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Unfortunately, the tip of my cheap soldering station (the Musikding one, that is good enough for me) was worn after some years, the tip is broken. Finally I bought a new one, from Musikding, but it's not sharp like the original one, it's a bit round, like a used pencil. I think I have to wait to...

Comparing the layout above here we have: all the 100nF are, instead, 47nF. Ceramic caps should be ok. Electrolytics are: 100uF, correct, while the 10uF is here a 47uF. I think the Drive pot is the B50k, and the Volume pot is log. I see a diode... a 1N4001 between 9v and ground? It's mentioned in...

I don't know where I got the information "tantalum caps are bad for audio application", but I think I got it more than once, in several forums maybe, often where people asked right this question. I avoid it because the cost, but even because several guys advised against it, maybe somewhere, I...

I never used tantalum caps because I always read about ti that are not so goo for audio, I used only electrolytic, even for value like 0.47uF-2.2uF, if the layout or the schematic indicates it. Of course, if I want to do better things I use film caps until the 2.2uF, if I need higher value I use...

Some caps I took away from my Boss MT-2 look like that.

I used to buy cheap electrolytic caps from Tayda. I prefer to use low impedance as filter. Just because the theory. My old Boss PSU since two years, maybe, it's a bit ruined (the cable a bit worn and frayed) and sometime I got whine noise issue with some circuit, often fuzz pedal. I noticed that...

Unfortunately, not a good service for a pair of reason, at least. In my order I included some 100uF Panasonic FM, but an e-mail informed me those are in back-order. I asked about timing, but Banzai answered me «our supplier will not have stock for about a year». When I asked for an alternative...

You can swap them, the pinout should be the same, but this doesn't mean these transistors are the same. 2N5457 has less gain than J201.

I afraid I confuse the pedal. The Arche Boost is based on ThorpyFX Heavy Water! :oops: Those diodes are sort of clipping, thought the orientation is unusual.

Those transistor stages are just simple buffers, no gain. So I'd say that the Hfe are not so critical in this case.

I'd say it's just for the protection from the inversion of the polarity power supply. I guess you could totally excluded it or use another diode: a common 1N4148 or a 1N4001 is used in other circuits. We can wait other opinions, but I'm pretty quite about the rule of this component.

It's been a while Musikding doesn't have anymore Panasonic electrolytic capacitors and now Nichicon, too. It's a very difficult for some of us build pedal today. All costs are increased and some components are hard to find!

I'm building the Revv G4 (on stripboard) and it sounds really good. I like the Triple Wreck, but the G4 has a large usable range of gain setting to play rock and metal. It's less boomy than the TW, but it has a versatile eq, too. I also like the Tight Metal and its, noise gate is very useful...

Why the output jack is made of plastic? It's have to do something with the ground?

There's a new shipping option, at least for Italy: Duty Tax & VAT & Shipping Prepaid DDP - 2 to 4 days delivery - You won't pay anything more $33.50 The 33,50 $ depends from the quantity of the materials and the weight, I tried to fill the cart with causal parts and it could be about 23 $ for...

I wish it would happen to me, too.

Once I received two bags with three 1w resistors while I ordered two pair of three knobs. And on the label was singed the knobs. They refund me the cost of the knobs, but I think I never will use those resistors I still have.

Actually, today there's no more the limit of the 22 € in Europe for the custom fee. That's one of the problem here. Because we can't calculate all the DHL fee and taxes, probably I'll use the Thailand Post, under 150 € (at least in Italy) I'll not pay the custom fee, but just the Italy VAT...

Ok, so it's enough keep the volume under 3/4 if I'll use a 19v PSU. Maybe I could try to build a 12v regulator circuit, just to to build it and see how the TPA3118 will sound with the smaller speakers. I have to wait to make some money to order the amp and the PSU.

My only 9v PSU is an old Boss red label, but it's only 300mA. Is the TPA3118 max current draw 50mA? I'm not sure. To get 12v I should use extra circuits or I have to buy a 12v PSU, but in this case I prefer to buy a 19v laptop PSU. I prefer higher wattage to benefit better the amp. My speakers...