Search found 158 matches

by degeneratedsines
Sat Jan 09, 2021 1:24 pm
Forum: Music Tech DIY
Topic: Doing Befaco Even VCO: is there much diff between tl072 smd chips?
Replies: 5
Views: 174

Re: Doing Befaco Even VCO: is there much diff between tl072 smd chips?

hum.. the Even VCO comes with all smd pre-soldered, right?
at least as far as can remember.
by degeneratedsines
Thu Jul 30, 2020 2:00 pm
Forum: Music Tech DIY
Topic: Alisa 1387 filter / 1377 waveshaper project
Replies: 19
Views: 801

Re: Alisa 1387 filter / 1377 waveshaper project

Nice!
I remember the SSSR Labs' waveshaper to include a few specific chips like уд708 and kp159ht1
by degeneratedsines
Sun Jul 19, 2020 4:53 am
Forum: Music Tech DIY
Topic: Vacuform - Vacuum tube diode SVF
Replies: 157
Views: 19806

Re: Vacuform - Vacuum tube diode SVF

Well, if you install a power jack instead of a blind cap in the upper right location next to the resonance pot, there is still the option to power it from an external AC/DC adapter.
by degeneratedsines
Fri Dec 13, 2019 1:39 pm
Forum: Music Tech DIY
Topic: 106 CHORUS THT by FEEDBACK
Replies: 471
Views: 49423

I think I will change R2 in the input amplifier to 15k for less gain... would that be ok?
On the smd version I went even further and replaced it with a 1k resistor. Much better when using eurorack level at input.
by degeneratedsines
Mon Oct 28, 2019 4:50 pm
Forum: Music Tech DIY
Topic: Strange electric/magnetic feeling when touching faceplates?
Replies: 29
Views: 2036

There is an equivalent brick with lower leakage is the GSM60B15-P1J. Thanks! If I can't find another workaround I might try to replace the brick. "getting a small electric shock" Don't get me wrong, it's not like I'm getting zapped everytime I touch the case. But when plugged in, you can definitely...
by degeneratedsines
Sun Oct 27, 2019 12:32 pm
Forum: Music Tech DIY
Topic: Strange electric/magnetic feeling when touching faceplates?
Replies: 29
Views: 2036

Thanks Graham for your answer. The external switching PSU cable has an earth connection: https://www.muffwiggler.com/forum/userpix2/42244_images_1.jpg But indeed nor the case chassis neither the 0V is earthed. I better understand the floating system and how it could become a safety hazard, looking a...
by degeneratedsines
Sun Oct 27, 2019 9:50 am
Forum: Music Tech DIY
Topic: Strange electric/magnetic feeling when touching faceplates?
Replies: 29
Views: 2036

I would check for AC volts between the case and ground on an electric outlet. I don't read much but I am not properly equipped to measure AC. Probably stray voltage. Do not use this case until you can determine what the source is. It’s a safety hazard! Really? Since the adaptor 220V AC -> 15V DC is...
by degeneratedsines
Sun Oct 27, 2019 8:52 am
Forum: Music Tech DIY
Topic: Strange electric/magnetic feeling when touching faceplates?
Replies: 29
Views: 2036

I have a newish MacBook Pro, late 2018,(IG not so new anymore) and there has always been this wierd feeling on the surfaces, kinda feels like a small bit of electricity flowing, and as my finger tips slide across the surface they are "attracted" and experience a bit of resistance to the physical mo...
by degeneratedsines
Sun Oct 27, 2019 5:56 am
Forum: Music Tech DIY
Topic: Strange electric/magnetic feeling when touching faceplates?
Replies: 29
Views: 2036

Strange electric/magnetic feeling when touching faceplates?

Hi, I bought myself a new skiff case with built-in PSU like this one: https://www.muffwiggler.com/forum/userpix2/42244_16958_eowave_3u_skiff_104hp_incl_psu_4_1.jpg Whenever I connect it's AC/DC 15V adaptor (a MEAN WELL GST60A15-P1J included in the box) to the case, I can feel a very unpleasant sensa...
by degeneratedsines
Fri Sep 06, 2019 1:24 pm
Forum: Music Tech DIY
Topic: Vacuform - Vacuum tube diode SVF
Replies: 157
Views: 19806

Hey there!
Any news on the full kit? :razz:
by degeneratedsines
Tue Aug 27, 2019 12:52 pm
Forum: Music Tech DIY
Topic: Anyone built the timo rozendal eurorack cem3340 vco?
Replies: 5
Views: 793

There is also Frequency Central CEM3340 based VCO http://www.frequencycentral.co.uk/?p=2150
by degeneratedsines
Wed Aug 21, 2019 1:08 pm
Forum: Music Tech DIY
Topic: Anyone built the timo rozendal eurorack cem3340 vco?
Replies: 5
Views: 793

