bobbass4k Posted January 9, 2018 Share Posted January 9, 2018 He does sell PCBs, but even with my embarrassingly large farnell discount it only came out a few quid cheaper to source the bits myself, so for the convenience I plumped for a kit. 1 Quote Link to comment Share on other sites More sharing options...
ahpook Posted January 9, 2018 Share Posted January 9, 2018 4 hours ago, bobbass4k said: He does sell PCBs, but even with my embarrassingly large farnell discount it only came out a few quid cheaper to source the bits myself, so for the convenience I plumped for a kit. I think you'll be impressed. Quote Link to comment Share on other sites More sharing options...
kodiakblair Posted January 9, 2018 Share Posted January 9, 2018 Does anybody here take on the task of building kits for those of us clueless about electronics ? I can swap pickups and pots no trouble but I'm 100% certain the Growling Krizzly DLX is beyond me. Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 11, 2018 Share Posted January 11, 2018 (edited) On 1/9/2018 at 22:13, kodiakblair said: Does anybody here take on the task of building kits for those of us clueless about electronics ? I can swap pickups and pots no trouble but I'm 100% certain the Growling Krizzly DLX is beyond me. I have done in the past... But that Growling Krizzly DLX looks like quite the undertaking!!! EDIT: I should point out there's nothing about the electronics side of such a build that I would find daunting in the least! It's the enclosure drilling and application of decals that would have me quaking in my boots... Edited January 11, 2018 by Bigwan 1 Quote Link to comment Share on other sites More sharing options...
paul_5 Posted January 11, 2018 Share Posted January 11, 2018 Took a Behringer VP1 apart today to transplant it in another box with better quality sockets and switch. Minutes of fun! Quote Link to comment Share on other sites More sharing options...
bartelby Posted January 12, 2018 Share Posted January 12, 2018 On 1/11/2018 at 08:34, Bigwan said: I have done in the past... But that Growling Krizzly DLX looks like quite the undertaking!!! EDIT: I should point out there's nothing about the electronics side of such a build that I would find daunting in the least! It's the enclosure drilling and application of decals that would have me quaking in my boots... I love populating the pcb, don't mind drilling the enclosure. The decals would be fine too. But the sodding wiring... urgh!! I have 3 or 4 projects that have stalled at the wiring stage... Quote Link to comment Share on other sites More sharing options...
bobbass4k Posted January 16, 2018 Share Posted January 16, 2018 On 1/9/2018 at 22:13, kodiakblair said: Does anybody here take on the task of building kits for those of us clueless about electronics ? I can swap pickups and pots no trouble but I'm 100% certain the Growling Krizzly DLX is beyond me. I'll do stripboard builds and kits for friends/FoF etc for cost of parts and a bottle of nice beer or the like., but I'm always very wary of it. Stuff I build for myself is always made to a very high functional standard, but the cosmetics/finish is often basic or non-existent because, well, I don't really care. Once you start taking money for the actual building, you have to start matching/competing with peoples expectations, which can mean a lot of headaches ("When I said blue I didn't mean that blue"). Not to mention after care expectations ("Yes I put it in the dishwasher but why didn't you make it waterproof? Fix it for free or I'll tell everyone you're a scammer"). If you've got the patience and the inclination for a commercial endeavour there's probably a decent niche to be carved out there, but it's not for me. Quote Link to comment Share on other sites More sharing options...
bobbass4k Posted January 16, 2018 Share Posted January 16, 2018 Sidenote, the Pumpernickel went together like a dream and does exactly what I've always wanted a compressor to do. Not boxed yet as I'm waiting for some Ferric Chloride to arrive to begin my adventure into enclosure etching... Next time I post I may be blind... Quote Link to comment Share on other sites More sharing options...
kodiakblair Posted January 16, 2018 Share Posted January 16, 2018 Cheers @bobbass4k. Those were very valid reasons and I know exactly what you mean. Long packed in doing any work for friends and family due to unrealistic expectations. Quote Link to comment Share on other sites More sharing options...
bobbass4k Posted January 20, 2018 Share Posted January 20, 2018 I reading it back that probably came off more cynical than I'd intended, I know 95% of people would probably be fine, but it's just always felt like a can of worms to me. First foray into etching - Annoyingly the printer at work died the only day I could print so I couldn't do toner transfer so settled for more of a "horror movie" motif, I painted it with nail varnish then scratched the letters in and random bits off. It's not perfect but I've learned a lot for next time. 1 Quote Link to comment Share on other sites More sharing options...
