Search found 108 matches

by Rarecomponentadsr
Mon Oct 30, 2017 10:27 am
Forum: Modular Forum
Topic: 901b
Replies: 2
Views: 2603

901b

There is a PCB track and component pattern on the web of the Moog 901b which looks authentic. Has anyone made a 901b clone using this diagram ? If you did.....does it work ? Sorry I don't know how to post the image and I cannot find a link. (Component values in red/green. Track links in blue) I foun...
by Rarecomponentadsr
Thu Oct 26, 2017 7:36 pm
Forum: Modular Forum
Topic: 901b tracking
Replies: 2
Views: 2610

Re: 901b tracking

Thanks for those ideas. I actually did that with the first two which worked fine ..but this third one is a rogue. As the first two work fine I don't want to mess with the 901a ... I guess it could be Q7 ...maybe an odd frequency compared to the other two. Just wondered if anyone had had this problem.
by Rarecomponentadsr
Thu Oct 26, 2017 10:44 am
Forum: Modular Forum
Topic: 901b tracking
Replies: 2
Views: 2610

901b tracking

One of my three 901b clones doesn't track properly. All three are identical in components but although replacing P2 I'm still getting the problem that I run out of turn on the P2 in the problem 901b. I get sync on the upper end of the keyboard but it's way out at the bottom and there's no more turn ...
by Rarecomponentadsr
Mon Aug 28, 2017 6:21 am
Forum: Modular Forum
Topic: Model 15 hum
Replies: 7
Views: 4113

Re: Model 15 hum

No ...not normal. I once had this problem . The only thing you can do is check your power connections, make sure it is properly earthed. Check you haven't got any loose connections. Also where is your set up ? Isolate it away from anything where it could pick up external interference . Is there anyt...
by Rarecomponentadsr
Sat Apr 22, 2017 6:56 am
Forum: Modular Forum
Topic: Definitive vibrato.
Replies: 10
Views: 3670

Re: Definitive vibrato.

Thanks for the info...yes this is basically how I'm using vibrato now.

Out of curiosity how do use the delay VCA ...Lin or Exp position ?

PS....that's a good way of archiving patch connections .
by Rarecomponentadsr
Wed Apr 19, 2017 10:17 am
Forum: Modular Forum
Topic: Definitive vibrato.
Replies: 10
Views: 3670

Re: Definitive vibrato.

Thanks all....

I guess getting the vibrato I want will be a combination of different things.
by Rarecomponentadsr
Tue Apr 18, 2017 7:23 am
Forum: Modular Forum
Topic: Definitive vibrato.
Replies: 10
Views: 3670

Re: Definitive vibrato.

Thanks E...I wondered if anyone had any other method ...I still don't seem to get the "sweet" vibrato I'm looking far. I've used the LFO into Eg controlled VCA and out again to obtain delay and also EG into LFO controller to vary speed and depth (also taking this signal into the filter as ...
by Rarecomponentadsr
Sun Apr 16, 2017 4:13 pm
Forum: Modular Forum
Topic: Definitive vibrato.
Replies: 10
Views: 3670

Definitive vibrato.

Just add LFO to CV...? I'm routing LFO sine from a 921 into a CP3 then onto the CV control input of the 921a ... I've never been totally happy with this . On You Tube clips, I I sometimes hear a 'human type singing' vibrato on simple waveforms which seem to have quite a depth without sending the bas...
by Rarecomponentadsr
Thu Feb 23, 2017 8:28 am
Forum: Modular Forum
Topic: MIDI velocity controlling VCA output.
Replies: 2
Views: 1643

Re: MIDI velocity controlling VCA output.

Many thanks MC...now I recollect seeing this method before..I'm sure this is going to give me what I'm looking for.
by Rarecomponentadsr
Tue Feb 21, 2017 6:48 pm
Forum: Modular Forum
Topic: MIDI velocity controlling VCA output.
Replies: 2
Views: 1643

MIDI velocity controlling VCA output.

I'm finding that trying to control volume via midi velocity out from midi to CV unit is not very effective. I'm taking a patch lead from the midi velocity out to the input of an attenuator and then another patch lead from attenuators output to the control input of a the VCA. The attenuator is there ...
by Rarecomponentadsr
Wed Dec 21, 2016 8:46 am
Forum: Modular Forum
Topic: MOOG 15 emvelope problems
Replies: 1
Views: 1196

Re: MOOG 15 emvelope problems

Check your power connections to the 911's and also check the Gate connections both from your keyboard and your 911's ...try shorting the Gate connections at the 911 with a screwdriver to make sure everything there is correct.
If they don't trigger it will be a power connection problem.
by Rarecomponentadsr
Fri Jul 01, 2016 6:30 pm
Forum: Modular Forum
Topic: Large round trimmer
Replies: 3
Views: 1451

Large round trimmer

As a follow up to my first query does anyone have any information on the large silver coloured round trimmers as used on the 904a ?
I think they are still available as I've seen them on recent designs but cannot make out the name or manufacturer .
by Rarecomponentadsr
Thu Jun 30, 2016 8:41 pm
Forum: Modular Forum
Topic: PCB trimmer/pre-set
Replies: 4
Views: 1643

Re: PCB trimmer/pre-set

Many thanks for this excellent info.

Good to know the name and manufacturer of these parts.

Trawling the web they are indeed still available at reasonable prices....good stuff !
by Rarecomponentadsr
Thu Jun 30, 2016 7:06 am
Forum: Modular Forum
Topic: PCB trimmer/pre-set
Replies: 4
Views: 1643

Re: PCB trimmer/pre-set

I suppose it's a purist thing really, I'm simply trying to get as authentic as possible not only to sound but also to appearance . Having seen genuine Moog circuit boards I'm particularly impressed by vintage parts. For instance I made the mistake of using 1/4 w resistors in my clones when in fact 1...
by Rarecomponentadsr
Wed Jun 29, 2016 6:05 pm
Forum: Modular Forum
Topic: PCB trimmer/pre-set
Replies: 4
Views: 1643

PCB trimmer/pre-set

Does anybody know which company made the variable trimmer pots which are found on the modular PCBs
(the blue and browny types) and if they are still available anywhere ?