several questions need to be answered!

d95err · August 11, 2006, 06:53:10 AM

Quote from: g.e.o on August 10, 2006, 09:07:53 AM
and some more questions.

1. what do u think of the easy vibe and the EH poly phase?

2. i have found hundreds of amp shems but never a pcb layout. are there any? if not is there a program that can transform a shem to a pcb? i know its easy and fun to make ur own pcb from a shem but coz am new yet i would like to be sure about the layout and if have any problems to be able do debug just the simple stuff and not the whole pcb.

1. The EasyVibe sounds great, but lots of builders (including me) are having problems with ticking from the LFO. Don't know about the EH Poly Phase.

2. What kind of amps are you talking about? Tube amps? Solid state amps? Amp simulations (like the ones from www.runoffgroove.com)?

g.e.o · August 11, 2006, 09:29:26 AM

thanx a lot bwanasonic and racedriver. i'll try that and if i have any problems i'll pm u guys.

d95err, am interested in builting a box of 3 tube amps so that i can change to any of them with a switch or even use all of them. i'll try what the other people said and see if i can do it but still if there was something already made on the internet i would be very happy. am talking about pcb's and not just shem.

cheers! George

Primus · August 11, 2006, 03:34:29 PM

In my opinion, the Small Stone is the swirliest phaser ever!

g.e.o · August 11, 2006, 06:18:53 PM

hey primus. never heard that b4. is there a sample somewhere that i can download? do u have it? if yes can u post a sample? thanx in advance.

g.e.o · August 12, 2006, 09:20:23 AM

here are some more questions people! pls answer.

1) in a pedal board that has 12 effects daisy chained how do we create an FX LOOP? i mean like psst did on his cornish style pb on the back that he has some sent/returns for his wah pedal and volume pedal. heres a pic from pete cornish's back of the pd he made for gilmour. http://www.petecornish.co.uk/back4.html dont have a clue about wiring that.

2) how do we stop the clicking sound of the switch. i heard many people on this forum never had this problem when also made a true bypass connection. i use a dpdt and a millenium pcb i made for led support. here's a pic of what i did.

do i have to change something? maybe the resistor? or if i made an ic buffer as described here http://www.generalguitargadgets.com/index.php?option=content&task=view&id=156&Itemid=190 will help for that as well?

3) just another silly or maybe not question. if i buy a pc power supply (in Greece costs 25$) could i just change the voltage of each out as described here http://www.geofex.com/circuits/+9_to_33.htm ? the only difference is that a pc power supply has a 5V output so if someone can tell me what do i need to make it from 5V to 9V i'd be grateful. i have an idead of using an LM3809 but what do i use before?

Please feel free to give me new ideas on my questions no matter if its not the direct answer on what i asked. its all about experimenting here i think. right? so any new idea or suggestion of what u did in your pedal board is great for me. i have finished nothing yet. everythings just in my mind going round and round as in ur minds i guess in the point that the first thing i do when i wake up and when i finish work is being on the internet reading, serching, asking and makin plans.

thanx a lot in advance and hope i'll read some ideas here. no matter if u think its silly, go on and suggest me stuff. i make silly questions all the time. but if u dont u never learn.

Cheers, George!

d95err · August 12, 2006, 09:33:30 AM

Quote from: g.e.o on August 11, 2006, 09:29:26 AM
d95err, am interested in builting a box of 3 tube amps so that i can change to any of them with a switch or even use all of them. i'll try what the other people said and see if i can do it but still if there was something already made on the internet i would be very happy. am talking about pcb's and not just shem.

Are you talking about tube amps, or preamps? There are some PCB layouts available for preamps (e.g. the Real McTube). DIY tube amps don't usually use PCBs, they are point-to-point wired. www.schematicheaven.com has both schematics and layouts.

Either way, 3 tube (pre)amps in one box seems very complex. Keep it simple! Build one tube (pre)amp and get it to work properly. Once you've achieved that, you can think about other tube designs or switching.

g.e.o · August 12, 2006, 09:44:37 AM

well d95err i think ur right. for the moment i wanted to built one 1st and then see whats happenin anyway. thanx for the link. didnt have that one. i think i want an amp unless am wrong and a super reverb for instance in a preamp. i dont think so though. right? hell am getting confused with all this information in my head $:-\$ . anyway. do u have any suggestions for my today post?

thanx

Primus · August 12, 2006, 03:38:35 PM

Hm. I don't have any sound samples but I can direct you to some commercial sound samples. The classic MXR phaser posterboy is Van Halen. So, this phaser is a lot more "aggressive". One of the classic players of the Small Stone is Jonny Greenwood from Radiohead. There is a lot more vibe to the Small Stone and a lot of people use words like "lush" to describe it. Tonepad has a good layout. Be aware that there is a classic problem with the small stone: a volume drop. It's very easy to fix it to be unity gain, though, by adjusting two resistors.

