Increasing delay mix on Deprofundis??

[Marmoset123]

Hi, I've built a Deprofundis delay and it's all working fine, but I was wondering if there might be some relatively easy bodge I can do to increase the amount of delay signal relative to dry signal? At the moment it only goes to about 50% wet with the knob at maximum.

In an ideal world I would like to be able to go to 100% wet, but if that would involve a total redesign then maybe I could just find a way to boost the wet signal or something? Any suggestions?

Thanks

Jamie

[patrick398]

Try dropping the value of that 22k coming of the Mix pot into pin 6 of the opamp

[Kipper4]

You mean r7 Patrick?

As an alternative you could make R4 a I dunno a 25k pot to Vb a bit like the mix pot with the dry signal from its lug2 to a series r (you'd have to experiment to find the right value r)
Maybe start with 10-22k experiment up and down.
That way you can can roll off the dry.

[Marmoset123]

Thanks for the quick responses! I'll have a go at this tonight. 

Cheers

Jamie

[patrick398]

You mean r7 Patrick?

Yep that's the route i've gone in the past but you're way is definitely better for flexibility, good thinkin'

[nonost]

Hi. I've just built a DeProfundis and also wanted more wet signal. Did you achieve it?

Thanks!

[nonost]

I've swapped the 22k resistor next to mix pot for a 10k value and I get more wet signal. But sadly the repetitions become unfiltered. I think I can try lowering the 2n2 caps.

[anotherjim]

I think it would work to disconnect the grounded lug (lug1) of the Mix pot and connect it instead to the output of IC2a pin1 and remove the 22k R4. However, there's a chance the 50:50 mix may sound quieter due to the total resistance of the mix pot being added to the 22k input to the output amplifier, in which case, try a 25k or 22k pot, but the designed 50K (or 47k) pot may be ok.
A 100% wet output is useful (maybe mandatory!) if the delay is used in a parallel FX loop, in which case simply add a switch to disconnect R4.