Well the build in itself is good to learn SMD, 0805 is where you want to start.
But beware as the design suffers from the well known pwm issue.
by degeneratedsines
Fri Aug 16, 2019 12:53 am
Forum: Music Tech DIY
Topic: Vacuform - Vacuum tube diode SVF
Replies: 157
Views: 19806

can't wait to build it!
by degeneratedsines
Sat Aug 10, 2019 1:19 am
Forum: Music Tech DIY
Topic: [IN STOCK] DTM: Moog CP3-type discrete mixer PCB, Euro panel
Replies: 829
Views: 107848

If you are ordering from Thonk, this is what I use: https://www.thonk.co.uk/shop/ribbon-cable-24awg/
My build is displayed page 31. This was my very first DIY module build.
Just don't get PJ302M jack like I did, they don't fit in the case. I had to replace them with something else.
by degeneratedsines
Mon Jul 29, 2019 1:02 pm
Forum: Music Tech DIY
Topic: sockets for transistors on the back of my DIY boards?
Replies: 3
Views: 883

Yes you can solder components on the back of the board, just make sure the pins match expected holes. I've done that a few times, AFAIR film and electrolytic capacitors I ordered which packages didn't fit on the boards. That being said, the price of common transistors like 2N3906/2N3904 is ~0.05€ if...
by degeneratedsines
Sun Jul 28, 2019 1:58 am
Forum: Music Tech DIY
Topic: Machined pin DIP sockets from Tayda loose...WTF?
Replies: 15
Views: 1020

Maybe they changed their supplier? The ones I got a few month ago where fine.
by degeneratedsines
Sat Jul 27, 2019 3:08 am
Forum: Music Tech DIY
Topic: SMD IC questions.
Replies: 9
Views: 848

Same as @infinitemachinery. Use very little solder on a small tip (I am using 578-ETK). Carefully place the IC and solder a first corner. Before going on with another corner make sure the pins are perfectly aligned. then I proceed one pin at a time, very few solder, put the iron tip on a pin and dra...
by degeneratedsines
Mon Jul 15, 2019 3:00 pm
Forum: Music Tech DIY
Topic: Pots and knobs for my first build?
Replies: 12
Views: 1169

if you went for smallbear, I hope you didn't follow the link by @TheMentat that was pointing at 16mm linear & audio tapers. The sample & hold module needs a reverse audio taper which is this link instead.
For the 9mm mixer potentiometers, his link was ok.
What did you choose as knobs?
by degeneratedsines
Fri Jul 05, 2019 5:57 am
Forum: Music Tech DIY
Topic: Can't find a 12V Ac/Ac wallwart
Replies: 11
Views: 1383

There is one seller on amazon.fr which is offering one for almost 50€. I bought one last year from him for around half that price, not sure why the price doubled since then. Maybe try to contact him and negogiate.
by degeneratedsines
Fri Jul 05, 2019 5:38 am
Forum: Music Tech DIY
Topic: Washing PCBs when you have hard water...
Replies: 13
Views: 1099

sduck wrote:I just use hot tap water (don't know whether it's hard or soft)
You know you have hard water if all your dishes are covered with stains after cleaning and drying. Glass walls in the shower also become a nightmare.
by degeneratedsines
Sat Jun 01, 2019 6:25 am
Forum: Music Tech DIY
Topic: Can I Hire You To Fix My Resonant EQ? (Serge Euro)
Replies: 5
Views: 873

can you post a video of the issue please?
by degeneratedsines
Mon May 13, 2019 5:30 pm
Forum: Eurorack Modules
Topic: Intellijel Rubicon II - well suited as LFO/Modulator??
Replies: 18
Views: 871

imho one of the most important feature for a modulation/lfo is the ability to sync/reset with phase offset. Not many modules around with this feature.
by degeneratedsines
Mon May 13, 2019 4:27 pm
Forum: Eurorack Modules
Topic: Introducing Chainsaw - 4hp polyphonic supersaw oscillator
Replies: 125
Views: 17774

pretty nice!
I can easily imagine doing a Rank 1 cover with this.
by degeneratedsines
Wed May 08, 2019 1:31 pm
Forum: Eurorack Modules
Topic: Introducing Chainsaw - 4hp polyphonic supersaw oscillator
Replies: 125
Views: 17774

wait, 3*7 oscs? can you make lush pads?
by degeneratedsines
Mon May 06, 2019 4:45 am
Forum: Music Tech DIY
Topic: Vacuform - Vacuum tube diode SVF
Replies: 157
Views: 19806

I feel you, it's a pain when things go not as smooth as planned.
Still it is nice to have this update, no worries for delay.

Go to advanced search