tag:blogger.com,1999:blog-1717424041192245308.post7601505221779769323..comments2023-12-31T13:01:17.279+01:00Comments on Inaptly Crafted: Minimoog ReplicaRalph Sommererhttp://www.blogger.com/profile/11324180682096167302noreply@blogger.comBlogger112125tag:blogger.com,1999:blog-1717424041192245308.post-2804112439085448822023-12-31T13:01:17.279+01:002023-12-31T13:01:17.279+01:00Hello dear friend, how are you? Im trying to repli...Hello dear friend, how are you? Im trying to replicate the Model D at well, and Im doing this with protoboards! The rectifier and Power Supply went OK:-) as well as pink, white and red noise, so I was optimistic about my next challenge: the oscillator...so, I built them, but I couldnt "see" any wave at the oscilloscope, (most important the 0V~-4V wave at the collector of Q9, 2N4058...).., so, my question is: how I could test the oscillator properly? I put the -10V, +10V and the -5V power lines, and the -4V as well, but there was nothing. I have to put some signal at the summing lines inputs as well (4A, 5A, 6A, 7A, 8A, 14A )? I have to build the oscillator buffer board and the resistors/ switches, only for the purpose of testing the oscillator? Please, if you have some schematic that I could test the oscillators, one by one, I will be forever greateful!!! I spent so much at components at Mouser, Im stucked at this point, and here in Brazil we pay a lot of taxes as well...happy New Year! :-) Daniel...Seekerhttps://www.blogger.com/profile/08519224755364567360noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-79839446816532563932023-11-26T21:42:56.200+01:002023-11-26T21:42:56.200+01:00When mimimoogvis buolt you neef to play replicad b...When mimimoogvis buolt you neef to play replicad by tubeway armyAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-59718709324764121702022-08-24T10:04:23.363+02:002022-08-24T10:04:23.363+02:00For new products check out this website Enrgtech e...For new products check out this website <a href="http://maps.google.com.qa/url?q=https://www.enrgtech.co.uk/" rel="nofollow">Enrgtech electronics uk</a>Electronic Componentshttps://www.blogger.com/profile/14577615044770684258noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-29582158453230768102022-05-06T11:53:20.608+02:002022-05-06T11:53:20.608+02:00Hello,
good morning
I am French,
Since my teenage ...Hello,<br />good morning<br />I am French,<br />Since my teenage years I have loved the MiniMoog with the DEVOs.<br />Today I'm making one...<br />I made the PCBs a cardboard facade.<br />but i'm stuck on 3 problems<br />so i have a few questions<br />how do you do for the connectors and fixings of the PCB?<br />do you have the cabinet plans?<br />have you kept the plans of the metal box?<br />there is still a lot of work to do...<br />regards<br />AlexisAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-42796363743787707642021-12-12T14:50:11.041+01:002021-12-12T14:50:11.041+01:00I saw your YouTube build video and have been inspi...I saw your YouTube build video and have been inspired to build one of these as well. Boards are on their way and the first batch of components have been ordered.<br />Can you share your MIDI controller design or the resources you used to design it?GPOhttps://www.blogger.com/profile/01707394979727569841noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-88075065951565091532021-09-15T01:22:45.183+02:002021-09-15T01:22:45.183+02:00Here is a document showing all of the oscillator b...Here is a document showing all of the oscillator board corrections. There are a total of 5 corrections to be made: 2 trace cuts, and 3 bridges. My board has these and works perfectly now!<br /><br />https://drive.google.com/file/d/16hPkqwMRf6s4ZSvRaEkiS9aFQvu0ZWti/view?usp=sharing<br /><br />-Ryanrboggs10https://www.blogger.com/profile/12740265868916162188noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-45088505441981693172021-09-14T15:16:02.451+02:002021-09-14T15:16:02.451+02:00I will see what I can do with that after work toda...I will see what I can do with that after work today!rboggs10https://www.blogger.com/profile/12740265868916162188noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-4090252503033070712021-09-14T10:25:53.721+02:002021-09-14T10:25:53.721+02:00HI Ryan , Have ordered PCB for osc. from jlcpcb.
