Search found 82 matches
- 27 Jul 2018, 04:23
- Forum: Electric Guitar/Bass Wiring
- Topic: Guitar Frequencies
- Replies: 3
- Views: 9457
Re: Guitar Frequencies
enjoy !
- 27 Jul 2018, 04:20
- Forum: Amplifiers
- Topic: Awesome tube preamp project: Top Drive
- Replies: 36
- Views: 19695
- 23 Dec 2016, 01:15
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Diezel VH4 Pedal [schematic]
- Replies: 284
- Views: 168996
Re: Diezel VH4 Pedal [Gut shots] [schematic]
A simple way to check what the zener is without removing it. POWER OFF the unit Get a 9V battery, connect battery negative to the anode of the zener, connect the cathode of the zener to the 9V battery positive THROUGH A 1k RESISTOR. Using a multimeter, measure the voltage across the zener I would gu...
- 11 Dec 2016, 23:47
- Forum: DIY Projects
- Topic: Decompression Overdrive - another approach to diode clipping
- Replies: 8
- Views: 1961
Re: Decompression Overdrive - another approach to diode clip
Hi Sam I built this a few weeks ago & our guitarist tried it out. He loves it :). He had the vero prototype unit i built initially (without a box) for a minute or two & said to me "box it up, this is great" I added a tone control on the output (SWTC2) Stupidly wonderful tone contro...
- 03 Aug 2016, 00:12
- Forum: DIY Projects
- Topic: JCM800 recording preamp
- Replies: 3
- Views: 2306
Re: JCM800 recording preamp
apologies, i had D9 and D10 the wrong way around on the pcb overlay
This is corrected in the attached file
Please ignore the zip file in the first email
This is corrected in the attached file
Please ignore the zip file in the first email
- 02 Aug 2016, 07:07
- Forum: DIY Projects
- Topic: JCM800 recording preamp
- Replies: 3
- Views: 2306
JCM800 recording preamp
a preamp i built to directly record guitar into my Digital Audio Workstation I dont like the free vst plugins, so this was an alternative to micing up a guitar amp You could also use it straight into a power amp I modified our guitarist's little Marshall MG30FX and added a line in 1/4" jack. Th...
- 14 Sep 2015, 06:15
- Forum: DIY Projects
- Topic: Baja Trembulator schematic, board layout and circuit board [documentation]
- Replies: 166
- Views: 53583
Re: Baja Trembulator schematic, board layout and circuit boa [documentation]
Hi Baja Built this one up for our guitarist, its very nice. Thanks for the project. I added the switch across the calibration pot to go from smooth trem to harsh trem. One thing I found, and I want to point it out here in case others have the same problem, is the Vactrol. I used a Siliconix NSL-32SR...
- 10 Aug 2015, 06:13
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: A new vacuum tube PSU design
- Replies: 4
- Views: 1312
Re: A new vacuum tube PSU design
one of these of any help to you ?
- 09 Apr 2015, 02:15
- Forum: DIY Projects
- Topic: SVS Tube Distortion
- Replies: 16
- Views: 3705
Re: svs tube distortion
looks a lot like this
https://www.freestompboxes.org/viewtopic ... 73&t=26026
https://www.freestompboxes.org/viewtopic ... 73&t=26026
- 17 Jul 2014, 06:30
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Jet City - Jettenuator [schematic]
- Replies: 34
- Views: 23002
Re: Attenuator [schematic]
The external speaker must be used, so all these resistors are in series with the speaker. Simple resistor voltage divider. The attenuator is not a dummy load box, however, if you plugged a shorting jack into the speaker out 1/4" socket, or just connected the tip switch to 0V (connected TN to S ...
- 02 Jul 2014, 06:58
- Forum: Amplifiers
- Topic: AGUILAR DB 750/751
- Replies: 4
- Views: 3696
Re: AGUILAR DB 750/751
Power amp power supply rails are +/- 100VDC on this sucker
- 02 Jul 2014, 06:44
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Need help fixing butler bluetube pedal
- Replies: 8
- Views: 4291
Re: Need help fixing butler bluetube pedal
various butler schematics
- 21 Nov 2013, 01:36
- Forum: DIY Projects
- Topic: Modern SLO 100 emulator
- Replies: 30
- Views: 22206
Re: Modern SLO 100 emulator
found this somewhere, its the same basic sch, but with some changes done
- 18 Nov 2013, 04:50
- Forum: Printed/Published Online Designs
- Topic: DI BOX Veroboard
- Replies: 2
- Views: 1810
Re: DI BOX Veroboard
or these....
- 18 Nov 2013, 04:48
- Forum: Printed/Published Online Designs
- Topic: DI BOX Veroboard
- Replies: 2
- Views: 1810
Re: DI BOX Veroboard
any of these..... some have lots of bells & whistles you can take out
- 29 Aug 2013, 06:01
- Forum: Amplifiers
- Topic: Power Amp Simulator
- Replies: 6
- Views: 5350
Re: Power Amp Simulator
i built a valve pre with the runoff groove "condor" for the cab sim, sounds very nice direct into an audio interface details here https://www.freestompboxes.org/viewtopic.php?f=13&t=22627 clean sounds very nice & when the gain is cranked on the hi gain mode, i got searing smooth ov...
- 22 Aug 2013, 04:25
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: T-Rex - SQUEEZER [schematic]
- Replies: 19
- Views: 14077
Re: T-Rex SQUEEZER schematics and guts [schematic]
also, as the output is connected to pcb 0V, a simpler design, just using an inductor would be the Bajaman blackstar HT power supply, or the 555 based supply, just be sure that "noisy" power supply 0V lines are connected at one point only with the clean signal 0V for the analague circuitry,...
- 22 Aug 2013, 04:17
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: T-Rex - SQUEEZER [schematic]
- Replies: 19
- Views: 14077
Re: T-Rex SQUEEZER schematics and guts [schematic]
any standard type of "transformer" ferrite will do Input volts = 15VDC approx when transistor is turned on, as this is not a flyback converter, we are doing a hard switching forward converter, so all we need to do is look at input & output volts to get the turns ratio. 15VDC in, output...
- 26 Jun 2013, 01:47
- Forum: DIY Projects
- Topic: Valve preamp pedal
- Replies: 1
- Views: 1200
Valve preamp pedal
Here is my small contribution..... A friend with a home studio was not satisfied with the software amp models that he had. While a clean sound was "ok" the digital overdrive in these software models did not really cut it. so i built this valve preamp for him. the circuit is based on variou...
- 24 Jun 2013, 00:32
- Forum: Davidoff Library
- Topic: BIG JAM schematics
- Replies: 28
- Views: 72257
Re: BIG JAM schematics
i have saved copies, am i allowed to post them here ?
alternatively http://music-electronics-forum.com/t33338/
alternatively http://music-electronics-forum.com/t33338/