The Range - Germanium Treblebooster kit

Item number: 185

Category: Booster


starting from 19,50 €

Final price incl. VAT, plus shipping (mitttel)

Available now!

Shipping time: 3-7 Working days


The Range is a treblebooster based on the legendary Dallas Rangemaster. It has the same features but some addons. It works with a germanium PNP transistor and uses a toggle-switch to switch between different input capacitors which makes it more versatile. It also features negative ground, so you can use the power-supply you use for your ofter effects.

This kit contains all parts you need to build a fully functional effect pedal.

Not included in the kit, but also very good to have:

  • Aluminium enclosure: select one above.
  • 9V battery or DC power supply
  • 1 nice knob for the potentiometer, for 6.3mm shaft
  • Decal, transfer or transparent sheets for labeling

Instrument: Guitar
Effect-Type: Boost

Build documents

Installation guide: Installation guide

Schematic and pcb: Schematic

Parts list (BOM): Parts list

Here are the docs for the previous version:

Schematic and pcb: Schematic

Wiring: Wiring layout

Parts list (BOM): Parts list

Ratings (83)

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Entries 41 – 46 of 46
5 from 5 Powerful boost, good treble, relatively easy build

This kit is relatively easy to build (although my friend did all the soldering). The instruction is perhaps not 100% for this specific unit, but close enough to not cause problems.
I chose top mounted version, so the cables that came with were not quite long enough. But you can either join two of them and isolate with heat shrinking, or use your own longer cable.
Also the in/out jacks got quite close to the metal in the corner but some small piece of isolation tape fixed that.
I chose the for the Boost pot. It is a little bit sensitive to scratching, but has a gloss to it.

I put in a 4-pin inline socket ( for the transistor so I could have options left for the future.
I also soldered (myself!) the transistor in a 3-pin inline socket ( so that I can easily swap between transistors to try different ones. The double socket height is not a big issue if you carefully fold the transistor about 90 degrees down, then it fits.
The stock/default one AC125, 70-79 sounds nice.
I also tried AC116, 80-89 which is a little bit thinner/less volume boost which is not all that bad since the boost is very powerful. The AC116 is also perhaps a little bit more natural, but that is subjective.
AC122, 90-99 is more powerful than the others, in a nice way.
AC125, 90-99 is also more powerful compared to the others, nice at first but can get a little bit too much.

We added a 3-pin inline socket for the C2 capacitance (3,3nF) and I also got a 4,7nF one to swap between. I was afraid the end result would be too trebly for my taste. It turned out that the 3,3nF was the better option, but I was happy to make use of the socket to try out variations.

Result and playability:
The result is more than I hoped for!
It is a bit more powerful and has more volume on tap than expected, but that is not a bad thing.
Unity is at 10:00 to 11:00 depending on which transistor I put in from the 4 listed above.
The treble switch settings with top being quite warm and not very much treblier makes it more of a useful and powerful Volume Boost.
The middle setting makes it as trebly as I like it to be at the most.
And the down setting (supposed to be closest to the original RM) has a very nice tone to it that I prefer most although I like to flip between them.
I put it very first in my chain and that seems to be a good spot.
Full boost with humbuckers breaks up the clean channel of the amp very nicely, even if it is a little bit loud for bedroom level.

Very nice build, lots of tweakability if you want and a great final result.
Das Musikding clearly delivers! (And that should come as no surprise.)

., 19.08.2021
5 from 5 Iron Man

Great pedal and easy to build even if you are beginner.
In my ears AC125 - hFE=80-90 sounded great.
Three position : full, treble and classic, so more variant here.
Deliver was fast and contained all the parts you need.
I named it Iron Man Treble Booster :)
5/5 Good job Musikding.

., 03.11.2021
5 from 5 Très bien

Les composants et PCB sont de bonne qualité. Facile à monter, même pour un néophyte.

., 12.12.2021
5 from 5 Great booster

Easy to build booster pedal, the electronics did not take up a lot of space. I put it inside my guitar so it can be easily flipped on for playing a solo. Documentation is clear and understandable.

., 03.01.2022
4 from 5 cool

premier essai dans lassemblage et résultat impeccable montage facile. cest cool de pouvoir monter et personnaliser des pédale à ce prix la. je personnalise avec les couleur de led et jimprime sur les papier décalco.
Une couche de vernis par dessus pour finir. Rendu audio meilleur quavec des multi-effets.

., 03.02.2022
5 from 5 Really good effect pedal

I built this pedal and used it in front of my marshall 5 w tube clone. I love it!!!
thanks Musikding.

., 16.02.2022
Entries 41 – 46 of 46

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