Post-Lockdown pedal building

Alex2678

roberty said:

Had my nose in illustrator all week but stopped to box my old hoof reaper build in this new enclosure

I thought I'd have to mess with the hoof tone section to get something I like but in the end I only had to swap the order of the two transistors so the lower gain one feeds the higher gain

Also swapped the ceramic disc caps for wima/mlcc/np0

Does this say ‘Roberty boberty property’ on it somewhere? 

Excellent as your builds are, that’s my favourite aspect

roberty

@Alex2678 lol cheers, I didn't put it on this one. Feels a bit naked without it. Some of my new builds say it on the inside though

roberty

From the fine-line-been-clever-and-stupid files, this job lot vintage components, £20 from eBay 



Hoping there's some good tropical fish and carbon comp for vintage fuzz

I jumped on it when I spotted these ancient WIMA caps, it's cool that they've been making them so long, had no idea



A quick spot check reveals some low gain Si candidates for Q1s. Also some metal can JFETs which I've not seen before



ICs all seem to be logic gates, timers and counters, mostly turning up on model railway forums in searches

roberty

Nice

roberty

Couple of Easter eggs lurking at the bottom, this AC128 and a permanent fuse

Sadly the 128 measures very low on my tester, ~60 hfe

roberty

roberty said:

Nice

Bloody hell I wouldn't want to buy these from little diode, bloody bonkers

https://www.littlediode.com/components/2N4265.html

Keefy

roberty said:

From the fine-line-been-clever-and-stupid files, this job lot vintage components, £20 from eBay 



Hoping there's some good tropical fish and carbon comp for vintage fuzz

I jumped on it when I spotted these ancient WIMA caps, it's cool that they've been making them so long, had no idea



A quick spot check reveals some low gain Si candidates for Q1s. Also some metal can JFETs which I've not seen before



ICs all seem to be logic gates, timers and counters, mostly turning up on model railway forums in searches

There is a drive circuit based on putting negative feedback around inverter stages. It was designed by Craig Anderton and is the basis of the Way Huge Red Llama and others.

roberty

@Keefy is that CMOS? I'm not clued up on that stuff yet

The Ugly Face is based around a 555 timer, I don't know what that is but it sounds amazing lol

Alex2678

I’m always apprehensive about buying one of these lots, hard to tell between someone’s old stash and someone’s dud pile, looks like a decent haul though!

Keefy

roberty said:

@Keefy is that CMOS? I'm not clued up on that stuff yet

The Ugly Face is based around a 555 timer, I don't know what that is but it sounds amazing lol

Yes, CD4049UBE I think. 

roberty

Alex2678 said:

I’m always apprehensive about buying one of these lots, hard to tell between someone’s old stash and someone’s dud pile, looks like a decent haul though!

Yes mate it was the WIMAs what swung it, I thought they must have been buying the good stuff

I got about 30 metal can JFETs and 30 of those 2N4265 things, plus a handful of larger silicon transistors measuring ~90hfe and some TO-92 JFETs

The tropical fish are all 100n (well, 90ish)

Haven't checked the resistor values but there is more variety there

roberty

Finished this up finally after some drama sourcing decal paper. My first finished build with my own PCB. I wanted to get some made so I copied a bunch of random circuits and laid them out to see if it would work

I made a lot mistakes but I was expecting that. The best way to learn is to have money in it. Here all the tall things are too close together which makes it awkward to put together. Also missed a short trace so I've jumpered that on the other side

From this I learnt to print the design off and get a feel for how the components fit, and to run a net connectivity check before exporting. Pretty obvious stuff

Anyway it's a bass preamp, it's very loud and very clean and it works

I stole the graphic from @stickyfiddle in the Muppet movies thread lol. Kermit's tie appears halfway down his shirt so I'll try to fix that

When I'm done with all this I'll have a stack of random PCBs for anyone who wants them. I have to be happy with them first though. There'll be a Mosrite Fuzzrite, a Barbershop Edgehog and a breadboard I/O kit, maybe more. Can probably take requests if it's something simple lol

stickyfiddle

Love this. I really want a red/yellow/black one. The good news is the big new maker space over here has finally started weekend opening, so I want to get over there and see what exact facilities they have that I can make use of - potentially 3D printers & CNC. They should definitely have various printing/finishing facilities and trad wood & metalwork kit. Can't wait  

roberty

That's cool @stickyfiddle I've never heard of a maker space before. Is it a kind of WeWork for manufacturing?

Tayda's turnaound for enclosures is so long. They paint them to order and that's where the bottleneck is. Can't argue with the price though. I might see what Gojira have to say. Maybe we'll bond over our disregard for other people's intellectual property

stickyfiddle

roberty said:

That's cool @stickyfiddle I've never heard of a maker space before. Is it a kind of WeWork for manufacturing?

Tayda's turnaound for enclosures is so long. They paint them to order and that's where the bottleneck is. Can't argue with the price though. I might see what Gojira have to say. Maybe we'll bond over our disregard for other people's intellectual property

Yeah pretty much. They do a lot of teaching as well

MAKE (@makeabudhabi) • Instagram photos and videos

Rkphilpot

roberty said:

That's cool @stickyfiddle I've never heard of a maker space before. Is it a kind of WeWork for manufacturing?

Tayda's turnaound for enclosures is so long. They paint them to order and that's where the bottleneck is. Can't argue with the price though. I might see what Gojira have to say. Maybe we'll bond over our disregard for other people's intellectual property

£20 for a UV printed 1590BBBK for me including postage.
I ordered 5

roberty

Rkphilpot said:

roberty said:

That's cool @stickyfiddle I've never heard of a maker space before. Is it a kind of WeWork for manufacturing?

Tayda's turnaound for enclosures is so long. They paint them to order and that's where the bottleneck is. Can't argue with the price though. I might see what Gojira have to say. Maybe we'll bond over our disregard for other people's intellectual property

£20 for a UV printed 1590BBBK for me including postage.
I ordered 5

Yeah it's mad. Good/fast/cheap - pick two lol

roberty

roberty said:

First time this has happened to me

Might drop Banzai an email and see what they have say about it 

A TOAN HOAL too far

Banzai sending me a new one. Will approach with some trepidation 

roberty

Put this wonky frankenthing together for a mini board, combining some bits from my big board into one unit

First stage is FX-10 boost always on - I put it on a 3PDT toggle so it can be bypassed. Too confusing otherwise

Then after that there's a have blue rangemaster stage (sorry Adrian). Was going to do a separate jack orman anti-buffer and was wondering how it would all fit, then I saw this

Then the last stage is a wampler pt2399 faux analog delay. I subbed the B50K time control for A100K to give finer control in the slapback range, and some extra lo fi long repeats at the other end

The third button is an amp channel footswitch and bi-colour status LED

It saves me from having four seperate boxes and covers most of my basic sound, for small board stuff anyway 

No graphics for this. It'll get the dymo treatment when the new tape arrives

Don't think I'll be doing anything like this again, not a fan of hand drilling and fiddly off board wiring 

roberty

Those transistor sockets go a bit loose after a few swaps and I don't trust them fully. Will rip it out and solder the little guy in place once I'm done auditioning