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I think it would be fun to see just how many of bean's mini projects I could get into a single enclosure. /ponders...

That's definitely one of the ideas driving this. You could get 3 in a 1590BB...maybe if you stagger the bypass switches.

Any chance for a demo?

For sure. I'll do one today.

Does that mean I'm getting 5 lashes?!?!                           Thanks for the help!

Yes, but not until your birthday.

Here ya go. Eagle files are in the zip if you want to make a little PCB. If you are building in the same box as your delay, you can leave off C5 and D1. R5 can be increased to 100k, if needed.

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BTW: you could also use this to make a simple booster. Lower R1 to 10k, use a 1M pot for R2 wired as a variable resistor and increase C2 to 47 -100pF. It will sound really nice.

Extra credit: make R1 3k3, and use two back to back 1n914s in place of C2 and put C2 on the Gain pot. Now you gots an overdrive.

Yeah, is your DC supply a wall wart? 9v wall warts put out 9v minimum under load, but the actual supply voltage could very well be too high --12 - 14v. That could cause the problem.

Wasn't me. I administer three lashings for posting in the incorrect sub-forums.

Thanks a bunch for posting your mods!

You could fix this with a little additional circuitry. Since space is tight in the DB, you might want to do a dedicated unit for correcting phase issues if you are doing a lot of stuff in stereo.

I could draw it up for you in like 10 minutes if it's something you want to do.

Yeah, it's inverted output from the DB that is causing this.

Here you go:
http://www.mouser.com/ProductDetail/163-1000-EX/?qs=sGAEpiMZZMu2f9RNbWupYpjcnvBCo1U8pWq%252bWb5iDAI%3d

Those are locking type but work just fine with regular 2.1mm plugs.


I like these when not using a battery hook-up: http://www.mouser.com/ProductDetail/Kobiconn/163-1060-EX/?qs=sGAEpiMZZMu2f9RNbWupYnIgpIEIrT90cxuQB4NBfZ4%3d

A couple of projects which I thought were finished I may want to spend some more time on

Are the stage fright and collosus still a go?

thanks

Yes, both of those are for sure.

You need to ground both the input and output jacks. The plastic encased ones do not ground to the enclosure like the metal framed ones.

Hmm...that IS weird. You can hear on my demo of the CL that it is not particularly dark.

Couple things I can think off the bat: if you checked all the caps and they are the correct values, it's possible that a resistor might be slightly off. That could definitely affect the filtering.

OTOH - it could be something simple like a cap grounding out somewhere that should not. Actually, that's not so simple from a de-bugging standpoint.

You may have to audio probe the build to find out where the darkness gets introduced.

Depending on how much trouble it is for you, a short sound sample in a addition to a few pics of the pCB and your wiring might help.

Couple things -

I did not have a noticeable drop in volume when engaged, but I'll look at the schem again and suggest a possible mod for increasing output level, if desired.

The PCB is done and can be submitted for production with the next batch. On that note, I might re-evaluate just exactly what the next batch is going to be. A couple of projects which I thought were finished I may want to spend some more time on, and projects that I thought were a ways off turned out to be more or less done (esp. a number of baby boards).

I'll try to get a more concrete plan for the next batch and get it posted in a couple of days. I will be including at least a couple of baby boards, though. There were a lot of requests in the Feb. batch "poll" so I want to take those into consideration too.

Sounds marvelous!



Here's how I'm wiring up my 1590As----actually works out really well with the PCB on top of the jacks.

Yeah. It's 299-value, ex 299-4.7k.

200 for $4.