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...

Thank you Vitallka for agreeing to the publication of my PCB layout.
Ready-to-print PDF-files:
SprintLayout6.0 file: Gerber & Drill file:

I cannot find a schematic anywhere, can you post it if you have one?

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...

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...

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....

For a more detailed error analysis, it is essential to see the current circuit.

For how many tubes do you need the heating voltage generation?

In my opinion, this mosfet voltage regulator circuit is not suitable for a small voltage difference between input and output.

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.

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?

Edit: Values corrected

First stage 5E3 using 6N17B:

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:

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...

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?

Connect drain-source from Q6 and see if the phaser signal then comes out.

Thanks for sharing, I like the sounds.

Insert a 7809 voltage regulator with the usual parts around between the plug-in power supply connection and your circuit.