Search found 1662 matches

by megaohm
Mon Feb 15, 2021 5:13 pm
Forum: 5U Format Modules
Topic: Best Fixed Filter Bank?
Replies: 71
Views: 7375

Re: Best Fixed Filter Bank?

I have a plain FFB from COTK and feel I am underusing it, so always on the lookout for examples of what you can get out of it. I'd have to use an external VCA/mixer but no issue... For the DotCom version, I had to double the normal gain of the VCA to get it into the howling range. This experiment m...
by megaohm
Mon Feb 15, 2021 4:59 pm
Forum: 5U Format Modules
Topic: Best Fixed Filter Bank?
Replies: 71
Views: 7375

Re: Best Fixed Filter Bank?

Thanks, Steffen!

I just saw this today...a month and a half ago?
Where have I been?!
:zombie:
by megaohm
Tue Dec 22, 2020 4:06 pm
Forum: Music Tech DIY
Topic: Why 1000pF as opposed to 1nF?
Replies: 15
Views: 413

Re: Why 1000pF as opposed to 1nF?

glennfin wrote:
Tue Dec 22, 2020 9:43 am
picofarad = "puff" for short :mrgreen:

Why not "piff" ?
:hmm:
by megaohm
Tue Dec 22, 2020 3:21 pm
Forum: 5U Format Modules
Topic: PSA: Junkie XL massive 5U sale
Replies: 140
Views: 5131

Re: PSA: Junkie XL massive 5U sale

He has two CdS modules for $50 less than the last few I sold. I built these for him as a matched pair - vactrols were selected for similar behavior/response. I will not produce these again, so for those who may want one, this is a good deal. https://reverb.com/shop/the-official-junkie-xl-reverb-shop...
by megaohm
Wed Dec 02, 2020 2:27 pm
Forum: 5U Format Modules
Topic: Hey folks, remember me?
Replies: 29
Views: 1234

Re: Hey folks, remember me?

Really like that track!
by megaohm
Wed Nov 18, 2020 12:54 pm
Forum: 5U Format Modules
Topic: Modcan A format DIY Odds and Ends
Replies: 7
Views: 464

Re: Modcan A format DIY Odds and Ends

Very Cool!!!
I like the use of the blue and green jacks, too.
:tu:
by megaohm
Thu Nov 12, 2020 5:24 pm
Forum: 5U Format Modules
Topic: Is Megaohm still in business?
Replies: 19
Views: 1059

Re: Is Megaohm still in business?

I still exist! :party: Trying to clear out all long overdue custom jobs. Don't have any modules for sale - out of panels and pcbs on some. The only production module I can make is the MA20 because I have the pcbs. Panels I would have custom made to order (re:synth or tardishead or front panel expres...
by megaohm
Wed Oct 28, 2020 12:32 am
Forum: 5U Format Modules
Topic: Best LED or method to get an incandescent lamp look for your panel?
Replies: 8
Views: 435

Re: Best LED or method to get an incandescent lamp look for your panel?

Flounderguts wrote:
Sun Oct 25, 2020 12:53 pm
very bright LEDs with higher-value resistors, so that they are dim. Looks more authentic than a properly-spec'd dim LED.
I like that look. Surprisingly effective with the water clear LEDs and sooooo much easier on the eyes!
by megaohm
Wed Apr 22, 2020 11:38 am
Forum: Music Tech DIY
Topic: Cleaning up PCBs
Replies: 56
Views: 2730

Re: Cleaning up PCBs

GrantB's post says it all. The iso loosens the flux but you still need to get it off of the pcb with a paper towel, etc. Occasionally I do small boards with only 60/40 rosin flux solder. To clean those I: Find a shallow plastic lid (chinese takeout container) Place pcb in the middle and fill with is...
by megaohm
Sat Apr 18, 2020 4:03 am
Forum: 5U Format Modules
Topic: Marienberg VC Envelope Generator B (an ADSR Laboratory)
Replies: 32
Views: 2569

Re: Marienberg VC Envelope Generator B (an ADSR Laboratory)

Great explanations and post!!!
Fascinating variety of functions on that module.
by megaohm
Sun Mar 15, 2020 5:17 pm
Forum: 5U Format Modules
Topic: EDV-Technik-TS MUC-410 MIDI-->CV Converter
Replies: 21
Views: 3324

Re: EDV-Technik-TS MUC-410 MIDI-->CV Converter

I'm ordering pcbs I designed for this MIDI MUC device to build in MU format. Buy a kit from ebay or elsewhere and you can use the pcbs (two of them) to build in MU. Panel pcb so wiring is fairly minimal. Am hoping to sell five or six pcb sets from my small run of ten. This is for a custom order so I...
by megaohm
Tue Mar 03, 2020 10:38 am
Forum: 5U Format Modules
Topic: Best Fixed Filter Bank?
Replies: 71
Views: 7375

Re: Best Fixed Filter Bank?

