ADD REVERB IN #124 SCHEMATIC

[sergio]

Hi , I want insert this reverb in my amp , I do not know exactly where to connect power supplies .

I thought: (B+ 440V watch scheme) at first node after choke and power for Recovery(B+ 326 watch scheme) in other node but I don't know what.
I have doubts...

Have some idea?

Thanks Sergio

[txbluesboy]

On my SSS Texas style , I tied the reverb driver ( B+ 440V) to the screen supply. Then added another node with an additional 10 K ohm resistor and 22 uf cap, between the PI node and the OD node. I used this same reverb circuit and it sounds great. For R10 I used 10K ohm.

[fp2000]

For R10 start with a value between 47K and 27K. You have to calculate the power dissipation on the tube so you won't fry it with the higher voltage. Just keep that in mind. I put mine just after the master and before the PI. It works great. You can also experiment with the mix resistor, I believe the default is 220K, but if you want more reverb you can lower it.

[Bob-I]

For R10 start with a value between 47K and 27K. You have to calculate the power dissipation on the tube so you won't fry it with the higher voltage. Just keep that in mind. I put mine just after the master and before the PI. It works great. You can also experiment with the mix resistor, I believe the default is 220K, but if you want more reverb you can lower it.

Actually if you want more reverb you raise the mix resistor. 220K should give you plenty of reverb. The tank has a big effect on the amount of reverb as well. For a long reverb decay the Ruby #3EB2C1B from Mojotone can't be beat, for a more normal length reverb the small take 3 spring #P-R8EB2C1B Accutronics from AES is excellent.

[fp2000]

You are correct Bob. Thanks for making the correction. I did end up with 220K, with a short tank, 3 springs. However, for me 220k is more than I need.
Thanks
Frank