Author Topic: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO (Read 367858 times)

Jhouse · « **Reply #420 on:** January 30, 2011, 04:31:02 PM »

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hi jace, that looks interesting, nice one, have you tried it?...at least its not a 2n2222 eh?.

I threw one together earlier. It works with two different 2N4871 that I pulled out of something. I don't remember what it was though. Anyway, the LED flashes, but I haven't tried it with a LDR yet to see how that works out.

deadastronaut · « **Reply #421 on:** January 30, 2011, 04:50:03 PM »

Quote from: Jhouse on January 30, 2011, 04:31:02 PM

Quote
hi jace, that looks interesting, nice one, have you tried it?...at least its not a 2n2222 eh?.

I threw one together earlier. It works with two different 2N4871 that I pulled out of something. I don't remember what it was though. Anyway, the LED flashes, but I haven't tried it with a LDR yet to see how that works out.

cool, at least it works/flashes.....without the 2n2222's...nice one..

@all heres the latest tiny trem schematic ok.

http://dl.dropbox.com/u/7464107/tiny%20trem.pdf

phector2004 · « **Reply #422 on:** January 30, 2011, 05:23:45 PM »

Is this SPST switched?

Just disconnect the LDR?

deadastronaut · « **Reply #423 on:** January 30, 2011, 05:31:02 PM »

Quote from: phector2004 on January 30, 2011, 05:23:45 PM

Is this SPST switched?

Just disconnect the LDR?

no switch?..just in/out...

@jace have you got an ldr?...

MetalUpYerEye · « **Reply #424 on:** January 30, 2011, 05:31:38 PM »

'Kay... I had built it before... Most of the circuits still there... I was one of the guys having major ticking problems... $:-\$ Hopefully the sag will stop it for me too.

Jhouse · « **Reply #425 on:** January 30, 2011, 05:43:19 PM »

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@jace have you got an ldr?

I thought I did, but I couldn't find any in my parts bin. I'll have to go to radioshack tonight and knab one.

deadastronaut · « **Reply #426 on:** January 30, 2011, 05:46:53 PM »

Quote from: Jhouse on January 30, 2011, 05:43:19 PM

Quote
@jace have you got an ldr?

I thought I did, but I couldn't find any in my parts bin. I'll have to go to radioshack tonight and knab one.

wow what a time difference there is...its 10:45pm here....nothing open apart from pubs..

phector2004 · « **Reply #427 on:** January 30, 2011, 07:49:09 PM »

Quote from: deadastronaut on January 30, 2011, 05:31:02 PM

Quote from: phector2004 on January 30, 2011, 05:23:45 PM
Is this SPST switched?

Just disconnect the LDR?

no switch?..just in/out...

@jace have you got an ldr?...

Well... "True Bypass" with a 3PDT would make one throw a wire, and the other throw a wire with a resistor to ground. Why not just disconnect the resistor to keep offboard wiring to a minimum, simplify parts, have sturdier switches (chances of it going bad being 1/(# poles)?)

Jhouse · « **Reply #428 on:** January 30, 2011, 09:08:47 PM »

I went and got a LDR and guess what. The circuit works just fine, no crackling and no ticking. I have it set up like your amoeba tremolo too.

How the LDR part of this circuit works is that you essentially have your in and out connected together and they both go to ground with an LDR between them and the ground. As the led part of the circuit flashes, it causes the LDR to change resistance and drop both its input and output to ground. This is what makes the tremolo style effect. Hope that clears up some confusion about this circuit.

deadastronaut · « **Reply #429 on:** January 30, 2011, 09:15:49 PM »

ahhhh nice one jace...glad it worked out...no noise yay!!!!!!!!!!!!!.......

@phil.

ahhhhh..gotcha, wondered what you meant...yeah true bypass with a dpdt...yep.!..

i was wondering how to wire this up..but with a power led/on off....but with the rate led on all the time...using a 3dpt?

hmmmm...just tried the 220 in and out of breadboard,...no popping etc...so yeah it would be ok switching that...

hmmmm how to switch it?..the way i want it...with a dpdt?...nice reliable switch..

here's a diagram of it on vero for now...can someone fill in the switching/wiring?...im used to 3pdt's..and the in/outs a bit weirder than i'm used too...

ive gotta say this is working really well too....happy bunny at last...just need to box the bugger now ha ha...

Jhouse · « **Reply #430 on:** January 30, 2011, 09:31:09 PM »

I'm just glad I figured out a transistor to use instead of those finicky 2N2222a's. Unfortunately, uni-junctions are uncommon. Oh well. I'm going to order some uni's from smallbear and see if I can use them as a substitute.

A tremolo small enough to fit into a 1590a.

deadastronaut · « **Reply #431 on:** January 30, 2011, 09:37:23 PM »

yeah, those uni's look pricey too...cool circuit though ...and above all it works..

the tiny trem would fit nicely in a 1590a..

guitarmaggedon made a nice one in a 1590a, with wah filter too..external ldr as well...crammed in....great stuff....

any idea on the wiring above?..for power led, on/off but rate led on all the time.using a 3dpt..hmmmm $:-\$

Jhouse · « **Reply #432 on:** January 30, 2011, 09:47:00 PM »

Well, I'm on my crackberry so I can't draw a diagram.

I would just put a yellow led in parallel with the red led that is affected the ldr. That would be my rate led. Then I would wire up the switch like regular.

1 2 3
4 5 6
7 8 9

Put a jumper that goes from 1 to 9 and then put the input tip to lug 1. Lug 2 gets your negative side of your status led. Lug 3 is your cir
cuit's effect output. Lug 4 is your circuit's effect input. Lug 5 should go to ground. Lug 6 goes your output tip. Lug 7 and 8 need to be jumpered together.

deadastronaut · « **Reply #433 on:** January 30, 2011, 09:49:16 PM »

cheers man, but i want to use a 6 pole dpdt..

Jhouse · « **Reply #434 on:** January 30, 2011, 10:05:55 PM »

Whoops. Apparently I can't read. Derp.

Anyway This is what you want. Keep the rate LED in parallel with the other one.

phector2004 · « **Reply #435 on:** January 30, 2011, 10:07:35 PM »

Ok, so pole 1 has "Wire from IN-->OUT" connected to center lug, Top lug connects to D1

Pole 2 has center connected to ground, top lug connected to indicator LED flat side.

Cheers

Jhouse · « **Reply #436 on:** January 30, 2011, 10:11:01 PM »

Oh now I get what you meant by the switch idea.

deadastronaut · « **Reply #437 on:** January 30, 2011, 10:13:00 PM »

@jace, yeah, it wont need a millenium..its straight in out..

@phil, cheers man, ill draw it up, . it was confusing me with the in/out.

i'm used to the 3dpts'....but this is a little weird to get my head round..thanks,

phector2004 · « **Reply #438 on:** January 30, 2011, 10:14:46 PM »

(Edited with pic!)

deadastronaut · « **Reply #439 on:** January 30, 2011, 10:22:06 PM »

nice one phil ..your a star!...brilliant.

i thought you would switch the 220/9v on off...?

edit:..oh yeah the rate led..

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Author Topic: tiny tremoloOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO (Read 367858 times)