Yeah, you can tap the output either from the FFB output or from the mixer output. I don't think it matters too much which one you choose. I didn't even use a multiple, just a Y-splitter like this one: I was just wondering if it is possible to modify the dotcom ffb to integrate the feedback path int...
by megaohm
Tue Jan 07, 2020 7:16 pm
Forum: Music Tech DIY
Topic: Source or alternate for LM7810ACT Voltage Regulator?
Replies: 12
Views: 1020

Re: Source or alternate for LM7810ACT Voltage Regulator?

For that project (most others, too) you do not need any special part number. Play fast and loose with the letters. It is a 10V regulator. It's footprint is TO-220 (listed as TO-220-3). Just search "7810" and look under semiconductors. Plenty to chose from: https://www.mouser.com/Semiconductors/Power...
by megaohm
Wed Dec 11, 2019 1:47 pm
Forum: Music Tech DIY
Topic: JH Living Vocoder [BUILD THREAD]
Replies: 328
Views: 30720

True beauty!
Very inspiring.
:party:
by megaohm
Fri Nov 29, 2019 4:41 pm
Forum: 5U Format Modules
Topic: Best Fixed Filter Bank?
Replies: 71
Views: 7375

Flareless wrote:
Schlumpfhut wrote:One can always go down on DIY lane to reduce costs
I think this is the #1 misconception about DIY
:yay:
by megaohm
Fri Nov 29, 2019 4:27 pm
Forum: Music Tech DIY
Topic: super expensive DIY voltage refference.
Replies: 8
Views: 1117

The BOM for that lists raw parts cost as $300+.
It's a special thing so not terrible.

There is also a low cost, less precise version using two LM339.
They have an OSH Park pcb file to use for that one, too.

Thanks for posting this. Enjoying the read.
by megaohm
Thu Nov 21, 2019 8:01 pm
Forum: Music Tech DIY
Topic: A new thru zero triangle core VCO
Replies: 239
Views: 18716

Thank you for that link!
Only gotten thru the first 30 pages and already there is so much cool stuff and ideas.
Also, a couple things on RTD resistors.
lemberski wrote:Here how Jim Williams used the LM311 (p.10 from this pdf: http://www.introni.it/pdf/Williams%2003 ... %20EDN.pdf):
by megaohm
Sun Nov 10, 2019 2:30 am
Forum: Music Tech DIY
Topic: Tantek modular effects
Replies: 9
Views: 1744

Check out the Modulation source module. Cool LFO and it is different than the typical synth LFOs I have seen.
by megaohm
Wed Nov 06, 2019 5:56 pm
Forum: Music Tech DIY
Topic: Is anyone working towards an EML 100/200 clone?
Replies: 14
Views: 2048

Bourns and BI Tech/TTE currently make center tapped pots. Both are legit companies with good reputations. Contact BI Tech if you need to special order. Their min quantities are usually low (maybe a couple hundred), inexpensive, and better quality than most (conductive plastic, 100,000 rotations rati...
by megaohm
Mon Nov 04, 2019 8:40 pm
Forum: Music Tech DIY
Topic: Joystick Joy
Replies: 7
Views: 1065

They are pot based and are great for synth use. I don't recall the connector name they mate with but that should be easy to google. They also have a second push button on the back. As stated already, the stick is spring loaded or free moving selected via bottom switches, one per axis. Good price for...
by megaohm
Sat Oct 26, 2019 1:03 pm
Forum: 5U Format Modules
Topic: JH Trapezoid in a single MU
Replies: 7
Views: 1267

elmerfudd wrote:Killer,killer module, great build, sonic bliss. Phill has made a couple of these in Modcan A format for me. Couple of my favorite modules.
Those are my favorite A Series panels.
I started putting together a cab for that format because of it.
:nana:
by megaohm
Sat Oct 26, 2019 12:45 pm
Forum: 5U Format Modules
Topic: JH Trapezoid in a single MU
Replies: 7
Views: 1267

Kudos for an outstanding panelling! It must have been a lot of fun to wire. Well done. Thanks! The wiring is time consuming but not bad, really. Everything is connected to the pcb via MTA100 connects so I didn't have to do much soldering in the congestion. Here's another pic of the back. https://ww...
by megaohm
Sat Oct 26, 2019 12:36 pm
Forum: 5U Format Modules
Topic: JH Trapezoid in a single MU
Replies: 7
Views: 1267

looks lovely phil.. :) does the VCA add colour..? and how does the bias effect it all..? If I'm reading the panel correctly, the bias knob acts as a crossfader between the envelope signal and a constant (probably +5V) voltage, so that when the knob is fully counterclockwise the VCA is only affected...
by megaohm
Fri Oct 25, 2019 4:58 pm
Forum: 5U Format Modules
Topic: JH Trapezoid in a single MU
Replies: 7
Views: 1267

JH Trapezoid in a single MU

Built this recently for a custom job. Wasn't sure how or if it would work in a single MU space. I was apprehensive the controls would be too cramped. It actually worked well and all controls are easy to use. Will be building one for myself now. Was thinking there may be a person or two on MW who wou...
by megaohm
Sat Oct 12, 2019 11:30 am
Forum: 5U Format Modules
Topic: Need your LPG experience in MU world (opinions/audio)
Replies: 22
Views: 2530

Still have the one CdS left.
That is the last pcb and last panel.
Same with the LFO modules.
I do not plan to restock these.

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