Search found 196 matches

by karul
23 Apr 2020, 02:30
Forum: Amplifiers
Topic: Roland PA-250 [guts]
Replies: 9
Views: 3651

Re: Roland PA-250 [guts]

No need to apologize.

PA 80-150-250 Service manual:
https://drive.google.com/file/d/1KbU4QS ... NPW9lMhX6s
by karul
29 Mar 2020, 03:32
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Anasounds Element Spring Reverb
Replies: 1
Views: 436

Re: Anasounds Element Spring Reverb

https://anasounds.com/element-spring-reverb/

Accutronic have small tank, but it's not the same as the one they used for the “Le Bon“. Le Bon is slightly bigger.
http://www.accutronicsreverb.com/main/? ... 01_08.html
by karul
07 Feb 2020, 18:14
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Behringer - FS112V footswitch
Replies: 0
Views: 630

Behringer - FS112V footswitch

This one is blue, part of Behringer V Amp2. It has 2 momentary (non-latching) switches, momentary micro push buttons.
by karul
07 Feb 2020, 17:54
Forum: Amplifiers
Topic: Randall RG100G3 footswitch
Replies: 1
Views: 378

Re: Randall RG100G3 footswitch

amp part
by karul
07 Feb 2020, 17:50
Forum: Amplifiers
Topic: Randall RG100G3 footswitch
Replies: 1
Views: 378

Randall RG100G3 footswitch

4 way footswitch for Randall RG100G3

switches are SPDT latching type
by karul
28 Jan 2020, 21:10
Forum: Davidoff Library
Topic: The Tube Screamer: A Short History
Replies: 6
Views: 1181

Re: The Tube Screamer: A Short History

Same as for 250k and 220k. I wasn't happy with their choice of pedal builders too, but still I like all their videos from that series “A short history", check that channel - Five Watt World. I think they are worth watching, that was the reason I've shared the video.
by karul
13 Nov 2019, 22:50
Forum: Pedal Debugging & Troubleshooting Support
Topic: Experimenting with OCD = weird result
Replies: 28
Views: 499

Re: Experimenting with OCD = weird result

I guess this is the schematic. There are several versions.
http://pedalparts.co.uk/docs/Disorder-V2.pdf
by karul
12 Nov 2019, 18:58
Forum: Pedal Debugging & Troubleshooting Support
Topic: Experimenting with OCD = weird result
Replies: 28
Views: 499

Re: Experimenting with OCD = weird result

Probably not, it's impossible to tell without schematic.
by karul
12 Nov 2019, 13:02
Forum: Pedal Debugging & Troubleshooting Support
Topic: Experimenting with OCD = weird result
Replies: 28
Views: 499

Re: Experimenting with OCD = weird result

Also check your soldering temp. Maximum lead temperature for 2N7000 is 300°C. Make sure they are ok, too.
by karul
11 Oct 2019, 16:17
Forum: Modern Stompbox Effects (1975 - ...)
Topic: MXR M87 Bass Compressor Demo
Replies: 20
Views: 12081

Re: MXR M87 Bass Compressor Demo

both have GY label, but it's different package
by karul
28 Sep 2019, 01:22
Forum: Boutique Stompboxes dissected...
Topic: Nordstrand - 3b preamp [traced]
Replies: 37
Views: 6003

Re: Nordstrand - 3b preamp [traced]

you can find them on the older version. they are connected to the mid pot, on the "larger cap", 120n i guess
https://cdn.shopify.com/s/files/1/1941/ ... wiring.jpg

https://nordstrandaudio.com/pages/pream ... schematics
by karul
28 Sep 2019, 00:45
Forum: Boutique Stompboxes dissected...
Topic: Nordstrand - 3b preamp [traced]
Replies: 37
Views: 6003

Re: Nordstrand - 3b preamp [traced]

pot values for 3b 4a. you can find them for the other versions too.
https://cdn.shopify.com/s/files/1/1941/ ... _epoxy.pdf
by karul
27 Sep 2019, 17:48
Forum: Boutique Stompboxes dissected...
Topic: Nordstrand - 3b preamp [traced]
Replies: 37
Views: 6003

Re: Nordstrand - 3b preamp [traced]

pot caps: photos + you can find the values in the wiring diagrams

mid freq switch: 33n & 120n
tone pot: 47n

https://nordstrandaudio.com/pages/pream ... schematics

different versions
https://nordstrandaudio.com/products/3-band-preamps
by karul
26 Sep 2019, 21:07
Forum: Boutique Stompboxes dissected...
Topic: Nordstrand - 3b preamp [traced]
Replies: 37
Views: 6003

Re: Nordstrand - 3b preamp [traced]

C8 - 100p
C9 - 390n
C12 - 100n or 100p

* there are some cap(s) soldered on the pots
by karul
26 Sep 2019, 20:58
Forum: Boutique Stompboxes dissected...
Topic: Nordstrand - 3b preamp [traced]
Replies: 37
Views: 6003

Re: Nordstrand - 3b preamp [traced]

wiring color code

from the spec:
Overall gain is 0 to 15db by a trim pot on the circuit board.
Bass +/- 12db @ 50Hz
Treble +/- 12db @ 4khz
Midrange +/- 12db @ 1k
by karul
26 Sep 2019, 20:44
Forum: Boutique Stompboxes dissected...
Topic: Nordstrand - 3b preamp [traced]
Replies: 37
Views: 6003

Re: Nordstrand - 3b preamp [traced]

C9 - 390n