I...HI Ryan , Have ordered PCB for osc. from jlcpcb.<br />I noticed your post:<br /><br />Just today I worked out all of the bugs in the oscillator board. I used the gerbers provided on this blog, and will probably post a list of all the problems with the oscillator board gerber here at some point once I get the chance (just a single trace cut and a few solder bridges).<br />Can you post details , it would be a great help.<br />Best regards.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-15363204729457102632021-09-08T04:51:32.783+02:002021-09-08T04:51:32.783+02:00Hi , i have just ordered the complete set of PCB&#...Hi , i have just ordered the complete set of PCB's and would be keen to know more detail of the 3 problems with the osc board and the 1 with the filter board.<br />I hope you can assist.<br />Best regardsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-76077908235081927202020-12-22T16:11:10.484+01:002020-12-22T16:11:10.484+01:00Hi Ralph,
Could you share the source code of your...Hi Ralph,<br /><br />Could you share the source code of your PDF to Gerber tool? Thanks in advance ;-)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-79774301064213724072020-04-20T05:27:47.825+02:002020-04-20T05:27:47.825+02:00In the same boat.In the same boat.Anonymoushttps://www.blogger.com/profile/04309525692611415759noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-19351467878400705532020-04-16T18:40:44.263+02:002020-04-16T18:40:44.263+02:00Hello I'm the one that built the mini back in ...Hello I'm the one that built the mini back in 1977. Got my boards up in working order with the exception of board 2 (keyboard circuit). I can not get it to track. When you turn it on everything is fine but when you press any key the pitch goes high and stays there no mater what other key you press afterword. I had this same problem with my first board back in 1977 and ended up buying board 2 from moog. I can get everything working with the original moog board for now but would like to find out whats up with my new made board. I have swapped all major components from moog bd to new bd and put the new components on the moog bd. <br />The moog bd still works great but my bd does not. Checked for the 8.5ma at keyboard string as well as voltages through out. Transistors have been matched where needed. Any one else have this problem? By the way I found 3 problems with my osc bd and one on the filter bd. Glad to here that you are working on yours again. <br /><br /><br /><br /><br /><br /><br /> Anonymoushttps://www.blogger.com/profile/04996305162845214009noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-930280354281409132020-04-04T00:13:17.329+02:002020-04-04T00:13:17.329+02:00Please can you tell me if you can email me the pcb...Please can you tell me if you can email me the pcb layout as I want to make my own boards? Anonymoushttps://www.blogger.com/profile/15775280419584117059noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-44222088370131660372020-03-19T13:23:50.850+01:002020-03-19T13:23:50.850+01:00That's great news! Excited to see what you'...That's great news! Excited to see what you've got going there!<br /><br />I'm back at it and writing out testing procedures for the board. It'll be little while before the documentation is complete but for now I've got the oscillator testing done - just need to confirm and add scope shots.<br /><br />Added the link to page one of my spreadsheet<br />https://docs.google.com/spreadsheets/d/1uTNWPULbq07FmUdAW3LTaJJMa69QbfvR27P0nwhXP6c/edit?usp=sharing<br />-KMKMhttps://www.blogger.com/profile/09711139549130697644noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-71303501578324656472020-03-16T01:16:27.651+01:002020-03-16T01:16:27.651+01:00Thought I would share that I am finally about fini...Thought I would share that I am finally about finished with my minimoog clone (at least the sound portion, I still plan on building a custom MIDI controller for it). Now I didnt do a full enclosure clone since I didnt have the time nor the resources for that. Instead I opted to buy a premade 5U 19" rackmount enclosure and drilled out all of my necessary holes. As such my mini doesnt have a built in keyboard and will instead be fully reliant on MIDI control.<br /><br />Just today I worked out all of the bugs in the oscillator board. I used the gerbers provided on this blog, and will probably post a list of all the problems with the oscillator board gerber here at some point once I get the chance (just a single trace cut and a few solder bridges).<br /><br />The oscillators are awesome and the filter sounds gorgeous. I am so excited to now have my first analog synth. I have kept my process fairly documented and am currently planning on making a video detailing that process and posting to YouTube at some point. <br /><br />Thank you for this page and the information it provided.