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My last one: Traynor TS-60B Preamplifier. It is similar to the TS-50B. The Preamp is well known as "Rusty Box". But this one comes with an extended 4-band EQ (switchable) and a DI-Out:

Now with enclosure:

1st Prototype Ampeg B-100R Preamplifier: I used the factory schematics to draw a pcb, that fits into a 1590BB.

I dont use the Autorouter function. I draw the traces „by hand „

No, I am not an Electronic Engineer. I am a "Hydraulic" Engineer... (I dont know the exactly designation). The holes for the rotary pots and the slots for the sliders were milled with a cnc milling machine.

I really like JohnK's pedals! As I saw his MonoBlock I got the Idea to use sliders instead of rotary pots. I used this schematic: Klick I had the PCBs made locally. But you can made pcbs also online: Klick

No kit. I used the original schematics and created a pcb with eagle.

My new one: It is a Traynor Mono Block II Preamp in pedal format.

Yes, my own PCB. Schematics from i-net. Sounds is a little bit different to the TransBoost. Here is the enclosure:

Another overdrive with a transformator (test setup):

I am a big "fan" of Gallien-Krueger amps. That are my favourite amps. But I am also a big fan of tube amps. I've been testing various overdrives for twenty years. But I haven't found the perfect OD for myself yet. Recently I've been testing pedals with transformers. They could be the right way. The 800RAIL sound good. A lot of OD-variations are possible. But it doesn't sound 100% like an 800RB.

Here is another talkbass project:

I created a PCB in Eagle using existing schematics. The PCB was made by a local company.

My version of the TransBoost. An overdrive based on a transformer circuit.

My Version of a Fairfield Barbershop Clone:

First I engrave the font with a CNC milling machinen like this: Then I use powder paint / powder coating. After that I take fine sand paper 320...

My version of a rog ginger:

My first one: sonnßeta It is a Sunn Beat Bass Preamp in pedal format. I used an existing schematic from dirtbox layouts and create a pcd that fits in a 1590B enclosure