It won't work the way you want. A parallel / cascade switch means it changes the way the input V1 works, when V1 is used for only 1 channel.pummpy wrote: ↑Sun 01/31/21 3:36 pmThanks , yes . Would like to do the Parallel-Cascade switch .
Main question i have is Do i mod the TMB input or The Low Hi input jacks as there are two there and TMB has one input jack .
I see the the Modded input jack goes to Pin2 V1 where my Hi Low input goes to that pin on V1 that has two input jacks . Do i eliminate both jacks if using that input and replace with one input jack as shown in mod ?
Hope i am making sence .
Your build is using V1 for both channels, and the TMB channel already uses V2 as a cascaded gain stage.
If you look at a different circuit like a Lite 2b, you can see that V1 uses both halves for the same input(s). In that case, V1 can be used either as a parallel tube (V1a and V1b connected in parallel together), or it can be cascaded with one half of the tube being fed to the other.
If on the other hand, you wanted to modify the TMB channel so that the cascaded V2 could be switched to parallel instead, you could do that.
Another option would be to remove the TMB channel input from V1 and insert it on the first half of V2, and change the wiring for V2. This way the non-TMB channel could have a cascade/parallel switch. But this is probably more work than it's worth.
Take a look at a few different schematics (including the switch schematic in this thread) so you can see what parallel or cascaded tubes look like in the circuit.
Thanks,
Josh