<br /><br />- Ryanrboggs10https://www.blogger.com/profile/12740265868916162188noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-32219709379041471432020-02-19T20:58:55.334+01:002020-02-19T20:58:55.334+01:00For my 2nd build (perhaps years from now) I do pla...For my 2nd build (perhaps years from now) I do plan on drawing up my own panels and using current production switches that are found in the reissue. I had decided to go vintage as there are reproduction panels available that were designed around the old/original parts (old switches and 5/8" bushing pots). Next time when I have all of my own CAD drawings finalized it will resemble the reissue.KMhttps://www.blogger.com/profile/09711139549130697644noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-3833850016360957652020-02-19T19:21:02.626+01:002020-02-19T19:21:02.626+01:00I think if I had to do it all over again I would m...I think if I had to do it all over again I would make the ctrl panel in 1 or 2 circuit bds like the new revisited mini. Anonymoushttps://www.blogger.com/profile/04996305162845214009noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-54635413920105370772020-02-19T18:43:11.495+01:002020-02-19T18:43:11.495+01:00That's a good story! It's great that you h...That's a good story! It's great that you had drawn Bob's attention.<br /><br />I missed out on a used cabinet & chassis on ebay last year. All I need is the chassis!<br /><br />I may have a friend in a couple mechanical engineers that may help me out (my 3D modeling is worse than my free drawing lol). I'll add all documents to my build spreadsheet - you'll find the link in one of these comments.<br /><br />Best of luck! I've been nearly done for over a year ;)KMhttps://www.blogger.com/profile/09711139549130697644noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-65835493993018503202020-02-19T18:28:30.905+01:002020-02-19T18:28:30.905+01:00I may have the only actual mini without a serial n...I may have the only actual mini without a serial number.<br />Anonymoushttps://www.blogger.com/profile/04996305162845214009noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-30360755717476853282020-02-19T18:25:51.181+01:002020-02-19T18:25:51.181+01:00That's another long story. I am probably the 1...That's another long story. I am probably the 1st person to build a clone of the Mini. I built mine back in 1977 as a science fair project. Robert Moog showed interest in me than and sent me 10-1 blueprints of all 4 main boards (which I still have). I laid out with drafting tape, had the boards photoed and reduced. Had a circuit bd mfg locally make the bds. Ordered all major parts from Moog at discounted price back than and made me a set of boards. Talked with I forgot who now at Moog and was given the ok to purchase a used keyboard and broken cabinet from them for $150.00 ($100.00 for cabinet and $50.00 for keyboard). Robert Moog said he would help me but he did not want to see my clone mini in any of his repair centers for repair. My board are old and were not the best quality even back than so I've laid out new ones and want to make a new set of boards.Anonymoushttps://www.blogger.com/profile/04996305162845214009noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-18700584849172375732020-02-19T18:02:13.789+01:002020-02-19T18:02:13.789+01:00100 should be enough to find adequate matches from...100 should be enough to find adequate matches from my experience.<br /><br />Have you planned any of the construction for the cabinet or chassis (being the most difficult part of cloning the thing)?KMhttps://www.blogger.com/profile/09711139549130697644noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-31566374242521274072020-02-19T17:59:15.905+01:002020-02-19T17:59:15.905+01:00I'm getting them from Mouser. Trans are made b...I'm getting them from Mouser. Trans are made by Central Semiconductor. I'm not familiar with them, but I trust Mouser.Anonymoushttps://www.blogger.com/profile/04996305162845214009noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-77085301153619549502020-02-19T10:33:23.307+01:002020-02-19T10:33:23.307+01:00Moog's is fine, use it along with a decent mul...Moog's is fine, use it along with a decent multimeter. Layout the parts away from radiators and windows. Don't use your fingers. <br /><br />Where you getting 100 from? Hope it's not China 😲Matt Chttps://www.blogger.com/profile/11689735654006216925noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-30967009447315353122020-02-19T05:05:55.315+01:002020-02-19T05:05:55.315+01:00Thank you for the quick response. NOW. What is the...Thank you for the quick response. NOW. What is the best circuit to use for matching the transistors? Moogs or another? I plan on ordering 100 pcs to get the closest matches I can.Anonymoushttps://www.blogger.com/profile/04996305162845214009noreply@blogger.comtag:blogger.com,1999:blog-1717424041192245308.post-23884409767948356952020-02-19T04:58:29.616+01:002020-02-19T04:58:29.616+01:00Actually yeah, for the filter board specifically i...Actually yeah, for the filter board specifically it could cause some issues to use 2n3904s and I think I did use the MPS8097 for those.rboggs10https://www.blogger.com/profile/12740265868916162188noreply@blogger.com