Search found 1710 matches
- 17 Apr 2024, 20:11
- Forum: DIY Projects
- Topic: OBM-1 bass overdrive pedal on 2n7000 transistors
- Replies: 8
- Views: 914
Re: OBM-1 bass overdrive pedal on 2n7000 transistors
Hi Vitallka, please run a DRC-Check of your file, there are some faults.
- 16 Apr 2024, 11:54
- Forum: DIY Projects
- Topic: OBM-1 bass overdrive pedal on 2n7000 transistors
- Replies: 8
- Views: 914
Re: OBM-1 bass overdrive pedal on 2n7000 transistors
Hello. I'm running out of ideas for bass pedals, so I thought I'd come up with something. In principle, I wanted it to be on field-effect transistors 2n7000, and not on operational amplifiers. As a result, the pedal received 4 controls and one switch (it controls the midrange cut). There is also an...
- 14 Apr 2024, 08:17
- Forum: DIY Projects
- Topic: OGM-3 guitar overdrive (4 x 2n7000)
- Replies: 4
- Views: 654
Re: OGM-3 guitar overdrive (4 x 2n7000)
Thank you Vitallka for agreeing to the publication of my PCB layout.
Ready-to-print PDF-files:
SprintLayout6.0 file: Gerber & Drill file:
Ready-to-print PDF-files:
SprintLayout6.0 file: Gerber & Drill file:
- 10 Apr 2024, 08:08
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Help ! Danelectro Cool Cat Vibe Speed knob suddently acting weird !
- Replies: 3
- Views: 978
Re: Help ! Danelectro Cool Cat Vibe Speed knob suddently acting weird !
I cannot find a schematic anywhere, can you post it if you have one?
- 08 Apr 2024, 10:32
- Forum: Davidoff Library
- Topic: D.S. Gibbs & I.M. Shaw, Tone Booster, in: Everyday Electronics, Sept. 1978 🇬🇧
- Replies: 5
- Views: 1222
Re: D.S. Gibbs & I.M. Shaw, Tone Booster, in: Everyday Electronics, Sept. 1978 🇬🇧
Here for the fans of vintage pedals. PCB Dimensions 55 x 55 mm EE Tone Booster Layout.JPG Ready-to-print PDF files: EE Tone Booster Components Side.pdf EE Tone Booster Solder Side.pdf SprintLayout6.0 file: EE Tone Booster Layout6.zip Gerber & Drill files: EE Tone Booster Gerber & Drill F...
- 03 Apr 2024, 23:40
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
I have noticed that the v1b grid is affected with both treble and volume pot and voltage goes from - 300mv to - 1.5v Does the voltage change equally at the cathode of V1b? Now with treble past noon and volume from noon it oscillates. What could be the issue? Hard to say. This could be a problem wit...
- 31 Mar 2024, 00:10
- Forum: Modern Stompbox Effects (1975 - ...)
- Topic: Wah Man WM 1960
- Replies: 0
- Views: 349
Wah Man WM 1960
The wah man WM 1960 is a Chinese pedal whose circuit is based on the Dunlop Cry Baby GCB-95 Wah. WahMan Top View.jpg WahMan Cover.jpg WahMan Inside Shot.jpg WahManPCB Shot.jpg Wah Man WM1960.jpg Wah Man PCB Layout.JPG Ready-to-Print PDF-Files: Wah Man PCB Components Side.pdf Wah Man PCB Solder Side....
- 30 Mar 2024, 00:32
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
For a more detailed error analysis, it is essential to see the current circuit.
- 18 Mar 2024, 17:47
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
- 17 Mar 2024, 10:04
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
For how many tubes do you need the heating voltage generation?
- 16 Mar 2024, 09:18
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
In my opinion, this mosfet voltage regulator circuit is not suitable for a small voltage difference between input and output.
- 15 Mar 2024, 14:55
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
The link is to a picture of the step-up regulator.
What is the circuit of the voltage regulator for the heaters?
Please attach a sketch of the schematic.
What is the circuit of the voltage regulator for the heaters?
Please attach a sketch of the schematic.
- 14 Mar 2024, 21:26
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
The picture of the voltage regulator doesn't help much to find out anything.
Do you have more information about it, perhaps the circuit diagram?
What is the input voltage of the regulator?
Does the input voltage remain the same under load or does it drop?
Do you have more information about it, perhaps the circuit diagram?
What is the input voltage of the regulator?
Does the input voltage remain the same under load or does it drop?
- 11 Mar 2024, 20:18
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
Edit: Values corrected
First stage 5E3 using 6N17B:
First stage 5E3 using 6N17B:
- 10 Mar 2024, 11:09
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: 6N17B not working [SOLVED]
- Replies: 17
- Views: 33170
Re: 6N17B not working [SOLVED]
The circuit with the 6N17B tube requires an adjustment of the components for the operating point setting as the values or the characteristic curves are very different to the 12AX7 (7025) tube.
The Fender circuit cannot simply be adopted.
See for example here:
The Fender circuit cannot simply be adopted.
See for example here:
- 20 Feb 2024, 20:00
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Dunlop Cry baby JH-1 low headroom [SOLVED]
- Replies: 8
- Views: 32094
Re: Dunlop Cry baby JH-1 low headroom [SOLVED]
You have replaced both transistors with 2N5088 types. That was wrong, because according to the original circuit diagram, the first transistor is an MPSA13, which is a Darlington transistor. I have made another circuit simulation to see more precisely. The clipping of the sinusoidal signal always occ...
- 20 Feb 2024, 12:54
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Dunlop Cry baby JH-1 low headroom [SOLVED]
- Replies: 8
- Views: 32094
Re: Dunlop Cry baby JH-1 low headroom [SOLVED]
I ran a circuit simulation and found that the shape of the output signal started to round off at about 1.3 Vpeak.
This happens at certain frequencies depending on the potentiometer setting.
Does your guitar have a pickup with a high output level?
This happens at certain frequencies depending on the potentiometer setting.
Does your guitar have a pickup with a high output level?
- 11 Feb 2024, 10:40
- Forum: Pedal Debugging & Troubleshooting Support
- Topic: Boss PH1r
- Replies: 4
- Views: 529
Re: Boss PH1r
Connect drain-source from Q6 and see if the phaser signal then comes out.
- 09 Feb 2024, 22:56
- Forum: DIY Projects
- Topic: OGBip-2 overdrive on 2n5088 bipolar transistor
- Replies: 11
- Views: 910
Re: OGBip-2 overdrive on 2n5088 bipolar transistor
Thanks for sharing, I like the sounds.
- 24 Jan 2024, 21:50
- Forum: Vintage Stompbox Corner ( ... - 1975)
- Topic: Ibanez - Overdrive II OD-855
- Replies: 12
- Views: 1705