kodiakblair Posted January 20, 2018 Share Posted January 20, 2018 2 hours ago, bobbass4k said: I reading it back that probably came off more cynical than I'd intended, I know 95% of people would probably be fine, but it's just always felt like a can of worms to me. Not cynical at all,it's called being realistic. Makes no odds if 95% of folk are great,compared to the hassle the normally very vocal 5% can cause it's not worth it. Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 23, 2018 Share Posted January 23, 2018 (edited) On 1/9/2018 at 22:13, kodiakblair said: Does anybody here take on the task of building kits for those of us clueless about electronics ? I can swap pickups and pots no trouble but I'm 100% certain the Growling Krizzly DLX is beyond me. Just been reading Julian Pohler's blog post on bassic.de. He's working on the new version of the Growling Krizzly. Given his recent run of form there'll likely be a CNC milled enclosure if he releases it as a kit (features: BB footprint, screwed-in potentiometers, top mount sockets, adjustable Contour + Freq switch (500 / 800Hz), adjustable presence, + 15dB boost for the jack-out, permanently active DI - see it here: https://www.bassic.de/threads/lazarus-bastel-blog.14857964/page-26 ). I'd be interested in building one of these myself! Edited January 23, 2018 by Bigwan 1 Quote Link to comment Share on other sites More sharing options...
kodiakblair Posted January 25, 2018 Share Posted January 25, 2018 @Bigwan That solves a lot of worries. I'll just sit tight until the new version, Cheers for letting me know. Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 25, 2018 Share Posted January 25, 2018 Current project on breadboard. Not so much an effect per se, at least not yet... but certainly related! Arduino Micro controlling 0.96" 124x64 OLED display, quad digital pot chip and 4 status LEDs. Inputs from single rotary encoder (with push switch) and 2 momentary footswitches. Foot switches are notionally for bypass and selection of presets. LEDs for bypass state and current/next preset indication. OLED display for preset indication and menu structure for modifying and saving presets to Arduino EEPROM using rotary encoder for navigation. All sorts of possibilities with this! 2 Quote Link to comment Share on other sites More sharing options...
jposega Posted January 25, 2018 Share Posted January 25, 2018 12 minutes ago, Bigwan said: Current project on breadboard. Not so much an effect per se, at least not yet... but certainly related! Arduino Micro controlling 0.96" 124x64 OLED display, quad digital pot chip and 4 status LEDs. Inputs from single rotary encoder (with push switch) and 2 momentary footswitches. Foot switches are notionally for bypass and selection of presets. LEDs for bypass state and current/next preset indication. OLED display for preset indication and menu structure for modifying and saving presets to Arduino EEPROM using rotary encoder for navigation. All sorts of possibilities with this! Can you give any examples of how this could be used? Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 25, 2018 Share Posted January 25, 2018 4 minutes ago, jposega said: Can you give any examples of how this could be used? Initial thoughts... Darkglass Vintage Microtubes clone... with presets... But it should work with lots of pedal designs. It is restricted by the voltage the digital pot IC can handle and the configuration of the pots required. This one has 4 100k ohm linear pots (linear, log and reverse log responses can all be handled in software though). But a mixture of resistances would need more ICs which would get difficult pretty quickly. More of the same resistances should be easy as you can chain ICs together. Available values are restricted too - 10k and 100k seem the most popular, although you can get 200k and 1M just not in this device type as far as I'm aware. 1 Quote Link to comment Share on other sites More sharing options...
jposega Posted January 25, 2018 Share Posted January 25, 2018 7 minutes ago, Bigwan said: Initial thoughts... Darkglass Vintage Microtubes clone... with presets... But it should work with lots of pedal designs. It is restricted by the voltage the digital pot IC can handle and the configuration of the pots required. This one has 4 100k ohm linear pots (linear, log and reverse log responses can all be handled in software though). But a mixture of resistances would need more ICs which would get difficult pretty quickly. More of the same resistances should be easy as you can chain ICs together. Available values are restricted too - 10k and 100k seem the most popular, although you can get 200k and 1M just not in this device type as far as I'm aware. I really like the idea of having easy digital presets for analog effects. Very cool. Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 25, 2018 Share Posted January 25, 2018 Just now, jposega said: I really like the idea of having easy digital presets for analog effects. Very cool. So did I, hence why I set about doing this. I wanted to learn a bit more about coding with Arduinos/microprocessors too, so killed 2 birds with one stone, so to speak. 2 Quote Link to comment Share on other sites More sharing options...
