!<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=25043">Read the main topic related to this post</a><hr /> 17 Aug 2017, 20:54 http://www.freestompboxes.org/viewtopic.php?f=7&t=25043#p265776 Throbak Overdrive Boost Schematic http://www.freestompboxes.org/viewtopic.php?f=7&t=22004#p265774 <br /> by bc108 (Posted 17 Aug 2017, 16:13)<br/><br /> Anyone have the pcb layout, eagle files, etc. for this one?<br /> <img src="./images/smilies/icon_thumright.gif" alt=":thumbsup" title="thumbs up" /><br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=22004">Read the main topic related to this post</a><hr /> 17 Aug 2017, 16:13 http://www.freestompboxes.org/viewtopic.php?f=7&t=22004#p265774 Emma - Reezafratzitz [ goop-alarm ] http://www.freestompboxes.org/viewtopic.php?f=7&t=670#p265773 <br /> by bc108 (Posted 17 Aug 2017, 15:53)<br/><br /> <blockquote><div><cite>miwanone wrote:</cite>Nice build!<br /><br />I attached my eagle files, for anyone interested. Not the best pcb I've done, but it works.</div></blockquote><br /><br /><img src="http://www.reactiongifs.com/r/crwdc.gif" alt="Image" /><br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=670">Read the main topic related to this post</a><hr /> 17 Aug 2017, 15:53 http://www.freestompboxes.org/viewtopic.php?f=7&t=670#p265773 Bob Мoog foundation schematics http://www.freestompboxes.org/viewtopic.php?f=70&t=28549#p265771 <br /> by karul (Posted 17 Aug 2017, 11:03)<br/><br /> <!-- m --><a class="postlink" href="http://moogfoundation.org/bob-moog-schematics-release-1-for-our-8th-anniversary/">http://moogfoundation.org/bob-moog-sche ... niversary/</a><!-- m --><br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=70&t=28549">Read the main topic related to this post</a><hr /> 17 Aug 2017, 11:03 http://www.freestompboxes.org/viewtopic.php?f=70&t=28549#p265771 E-WAVE Giant Distortion Schematic http://www.freestompboxes.org/viewtopic.php?f=1&t=28511#p265768 <br /> by dv8r601 (Posted 17 Aug 2017, 00:03)<br/><br /> @roseblood11: It didn't make a whole Hell of alotta difference in the sound without them. I'm wondering if there is some EE type reason for that or if I did something wrong. I used Miro's layout above as soon as he put it up.<br />And Manfred thanks for all this data. I really appreciate the time and effort. I know its a labour of love, but I would like to thank you none the less. Its people like you that make this such an amazing community. I've learned more here than the entire internet as far as electrical circuitry and the mechanical parts we use is concerned.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=28511">Read the main topic related to this post</a><hr /> 17 Aug 2017, 00:03 http://www.freestompboxes.org/viewtopic.php?f=1&t=28511#p265768 Arion SAD-1 - voltage to MN3102 and MN3205 http://www.freestompboxes.org/viewtopic.php?f=1&t=28547#p265762 <br /> by Yazoo55 (Posted 16 Aug 2017, 16:06)<br/><br /> I just decided to go ahead and modify the power supply to the MN3205 chip. I added a BAT41 diode in series with the 2 1n4148 diodes to drop the VDD voltage to pin 1 of the MN3102 to 7.5 volts and lifted the pin 5 leg of the MN3205 so that I could solder a jumper lead from pin 1 on the MN3102 to give it the same 7.5 volts. It is a definite improvement. I can now set the trimpot to control the Repeats pot.<br /><br />My one gripe is that there is still some distortion. I should mention I am using the V3205 Coolaudio clone of the MN3205. <br /><br />The schematic is here:<a href="http://experimentalistsanonymous.com/diy/Schematics/Delay%20Echo%20and%20Samplers/Arion%20SAD-1.gif" class="postlink">http://experimentalistsanonymous.com/diy/Schematics/Delay%20Echo%20and%20Samplers/Arion%20SAD-1.gif</a><br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=1&t=28547">Read the main topic related to this post</a><hr /> 16 Aug 2017, 16:06 http://www.freestompboxes.org/viewtopic.php?f=1&t=28547#p265762 Boutique Jordan Bosstone: KFA Fuzzly Bear http://www.freestompboxes.org/viewtopic.php?f=7&t=28120#p265760 <br /> by bc108 (Posted 16 Aug 2017, 15:51)<br/><br /> <blockquote><div><cite>EmmG wrote:</cite>Less compression and more volume. Someone used my layout but with switchable LED's. EHX has a Bosstone clone without any clipping diodes at all.</div></blockquote><br /><br />You're right... I don't reminded the parallel/series diodes properties.<br /><br />I used on-off-on switch with 1n4148 in one side, red leds on another, and nothing in the middle.<br />That way I have the 3 options.<br /><br /><br /> <a href="http://www.freestompboxes.org/viewtopic.php?f=7&t=28120">Read the main topic related to this post</a><hr /> 16 Aug 2017, 15:51 http://www.freestompboxes.org/viewtopic.php?f=7&t=28120#p265760