Search found 132 matches

by eef
Thu Jul 16, 2020 1:51 pm
Forum: Fractional Rack Modules
Topic: And so it begins... Blacet Research carries on
Replies: 32
Views: 1664

Re: And so it begins... Blacet Research carries on

I’m glad to hear this. My first modular was Blacet, and it is still great stuff!
by eef
Thu Jul 16, 2020 1:40 pm
Forum: Fractional Rack Modules
Topic: Blacet pot upgrade? (2100, Miniwave, Super VCA)
Replies: 14
Views: 1137

Re: Blacet pot upgrade? (2100, Miniwave, Super VCA)

I was playing with my Blacet system last night and noticed some pots getting really “scratchy”. There was mention above about instructions on the Blacet site for how to lubricate the pots with WD-40? That sounds odd to me, and I could find nothing about that on the site. Perhaps there is generic pot...
by eef
Tue May 05, 2020 12:52 pm
Forum: Eurorack Modules
Topic: Retail orgone accumulator.
Replies: 106
Views: 12377

Re: Retail orgone accumulator.

If it was my comment about the name you are responding to hope I did not offend you! Strangely enough your note about the PSU and booting is a problem I am seeing, so I am looking forward to your fix. I have been pulling it out of the case and poking at the wires, which does fix it, but I suspect th...
by eef
Sat Apr 18, 2020 11:14 pm
Forum: Eurorack Modules
Topic: Retail orgone accumulator.
Replies: 106
Views: 12377

Re: Retail orgone accumulator.

:mygod: I guess I should say a little more? I have a DIY OA from quite some time ago, and just got back into playing with it. I was so excited about the programmability of it that I actually went and connected a USB adapter to the back of the case it is in so I could write my own code and easily loa...
by eef
Sun May 05, 2019 10:32 am
Forum: Announcements - Please read!
Topic: Mike has passed away.
Replies: 915
Views: 105272

Rest In Peace, Mike.
by eef
Sun May 21, 2017 6:39 pm
Forum: Modular Synth General Discussion
Topic: Moogfest 2017 Engineer Pass - BFAM?
Replies: 4
Views: 1174

MoogFest was awesome. My flight home got canceled so I recorded this just now in my hotel room:
https://soundcloud.com/robert-efroymson/dfam-in-nc

I am sooooo tired.
by eef
Tue Apr 11, 2017 12:11 pm
Forum: Music Tech DIY
Topic: ARP2600 full size
Replies: 62
Views: 4823

yep your reading right every modules from the arp2600 will be available as single versions and a case lid for the 3620 keyboard to house them. there will also be arp2500 modules in same graphic and format size first one being the 1047 I have two vintage Cherry matrix switch units sitting in a drawe...
by eef
Mon Apr 03, 2017 2:38 pm
Forum: Modular Synth General Discussion
Topic: History of Electronic Music - 476 tracks!
Replies: 25
Views: 1524

Not only is Subotnick ... Whoever compiled that list really doesn't care about American music. I just looked at the Ubuweb site, and noticed it was "reputedly curated by a Brazilian student". Perhaps the issue you notice is a bit of "Yanqui go home"? If, dear moderator, I have stepped over the line...
by eef
Mon Apr 03, 2017 1:47 pm
Forum: Modular Synth General Discussion
Topic: Moogfest 2017 Engineer Pass - BFAM?
Replies: 4
Views: 1174

Drummer from Another Mother

from BFAM to DFAM: http://www.synthtopia.com/content/2017/ ... fest-2017/

I'm looking forward to building mine ...
by eef
Tue Mar 28, 2017 7:11 am
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) OSC Sync PCB
Replies: 219
Views: 16605

moncks_crossing wrote:Which switch goes to which VCO?
Could you do another one of your diagrams to show the wiring?
I was worried about this too, but it's easy to wire first, then mount. You can easily work out which is which that way.

If you want to neaten the wiring after, it's no big deal.
by eef
Tue Mar 14, 2017 9:21 pm
Forum: Music Tech DIY
Topic: TTSH Ver.3 (rev.8) General build thread
Replies: 2015
Views: 115299

I found you can replace almost every opamp with a TL071. The only exception I found was the one in the heart of the Ring Mod. I also replaced some 5172s with pn2222 and that also worked fine, and did a JFET swap on the OSC sync board also. I think you can find my comment about this in the V2 build ...
by eef
Mon Mar 13, 2017 11:57 pm
Forum: Music Tech DIY
Topic: TTSH Ver.3 (rev.8) General build thread
Replies: 2015
Views: 115299

So I've read quite a bit about issues with the slew rate of the LM301... just curious if anybody has managed to try their TTSH successfully with TL071s instead of the LM301s? If so, is there any appreciable improvement in sound, or improved performance/stability of the other non-audio circuits? Tha...
by eef
Fri Jan 06, 2017 12:49 am
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) Ver.2 General build thread
Replies: 1491
Views: 91446