OzMike Posted January 27, 2018 Share Posted January 27, 2018 On 1/25/2018 at 15:37, Bigwan said: Current project on breadboard. Not so much an effect per se, at least not yet... but certainly related! Arduino Micro controlling 0.96" 124x64 OLED display, quad digital pot chip and 4 status LEDs. Inputs from single rotary encoder (with push switch) and 2 momentary footswitches. Foot switches are notionally for bypass and selection of presets. LEDs for bypass state and current/next preset indication. OLED display for preset indication and menu structure for modifying and saving presets to Arduino EEPROM using rotary encoder for navigation. All sorts of possibilities with this! What digital pot are you using, out of curiosity? Last time I looked at this kind of thing in any detail a few years ago the reality of integrating digital pots with existing analog effects was not pretty for a few reasons, and referring to the actual I was using: https://www.mouser.com/ds/2/609/AD5241_5242-586728.pdf 1) tolerance - 30% - probably ok for one-off DIY projects, but not so good for predictable results 2) current handling = low 3) voltage range; max voltage is well below the 9V of standard effects pedals ... the end result being you probably can't just snip out an analog pot and replace it without a digital one without analysing how the circuit works and making sure the max current and max voltage isn't exceeded. Would love to see someone get a hardy and reliable solution going in this area, though! Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 27, 2018 Share Posted January 27, 2018 12 hours ago, OzMike said: What digital pot are you using, out of curiosity? Last time I looked at this kind of thing in any detail a few years ago the reality of integrating digital pots with existing analog effects was not pretty for a few reasons, and referring to the actual I was using: https://www.mouser.com/ds/2/609/AD5241_5242-586728.pdf 1) tolerance - 30% - probably ok for one-off DIY projects, but not so good for predictable results 2) current handling = low 3) voltage range; max voltage is well below the 9V of standard effects pedals ... the end result being you probably can't just snip out an analog pot and replace it without a digital one without analysing how the circuit works and making sure the max current and max voltage isn't exceeded. Would love to see someone get a hardy and reliable solution going in this area, though! AD5144ABRUZ100 I think it is (phone autopredicted that so assume it's right!). I hadn't given the current handling much thought to be honest, but for the initial project I think the 5 odd volt limit should be fine - it definitely won't work for every pedal for that very reason. I got lucky in that the Guma Antique I plan on grafting this to uses 4 100k pots, 2 lin, 1log, 1 inverse log. These chips are +/- 20% tolerance, again I'm going from memory as it's been a few weeks since I selected them and haven't looked at anything other than the i2c section of the dataset and the pinout since, but if they are that's same as the ubiquitous 16mm Alpha pot that seems to be used in most every analogue pedal nowadays. Quote Link to comment Share on other sites More sharing options...
Bigwan Posted January 28, 2018 Share Posted January 28, 2018 Just showed that pic to the wife and all she could see was all the wiring. Must tidy it up... Quote Link to comment Share on other sites More sharing options...
Bigwan Posted February 14, 2018 Share Posted February 14, 2018 1590a Big Muff kit now available from pedalparts.co.uk if anyone is interested (no affiliation). Looks a fiddly blighter! 1 Quote Link to comment Share on other sites More sharing options...
Bigwan Posted February 14, 2018 Share Posted February 14, 2018 ...and a rat too! 1 Quote Link to comment Share on other sites More sharing options...
Rich Posted March 29, 2018 Share Posted March 29, 2018 (edited) Finally decided to get my derrière into gear and finish the vero-based Mammoth hybrid I've had hanging around half finished for ages. I'm also incorporating a blend control for full flexibility, if it works that is! Watch this space Edited April 3, 2018 by Rich Quote Link to comment Share on other sites More sharing options...
ordep Posted April 3, 2018 Share Posted April 3, 2018 any tips on painting enclosures? got a couple of raw ones that I want to paint. Looking for something thats durable but wont break the bank. If it matters, I am looking at painting them white. Quote Link to comment Share on other sites More sharing options...
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