Messages

Hello
Sorry if I´m asking a silly qwestion, I´ve been a long time away from stompboxes and guitars.
I´m interested in a Rustbucket PCB, I can see that this PCB isn´t at the shop.
Can anybody tell me why?
It´s out of stock?
Thanks

Thanks buddies.

I read somewhere "increasing gauge numbers denote decreasing wire diameters" So 22 gauge is wider than 24 gauge...(and maybe could be better?)

Am I right?

Thanks again.

Sorry for such a silly qwestion, but...what´s the wire gauge that you use for the most usual fx projects. Is there one that´s the most suitable?

Talking about simple projects (with no shielded wire or other singularities)

Thanks, best regards.

OK. Solved, I had a bad solder-joint. Only 50% of the fx was working.

Now in both pins of the JRC4558 I can hear the sweep (2 different sweeps)

Now it´s perfectly working.

Really Nice Envelope WOW!!!

Thanks, best regards buddies.

Hi folks.

I'm debugging a Honneydripper. The circuit is working and I can hear the envelope. The problem is that the fx is not as deep as it should be.

Using the audio probe, I've check certain points.

I've got signal without envelope at pin 7  (JRC4558)

At pin 1 (JRC4558) I have signal with fx, the envelope here is even deeper than in the fx out.

I'm wondering....Is it working right? Is this behaviour correct?

Regards folks!

Help still needed, I could upload samples if necessary.

Thanks dudes.

No way....I´ve tried different combinations for R1, R5, C2, but with no results.

Now that I´ve post some information....can anyone help me to track down the problem?

Thanks guys.

Sorry Brian, for posting this way...

Here is the missing info...

IC-1 – LM324
Pin 1  + 5.03v
Pin2   +4.90v
Pin3   +4.45v
Pin4   +16.57
Pin5   +4.90v
Pin6   +4.90v
Pin7   +4.90v
Pin8   +4.98v
Pin9   +4.90v
Pin10   +4.90
Pin11   0v
Pin12   +4.90  
Pin13   +4.90  
Pin14   +4.90  

IC2 – CA3080E
Pin 1  0v
Pin2   +4.90v
Pin3   +4.90v
Pin4   0v
Pin5   +0.66v
Pin6   +4.90v
Pin7   +16.58v
Pin8   0v
IC3 – CA3080E
Pin 1   0v
Pin2    +4.90
Pin3   +4.90
Pin4    0v
Pin5   0v
Pin6   +4.87
Pin7    +16.58  
Pin8   0
 
IC4 – JRC4558
Pin 1  0v
Pin2   +4.22v
Pin3   +4.68v
Pin4   0v
Pin5   +4.68v
Pin6   +4.10v
Pin7   +4.80v
Pin8   +16.58v

IC5 – LM324
Pin 1  + 2.60v
Pin2   +2.60v
Pin3   +2.66v
Pin4   +16.45v
Pin5   +3.29v
Pin6   +4.86v
Pin7   +2.31v
Pin8   +2.93v
Pin9   +2.67v
Pin10   +2.64v
Pin11   0v
Pin12   +2.64v  
Pin13   +2.67v
Pin14   +4.75v

IC6 – LT1054
Pin1   +0.70v
Pin2   +4.29
Pin3   0v
Pin4   0v
Pin5   +0.20v
Pin6   +2.38
Pin7   +1.29v
Pin8   +8.94v
 
Substitutions:
R5 – 330k
C2 – 1n
R21 – 1.8k
No more substitutions.

Maybe, the first step to take could be socketing R5, C2 and R21 and experimenting with different combinations. I´m always a bit fearful working with 2 side PCB´s, but I´m afraid it could be a must if I want to get the best sound from this box.

I remember that I provisionally socketed all of them long time ago when I finished the fx. But the box has been unused for months, and recently I´ve realized that the fx is not sounding 100% as it´s supposed to do.

Maybe the way to proceed is to step back and socket again R5-C2-R1. Am I wrong?

Thanks Brian,

regards everybody

I don´t own an original. I heard some clips from internet, for ex:

http://www.youtube.com/watch?v=YSJfsg8-tuA

thanks for your answer.

Hi crew.

I´ve noticed that my honeydripper doesn´t sound as the original dipthonizer. The two pots and the switch seems to work properly. The box makes different sounds in yeh, boh, wah, and yae positions. The sweep and fuzz pots also work.

I can hear the auto-wah (or envelope). But I´ve noticed that the effect is very subtle. In the samples that I´ve heard of the original dipthonizer, the fx is much more noticeable.

I´ve noticed also, that I hear always the fuzz, rolling the fuzz pot CCW I can hear (slightly) more saturation, but the fuzz sounds as well in CW.

Any advice about where I should start looking in would be highly appreciated.

Regards Folks!

Hi there, mates!

I´ve just finished a dig-dug, and It´s almost working, but it seems that there´s a little trouble.

In the non-random mode (sequenced mode), the box gets stopped in the first led. (first led shining and all the rest off). If I touch pin 15 of the 4017 (the reset pin) with my audio-probe, suddenly the box starts to work 100% OK, running in 8, 6 or 4 leds mode. (when I raise the probe it gets stopped again)

Reading the 4017 datasheet, it seems that the pin 15 has to be 0v. to let te chip count the pulses. But looking at the dig-dug schematic I seems that the circuit is not designed for getting 0v in the reset pin.

I´ve measured Pin 15 of my one´s dig-dug and it´s 3,8v.

The qwestion is....is that value correct? or maybe it has to be 0v.

I think that the problem has to be in one of the 4 regulator pins of the 4017, probably pin 15.

Thanks in advance.

Another idea.

I´ve realized that the output level of this box is really high. Maybe raising the value of R8 we could finally get rid of the oscillation loosing a bit of output level. (that we have too much). And maybe we could remove all the anti-squeal mods (except the buffer of course).

It´s time to think a bit about what way I´m going to take.

Of course all your advices guys, are highly appreciated.

Something happened, I think I could have done something wrong in the boost section.

Now with the FX off (working in true bypass), if I activate the boost, a whistle appears. This is really weird.

By now, I´m going to recheck all again and investigate it.

Yesterday I was testing the boneyard in the soundcard. But today in the amp I´ve realized that still remains a whistle with the all the knobs full clockwise, with boost and high gain activated.

I´m using by now:

-Shielded wire
-R5/C5 half gain mod
-50K-B pot for boost
-1M-A for high gain
-100K-B for crunch.
-all metal film resistors.


I suppose I need to use a 25K-B for boost to completely kill the squeal.
I´m seriously thinking in using a transformer, like the original carl martin, and get rid of all the anti-whistle mods.
Does anyone have tried something like that?


Thank you again, guys, for your help!!!

HEY!! NOW IT´S DEADLY QUIET!!!!

THANK YOU PRYDE.

Even I´m using 1M/100K for high gain/crunch pots.

I´ve had to reduce the booster pot from 100k to 50K, because it was squealing, but now all the whistles have gone.

I´ve been struggling with this box for a long time!!

Thank you man.