Filter behavior

I notice that if I set both the Filter initial frequency slider, and the ADSR amount slider to the maximum I don't get as loud a signal as I do if I back one or the other off a bit. Is this normal, or do I need to redo the adjustment of my filter? I hope I win a prize for the most minor issue raised...
by eef
Mon Dec 19, 2016 7:23 pm
Forum: Expert Sleepers
Topic: Silent Way and Linnstrument
Replies: 13
Views: 626

I think he's saying he used the Learner to control Silent Way plug-ins directly via CC (no OSC involved), and so generate CVs from CCs. SW DC gives you a very direct way to do this. If you don't like the output range, you can stack them up to scale and offset the CVs. Or even just turn down the tra...
by eef
Mon Nov 21, 2016 6:52 pm
Forum: Expert Sleepers
Topic: Silent Way and Linnstrument
Replies: 13
Views: 626

Thanks for the input guys! I found that the parameter automation was very painful in Logic, so I used the Learner. At first I thought it was not working, because I did not see the message history I expected, but it seems it was working (is the empty message history a bug?). Currently I have used it ...
by eef
Fri Nov 18, 2016 6:37 pm
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) OSC Sync PCB
Replies: 219
Views: 16605

It must have been the 5459s. The power polarity was correct. I swapped out the 5459s for 2N5486 (which have very similar specs, if I am reading the data sheets correctly, which I very well may not be, since I don't really know what the relevant measures are). For good measure swapped out the 3904s f...
by eef
Fri Nov 18, 2016 6:32 pm
Forum: Expert Sleepers
Topic: Silent Way and Linnstrument
Replies: 13
Views: 626

Silent Way and Linnstrument

I recently got Silent Way, and I've been able to use it to send Pitch and Gate info to my synth with the SW Voice Controller. That works great, I can play the Linnstrument or use the new sequencer feature just fine. Fun! However, I'd like to be able to send the Y and Z dimensions as well (Timbre and...
by eef
Tue Nov 15, 2016 3:15 pm
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) OSC Sync PCB
Replies: 219
Views: 16605

I only double or triple checked the power polarity, so that might be it, I was possibly in too much of a hurry, trying to get the very last bit done. The Gate Boost I had just put in worked super quick and easy. Maybe I just wasn't careful. I got a packet of 2n4125s from Tayda. While waiting for the...
by eef
Mon Nov 14, 2016 6:17 pm
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) OSC Sync PCB
Replies: 219
Views: 16605

I mentioned this in the main v2 build thread, but thought I could put it here as well. I never could get my sync board to work. It kept killing the 2n4125 on the input side sub-boards. I am wondering if the 2N5459 I got from somewhere or other are bad, and maybe I should swap them for 2N5486 ? That ...
by eef
Mon Nov 14, 2016 12:27 pm
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) Ver.2 General build thread
Replies: 1491
Views: 91446

Some rambling thoughts

Finally got mine cased and done. It has a couple of useless switches on the front, because I could not get the $#%&&@! Osc sync to work. It blew up the 4125s on all three oscillator sub boards at one time or another. The good news is I found that BC558s work fine in there (just turn them around). Sp...
by eef
Fri Nov 11, 2016 4:15 pm
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) Ver.2 General build thread
Replies: 1491
Views: 91446

Is the shell of the reverb also grounded? I had bad hum until I did that, now it is ... basically acceptable. Trying to address / reduce reverb hum on my TTSH, wanted to get some recommendations on where to go next. As it stands, I've put shielded cable from the main board to both in/out on the reve...
by eef
Fri Nov 04, 2016 11:46 am
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) Ver.2 General build thread
Replies: 1491
Views: 91446

I now have the filter working a bit, but I don't see anywhere near the correct output voltage. It is very weak. Quick update, I finally got the filter working. First thing was I noticed that I had incorrectly swapped in a 3904 for one of the 3906s in the section between the dual jfet and the opamp....
by eef
Mon Oct 24, 2016 3:18 pm
Forum: Music Tech DIY
Topic: Two Thousand Six Hundred (TTSH) Ver.2 General build thread
Replies: 1491
Views: 91446

I now have the filter working a bit, but I don't see anywhere near the correct output voltage. It is very weak. I have been going through and through the various 2n2954 and 2n3958s I got from China, and thinking that they may have been the problem all along. I just ordered some LS3958s from trendset...
by eef
Wed Oct 05, 2016 6:03 pm
Forum: Wiard
Topic: OMG WOW AND THANKS
Replies: 58
Views: 11303

Any advice for someone starting out with a 6 module Wiard system in 2016? Don't waste money on a custom case before you know what you are doing and what you really need. You will change your mind, the only variable is how soon. Often this is before the case is even finished. Alternatively, pick a c...
by eef
Mon Sep 05, 2016 4:00 pm
Forum: Music Software
Topic: Kyma Symposium Leicester UK
Replies: 2
Views: 482

I'm in Leicester now for this. Any other wigglers here?? :goo:

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