Economy memory man, a simple analog delay

[thomasha]

Long time without posting, but since I started with BBDs I had a lot of new (old) material to read. Thanks to Scruffie I could find the economy memory man. It's just a smaller version, without all the filtering and extra modulation and the compander, so it should fit in a smaller enclosure. I wonder why I can't find this pedal built more often...

I started with this schematic


and made some changes to a simple 9v power supply and the cheaper v3205 v3201 combo.
Since I used a different clock, there is no chorus in this one.

The boost was also reduced with a 2.7k resistor, just to overcome the volume drop at the centre of the blend pot.

[pickdropper]

This is fantastic on so many levels.

[mjg]

As usual, another amazing tiny build.   I always struggle to believe you can close the lid on these things! 

[dawson]

Thomasha for President 2020.

[selfdestroyer]

Damn... just damn.

Amazing build. Love the artwork also!

What knobs are those? I have been looking for a few smaller diameter knobs for a few synth builds I am working on and those look great.

[gordo]

Unbelievable.  That's like the pedal equivalent of a clown car...

[dan.schumaker]

Holy hell!  Awesome man!

[sarde]

I'm overwhelmed and amazed at this. Any chance of a demo video?

[alanp]

Simple... Yeah...

Edit -- I also like how you even used the weird footprint of the MN3005 to squeeze another millimeter of space in for the trimpots.

[EBK]

Someone needs to find Thomas some smaller enclosures to work with.  He's no longer being challenged. 

[jprizz]

holy shnikees! At first I thought 'No Way he fit that delay into that little thing', then I scrolled farther down... jaw hits the desk!

That.Is.Impressive!

[DLW]

Holy jeebus. You even moved the trimmers in between the nubs of the MN3005 to maximize space?

At some point, will you please post pictures of a pedal board of 1590LBs, so I can cry myself to sleep at night.

[fair.child]

This is going to be build of the year 2019. Geez, very fantastic build!

[thomasha]

Thanks for the kind words guys!
I added some extra pictures of the board that I forgot yesterday...

What knobs are those? I have been looking for a few smaller diameter knobs for a few synth builds I am working on and those look great.

https://www.aliexpress.com/item/32812304696.html?spm=a2g0s.9042311.0.0.7c694c4dixEsEo

But they are for knurled pots, so I had to sand them. I use a 6 mm drill bit and sanding paper until it fits. Unfortunately the 6.5 mm drill bit is too big.

You even moved the trimmers in between the nubs of the MN3005 to maximize space?

yep, the weird footprint of the BBD helped. The output balance trimmer really helps reducing the whining.

[Bio77]

Great build!  I had the same thought as when I saw your Electric Mistress build.  This is like a fine watch, a piece of art.

Someone needs to find Thomas some smaller enclosures to work with.  He's no longer being challenged. 

He will eventually be limited by the size of a toe!