Peace,

john

g.e.o · August 12, 2006, 11:06:00 PM

thanx john! and what r the resistors i have to change? according to tonepads layout of course!

cheers!

g.e.o · August 18, 2006, 06:56:54 PM

ok guys! here's what i think am gonna built next.

1. for phaser mxr phase 45

2. for delay rebote delay 2.5

3. for flanger electric mistress

4. for chorus boss ce-2

now i want suggestions for a compresor. what do u think of the mxr dynacomp?
also has anybody built a red ranger? i think i may built one of those. and can u please answer my post #24? the stuff about the power supply and the switch clickin?

and PLEASE. can anyone tell me how to built fx loops in my future pedal board? i want it to have 2 sent/returns. PLEASE help!

thanx a lot.

RaceDriver205 · August 18, 2006, 09:53:47 PM

Nice choices.

Quotewhat do u think of the mxr dynacomp?

Yeah, gets pretty good reviews. I think people prefer the Ross Compressor though, which just has a few more resistors and such. Red Ranger might be useful, and its very simple so why not.

Is the switch clicking actually the switch? I.e do you mean a pop noise comes from the amp, or the actual switch itself clicks?

For power, you could use this info (www.geofex.com/circuits/+9_to_33.htm), and multiply the 5V by 3 to give 15V. You then use a 7809 regulator IC (standard part) to turn the 15V into 9V.

So you mean you want 2 loops of effects, which you can switch between by a single footswitch?

g.e.o · August 19, 2006, 08:09:46 PM

1st of all thanx for the reply racedriver. ok, here we go.

about the switch. i mean that a pop noise comes out of the amp when turning on/off the stompbox. is there anything i can do about it?

as it comes for the sent/returns i wanna built something like an amp's sent/return. i mean when nothing is plugged the signal keeps flowing but when something is plugged it goes through that circuit and then again to the next effect. not having to use a switch. is that possible? if not i guess that doing it with a switch is the same as if u have another stompbox connected there.

for the power supply now. sorry for my silly question but what do i use there to multiply the 5V? i mean do i have to built another circuit or if i put something else in the excisting circuit will change the 5V to 15V? if thats the thing what do i have to change( meaning resistors, capacitors etc)?

thanx for ur time. really appreciate that. take care! george

g.e.o · August 22, 2006, 11:18:48 PM

anybody an answer for the switch pop noise please?

alderbody · August 23, 2006, 03:05:37 AM

Quote from: g.e.o on August 22, 2006, 11:18:48 PM
anybody an answer for the switch pop noise please?

do you mean the pop noise from the true bypass switching?

if this is what you mean, you need the so called "pull-down" resistors.

these are large value resistors (1M up to 2.2M or more) connected from the input and output caps to ground.
so, you have to connect one before the input cap and another one after the output cap.

there was an article somewhere about the values of the pulldown resistors but i can't remember where...

most people use 1M or 2.2M, though.

[apo pou eisai g.e.o.? steile p.m. gia na min berdevoume tous allous me ta ellinika, ok?]

RaceDriver205 · August 23, 2006, 05:07:33 AM

Well if you look at this:

If you add the section that gives +25, and you use the 5V supply in place of the 9V battery, you'll get about 13V (where the +25 is). You then use a 7809 regulator in the standard manner.

And yes, an effects loop can be switched in when you plug in an effect, if you use switched sockets. Switched sockets pass the signal along its normal way, unless there is a plug in them, in which case the signal goes into the plug.

g.e.o · August 23, 2006, 10:46:39 PM

thanx a lot racedriver for the power supply thing. i think that one will work. also, recently, with the help of transmogrifox i found out what u said about the FX Loop. so god damn easy and still didnt think of it.

thanx a lot once more!

i'll do what u said alderbody and see what's gonna happen. will let u know if it worked coz i think my projects from tonepad already have the 1M resistor in the input b4 the input cap and without being sure they dont have one after the output cap. so will put one there and see whats happenin. i PM u in Greek as well. take care.

thanx a lot guys.

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several questions need to be answered!