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Hi Guys,

I built a couple of Madbean pedals a while ago (3 x Neotrino's and a Dirt Box) and have had the 2011 version Chunk Chunk boards since then.

I notice that the new Chunk Chunk is significantly different in layout. Whats the differences?

HI,

The Chunk Chunk has a 1N4004 as reverse polarity protection. Could I sub this with a 1N4001?

As I see it the difference is the voltage 50v (1N4004) as opposed to 30v (1N4001).

I cant get 1N4004 in UK.

I've ordered a couple of Madbeans Chunk Chunk boards today. Winters coming and I'm going to need something to keep me occupied during the long dark nights.

I already have a Biyang Metal End King distortion Pedal, but it doesnt  give me that ripping afterburner type distortion that is typical of high gain amps like the Mesa Boogie rectifiers (like I heard at the Alterbridge gig in October last year).

The other 2 Madbean pedals I've built are working well, so I guess its time to go through my rite of passage.

Will get my bits from Dr Tweak or Farnell here in the UK.

Thats is all.......   

Hi boys and girls,

I've just finished Neutrino number 2 to the Black specification using a 4558 op amp.

Its not got as much gain as the bright version that I built, and strangley it seems to be brighter - not sure about that. Although I think I may have used the Black version C6 value in the bright Spec pedal. That one also has the LM1458 IC.

I cant do a side by side comparison as I let my mate borrow it for his PRS custom 22 and Mesa Boogie Mark 3. I've spoken to him tonight and I might have trouble getting it back.

The sound is very old school, maybe a bit fuzzy but not a full on in your face overdriven distortion. Very 1960s, I'm trying to put my finger on what it reminds me of but I cant place it.

Decided to leave the enclosure as is, the bare metal 'dirty' finish is somehow appealling.

GOt my Neutrino assembled but I get no tone when its switched on. Bypass is good  and when switched on LED comes on but nothing else.

I had to gerry rig the C3 and C5 as by mistake I bought a 10mm pitch package as opposed to 5mm.

Any suggestions?

Hi,

Am speccing up a build and the parts list has a quartet of 2n5089 transistors. These arent available here in the UK although I can get the 2n5088G.

My question is what would be the effect if any of using this transistor over the the one in the build specs?

http://www.farnell.com/datasheets/79205.pdf 


Data sheet is in the link.

I've just got up, checked my emails and I have a Paypal shipping notice from Madbean.

My boards are on the wa-ay
My boards are on the wa-ay
My boards are on the wa-ay

Guys,

Just been reviewing the build reports, and I dont know know whether its just me, but everyone seems to be building Neutrino pedals.

So that has me thinking, what is the most popular pedal/project on here?

Ok the list of projects is extensive, but it's missing a noise gate. Do you have any plans to do one?

Hi all,
As promised in a couple of other threads here's my Neutrino build report so far. This is the burst variant, the Black version will follow just as soon as this one is complete, as I already have the bits (just no boards - You picked a fine time to move house Brian).

Any how, my previous gadget building comes from assembling on-board glo-drivers for RC model airplanes  - the optoglowII as an example. I'm not an electronics guru, I can (thanks to my time in the army reserves a long time ago,) handle a soldering iron though.

I have sourced the bits from 3 different suppliers, although now that I know about Faith Healer on ebay I'll probably just use him and Farnell for the electronics.

You'll notice from the pictures that I am using servo cable for wiring the pots. Its dead easy to get hold of for me and is just the right size. It also aids in getting the connectivity right first time. I'm also using some alternative coloured servo cable (stripped into individual conductors), Brown orange red, for some of the other connections.

The labels are from an office type Brother label printer that was liberated from a former employer.

Any hoo here are the pics

OK,

I'm new to pedals, but I've been messing with electronic gadgets for a while.

I'm in the process of building a Burst and Black Neutrino pedal and here's where I got my stuff.

Farnell - all the PCB mounted components, including the pots

Maplin - the Enclosure and the 1/4" jacks, LED holder, Pot knobs

Faith healer - Ebay Shop - 9v socket and switch.


The minimum qunatities from Farnell might seem high but it pays to buy them like this, as you end up with enough bits for loads of projects.


Hope this helps other DIY Pedal Newbs in the UK.


Andy

HI,

I'm having a real problem getting a PSU socket that switches between drycell and line power. The socket I bought (from Maplin) has a steel shell, and although it would be OK for centre pin positive applications, all stomp boxes are centre pin negative. This means that when I connect a PSU to the socket, the shell get's +9v. This would result in a short between the case (ground) and the incoming +9v (wouldnt it?). I'm about to send for a non-switched socket, but this will mean i have to modify the layout so that I cant use an internal dry cell.
Anyone know where I might get a socket that is switched but doesnt have a steel shell? UK suppliers preferred.

Hi,
<Newb alert!!!!!>

I've had difficulty sourcing a 5K Linear pot for the Neutrino pedal. The closest I could get was 10K. Is there any way to reduce the value of the pot. I seem to remember seeing something about placing a fixed resistor of the same value as the pot across legs 1 and 3.

Is this right or am I having a brain fart?


Cheers

Andy

Hi,

I have just enrolled on this forum, and have ordered a couple of Neutrino boards (at the weekand). The components are already starting to arrive from my local suppliers, and I'm keen to crack on with the builds.

How long till you fulfill the order please?