Mesa Mark V Reverb Depth/Mix increase

[beedoola]

I wanted to know if there is a way to increase the wet mix on the Reverb. I upgraded the reverb pan and that helped but even with the Reverb mix all the way up it still isn't as wet as I'd like it to be.



https://pdfslide.net/documents/mesa-mar ... matic.html

[thetragichero]

my gut says either increase r60 or decrease r59
easy test is parallel a 33k resistor to r59. that would approximate a 10k resistor

[Stevem]

Increase C29 to 22 to 25 uf.

[pdf64]

With just a ratty little 12AX7 section, Boogie reverb circuits can't drive much nearly as much power into the tank as Fender reverbs that use a parallel pair of 12AT7.
I'd look at trying a JJ ECC823 to push more signal into the tank (and linking out the R58); then you've got more chance of getting a decent signal out of it
May benefit from tweaking the bias for the ECC82 drive section.

[thetragichero]

12dw7 is so great for single tube reverb (generally using organ salvaged tanks with higher input impedances so i have yet to use a transformer-driven reverb)

[beedoola]

Increase C29 to 22 to 25 uf.

Do you mean to 22 or 25uf?

With just a ratty little 12AX7 section, Boogie reverb circuits can't drive much nearly as much power into the tank as Fender reverbs that use a parallel pair of 12AT7.
I'd look at trying a JJ ECC823 to push more signal into the tank (and linking out the R58); then you've got more chance of getting a decent signal out of it
May benefit from tweaking the bias for the ECC82 drive section.

What do you mean by "linking out" R58?

[sluckey]

Do you mean to 22 or 25uf?

Use one or the other. Heck, even use a 47µF. The idea is to use a bigger cap and the driver gain will increase.

What do you mean by "linking out" R58?

Replace R58 with a piece of wire.