tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

[clydeshere]

Thanks I think I know whats going on with mine. I have a setup in my workbench with the grounds connected to so have to make a harness for this thanks.

[deadastronaut]

@perrow, have you finished/built this then.?..just wondered.

i'm working on a colorsound inductorless wah version and am going to try and incorporate the tiny trem too...

driving the wah from ldr's...as well as the trem..just for fun...

will bread it tomorrow maybe.. and see how it goes... ..got a lot on at the mo..i never find enough time to do all the stuff i want..

and plenty of time to avoid the stuff i should do...

arghhhhhhhhhhhhhhhhhhhhh...........


heres the breadboard of the wah for anyone who wants to play with it...
its not verified btw...i knocked it up quick ....so if there are mistakes tell us all...cheers...rob.

[Perrow]

@perrow, have you finished/built this then.?..just wondered.

No, not yet. Commented using my vulcan logic Sorry if I sounded to sure of what I'm speaking about 

Still waiting for kindly etched pcb's to arrive, as well as waiting for my mind and my wallet to come to some sort of consensus for my next parts order, they're getting closer but are still negotiating.

[El Heisenberg]

Argh! Why am I building another tremolo after building the tremulus lune?!?!


I'm going to put this tremolo in a guitar I think

[deadastronaut]

@perrow, have you finished/built this then.?..just wondered.

No, not yet. Commented using my vulcan logic Sorry if I sounded to sure of what I'm speaking about  

Still waiting for kindly etched pcb's to arrive, as well as waiting for my mind and my wallet to come to some sort of consensus for my next parts order, they're getting closer but are still negotiating.

waiting...yeah i know how that feels, been waiting for a midi keyboard off ebay for 9 days, the silly arse seller
sent it by second class post..arghhhhh..he could do with some of that vulcan logic...

@el heisenberg. coz its fun and very cheap,
good idea whacking it in a guitar, like those old 60/70's guitars used to have....
cool. rob.

[clydeshere]

@perrow.. why the pin 4 connection?...

I misread Adriano's post and haven't had time to correct myself. Pin 4 of the IC needs to be either removed or at least bent so it's not connected. I've updated the image with a note about this. Reload if you don't see it.

On the other hand, I fixed it in ... [drumroll] ... the next version Even moved the rate led ground to the edge of the board.

hay does it work? did u verify it?  I'd build it  but need to know if it is verified first.

cheers

Ok im not great at reading these but were is the LED ground going to?

[deadastronaut]

where it says led ground!...

oh do you mean the 'rate led?...

that would be off board , in the top of your enclosure...just take the - leg to a ground...

[clydeshere]

ok to what ground? lol

[clydeshere]

oh just to the eonclosure?

[deadastronaut]

its there already dude...just had a other look..... lol..

where it says led ground...because your other led is already on there!!!!!!....

ha ha..you got me at it there!...

edit: so where it says rate led = +led
and ground led = - led!.... sorted.

[clydeshere]

Ok last try I see were the led goes to C1 then goes down and says led ground and D1 for some reason? whats D1 and what is that connection for?

[deadastronaut]

hi man d1 means diode..which is what an led is..'light emitting diode'.

so yes one negative - led goes next to c1..
and the negative of the other led goes to 'led ground..

the positives of both leds are connected together on there ok..

watch your positive and negatives....
here ya go...apologies to perrow for butchering ya pcb..

[clydeshere]

ok last question I promise what does the led ground connect to? It just  connects the 2 negative LED's together because when I do that they don't flash. I guess im not understand were offboard?  Promise my last question if i cant get rid of this clicking it's going in the trash.

[clydeshere]

Lol delete last question thanks

[deadastronaut]

ok got it.....lol....


have you still got clicking?... i stuck a large uf cap across  the pos and neg sorted it for me, ..

[Earthscum]

You guys are gonna like this one... I am rummaging through my email and start reading the DIYAudio newsletter. There's an article about a "Lightspeed Attenuator" thread by George Stancheff. http://www.diyaudio.com/forums/analog-line-level/80194-lightspeed-attenuator-new-passive-preamp.html

You have to have an account there to view the schem link, but basically it's an LDR in the signal path, and an LDR shunt to ground. One is on while the other is off. Solid state controlled passive volume control. Just gotta modify the tiny trem to run 2 LED's.

[Barcode80]

Hmm, worked this up on Perrow's layout (didn't want to mail you the pcbs until it was verified Perrow! ) My 555 got REALLY hot, although i could get tremolo for a bit. I like it, but I need to get this sorted out so I don't catch my pedal on fire....

[Earthscum]

Don't feel bad... I keep cheating, using a schmitt trigger oscillator. I keep forgetting to get a regular 555. The TLC I have does nothing but light up the LED for a second then goes off. I even tried other configurations, no dice.

[Perrow]

Hmm, worked this up on Perrow's layout (didn't want to mail you the pcbs until it was verified Perrow! ) My 555 got REALLY hot, although i could get tremolo for a bit. I like it, but I need to get this sorted out so I don't catch my pedal on fire....

Could it be (and this is a stab in the dark) that the leds should have resistors and without them you're drawing slightly too much current from the 555?

[deadastronaut]

hot?.....

weird, although i have never measured the voltage coming off the 555 to the leds!!!!...

but i have no heat issues, may be the model of 555..another stab in the dark!..