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JackLondon

DIY Effects

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I have built it, in fact I built two, but could get neither to work.

It's something about me and ICs. They're fine when I build stuff on a breadboard, but as soon as I put them on vero, even with verified layouts, nothing bloomin' works. I always sockets them but it makes no difference.

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Built a quick EM-Drive clone for a friend, Fuzz Dog PCB, nice and easy, sounds fine (for a light guitar Overdrive). Stencilled a Bear on it.......cos he likes Bears mainly:

[IMG]http://i62.tinypic.com/1zmkxes.png[/IMG]

Si

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[quote name='Sibob' timestamp='1424341417' post='2695248']
Built a quick EM-Drive clone for a friend, Fuzz Dog PCB, nice and easy, sounds fine (for a light guitar Overdrive). Stencilled a Bear on it.......cos he likes Bears mainly:
Si
[/quote]

C'mon..... let's see inside! :P

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I forgot to take a photo and my mate has it now :(
Was fairly tidy, ever since I discovered solid core cables.....changed my world. There's a few posts within this thread where I have some guts pictures from my Poultone Boosts etc, nice and neat :)

Edit:
Here's one of my boosts, the Em-Drive had one more board-mount pot, but actually fewer components. Same cabling fundamentally though:

[IMG]http://i61.tinypic.com/2r7mu7c.png[/IMG]

Si

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I need help, I've gone and stirred up a whole mess of my stupid. I'm asking in here because it's part of a PSU for pedals.

The problem: I am trying to wire up a neon power indicator and I can't get it to work. I know it works because if I wire it up straight to the mains, with nothing else connected, it works. But I am trying to go Mains ---- Fuse ---- Switch ---- Lamp ---- Circuit (which is empty right now). The most infuriating part is that when testing, I am getting 230v before the lamp but 130v after it. When touching the terminals with the multimeter the lamp will actually give a weak glow. I have tried wiring it in parallel, too, but that didn't work, either.

I am assuming and hoping that, because I have never tried installing one before, there is something about them that I have never needed to know before, and one of you fine gentlemen might be able to give me a clue.

This is the lamp: [url="http://www.bitsbox.co.uk/index.php?main_page=product_info&cPath=172_184&products_id=1398"]http://www.bitsbox.co.uk/index.php?main_page=product_info&cPath=172_184&products_id=1398[/url]

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I found this:

[i][color=#000000]A neon indicator lamp (and its series resistor) are wired in parallel with the appliance and indicate that the power is on. Once lit, it has an extremely high resistance and the current flowing through it is tiny. If you wire it in series with the appliance, the current flowing through both will be very small and nearly all of the voltage drop will be across the neon lamp.[/color][/i]

[color=#000000]....and found [url="http://www.intl-lighttech.com/applications/light-sources/neon-lamps"]this[/url] about series resistors for them.[/color]

[color=#000000]Hope this helps.[/color]

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I decided to put my Madbean Afterlife into a 1950a enclosure. I replaced the Ghostnote mod with the original resister as that's where I'd found it to sound best anyway. I also tried to make a neater wiring job after seeing Si's work.....



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[quote name='ColinB' timestamp='1424419409' post='2696042']
I found this:

[i][color=#000000]A neon indicator lamp (and its series resistor) are wired in parallel with the appliance and indicate that the power is on. Once lit, it has an extremely high resistance and the current flowing through it is tiny. If you wire it in series with the appliance, the current flowing through both will be very small and nearly all of the voltage drop will be across the neon lamp.[/color][/i]

[color=#000000]....and found [url="http://www.intl-lighttech.com/applications/light-sources/neon-lamps"]this[/url] about series resistors for them.[/color]

[color=#000000]Hope this helps.[/color]
[/quote]
This is what I ended up thinking, but it didn't work when I tried it in parallel. The unit already has a series resistor built into it.

Thanks for the link, it was interesting.

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[quote name='ColinB' timestamp='1424440722' post='2696334']
I decided to put my Madbean Afterlife into a 1950a enclosure. I replaced the Ghostnote mod with the original resister as that's where I'd found it to sound best anyway. I also tried to make a neater wiring job after seeing Si's work.....




[/quote]

Looking great, 1590a projects are so satisfying when they come off lol

Si

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Tidying up my parts box I found 10 LM308Ns,10 RC4558s and 3 555 timers...

What to make??

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Started building a Rat clone:



Thinking of adding the Ruetz mod to it and will add some clipping options too.

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Pardon me if I'm stretching the definition of effects a little bit. This is an in-progress pic of my current bass preamp/DI build:



I'm just about to order the permanent front panel, which will look a lot like this, in blue anodized aluminium:



There's a TalkBass build thread [url="http://www.talkbass.com/threads/a-diy-1-2-rack-bass-preamp.1135423/#post-16982343"]here[/url] as well, but I would be perfectly happy to discuss details in this thread if desired.

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[quote name='Bottle' timestamp='1426112296' post='2714668']
Oh, that's mighty purty :)
[/quote]

agreed. :gas:

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[quote name='bartelby' timestamp='1425470588' post='2707608']
Tidying up my parts box I found 10 LM308Ns,10 RC4558s and 3 555 timers...

What to make??
[/quote]

Definitely a RAT with the 308s. I made one of these, but using a 741 (so took out the compensating cap across pins 1 and 8) a while ago.

http://tagboardeffects.blogspot.co.uk/2014/07/idiotbox-blowerbox.html

Well worth building - nice and gnarly!

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[quote name='Bottle' timestamp='1426112296' post='2714668']
Oh, that's mighty purty :)
[/quote]

Thanks. It actually sounds pretty nice too, always a bit of a crapshoot when doing my own design. Here's the matching power amp:



700 watts @ 4 ohms, 7.5 pounds. The two modules will be able to fit side by side in a 19" rack once the new front panels get done, or can be stacked vertically for use with smaller cabs.

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This is my OCD clone with a split'n'blend control added where the battery used to go. 'Tis a bit scruffy 'cos it's the third enclosure that it's been in.



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The Split n Blend control has become a firm favourite of mine.
I've got 2 made up ready to drop into the Rat and Zen Drive clones I'm building.

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I've never had much luck with blend circuits....when yu say 'Split 'n Blend' which circuit do you mean ? Ta

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Yep, that one.
Dead simple and changing the 100nF caps for 470nF ones helps retain lots of low end.

I've built one of these too, but not tried it yet.

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[quote name='Wooks79' timestamp='1424199020' post='2693787']
Is there anyone on here fancies looking at a Fuzzrocious Dark Driving that doesn't seem to be playing right for me please?
[/quote]

I had one of these and the transistor was socketed but very loosely and it would occasionally cut out until I secured it with tape. If yours is playing up I'd check for a dodgy connection there!

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