Diezel VH4 Deep Inductor?

[psychepool]

Hello.
I found a Diezel VH4 circuit on the web, and I'm thinking about making it.

I do not intend to make the circuit configuration as it is. In particular, I plan to make the switching a little more concise.

Let me ask you a question,
If you look at the power amplifier circuit, the inductor is connected to the deep pot and faces the ground.
What specifications can I use for this inductor?
I'm not familiar with inductors so I'm not sure what to consider.
The circuit diagram shows only the inductance and no other specifications are written.
I'd like to use something that is as small as possible.


And a few more questions,
I couldn't find a clone of Diezel VH4 on the web, has anyone tried making a clone with this circuit?
I want to check the reliability of this schematic.

And I'm planning to implement switching with two footswitches.
Footswitch 1 : 1ch <-> 2,3,4 channels
Footswitch 2: 2ch <-> 3,4ch
In this way, I plan to implement it in a clean/dirty, crunch/lead configuration through two footswitches.
Channel 4 is going to be operated with the toggle switch on the panel. I'm considering just omitting it.
The switching medium is going to be LED+CDS, but since there are many switching points, it seems to go through several LEDs/CDSs in series no matter which channel is used.
Will there be any Tone Loss issues?


Please answer. thank you

[roberto]

The right forum to find Diezel VH4 cloners (it has been done many times) is sloclone.

The depth with inductor is a bandpass, so you don't have to copy their value, but find the value that matches your speakers and cab.
I'd personally switch to a more common depth circuit, to be able to fit different cabs without modifications, but if you want to keep the inductor, start with 500 mH.

[psychepool]

The right forum to find Diezel VH4 cloners (it has been done many times) is sloclone.

The depth with inductor is a bandpass, so you don't have to copy their value, but find the value that matches your speakers and cab.
I'd personally switch to a more common depth circuit, to be able to fit different cabs without modifications, but if you want to keep the inductor, start with 500 mH.

Thank you for answer. I'll look around that forum.

What I asked about the specs of inductors are specs other than inductance.(Voltage, amps, etc.)

For example, in the case of a capacitor, the withstand voltage must be considered in addition to the capacitance, and in the case of a resistor, the watt must be considered in addition to the resistance,
In the case of inductors, the question was whether there are other values to consider besides inductance.

However, from your answer I also learned that the inductance also doesn't necessarily have to be a fixed value in the circuit.
Thank you.

[roberto]

Consider 500-600mH and 15 Ohm circa, like wah inductors.
It will cost less to play with capacitors to tune the depth to your cab.

[psychepool]

Consider 500-600mH and 15 Ohm circa, like wah inductors.
It will cost less to play with capacitors to tune the depth to your cab.

Thank you I will take note.
I think it's the first time I've seen a circuit that uses an inductor for tone control in NFB. Is there any advantage compared to capacitors?

[roberto]

You need a capacitor, and you have a capacitor.
It's just a band pass LC instead of a low/high pass RC.

I highly prefer the RC version, because you can use it with whatever cab and get the depth working properly.
If the resonance of the speaker/cab is out the of LC filter, you get (almost) no depth effect.