dual valcaster question

[Renegadrian]

I added a new VERO version with that correction - it should work - Please check it out!!!
In the LAYOUT GALLERY search for TWINCASTER.

PS actually it's 2 layout, with and without the R1 at the beginning at the second stage.

[alcoloic]

hi everybody thanks for all the answers
yeah it's much better with the second r1
frequencycentral thank you ! you made me realise the wallwart i was using was only 200 ma !!!
i always use my fx with different sources (bass guitar synth sampler etc ) so i have already put two switch for mods ! if anyone has a suggestion
anyway thanks a lot everybody

[Renegadrian]

yeah it's much better with the second r1

So did you try with and without R1b having the right wall wart???

[frequencycentral]

frequencycentral thank you ! you made me realise the wallwart i was using was only 200 ma !!!

i always use my fx with different sources (bass guitar synth sampler etc ) so i have already put two switch for mods ! if anyone has a suggestion
anyway thanks a lot everybody

Try an R1 value of 100k for synths, and perhaps 5M to 10M for microphones, depending on the type. Try it and tell me your results!

[mitzrecords]

hi, just wondering if anyone else built this thing.

I just built single one and love it! but i wanna more gain. i wanna try this.

if you have pics or layout would be much appreciated to guide through and double check.

thanks bunch.

ps im so addicted to building pedal. i spent too much money on parts last three weeks

[Renegadrian]

if you have pics or layout would be much appreciated to guide through and double check.

As I wrote above, In the LAYOUT GALLERY search for TWINCASTER.

[mitzrecords]

if you have pics or layout would be much appreciated to guide through and double check.

As I wrote above, In the LAYOUT GALLERY search for TWINCASTER.

oops, sorry. got it!

thank you!

[kurtlives]

Ive been playing with a design similar to this for the last two nights on the bread board. Getting great results...

Ditch the pots on the cathodes, no idea why you would want them on a cascading circuit like this. Instead I replaced them with 16K resistors, you could use lower values for more gain. I am also using a DIP switch to add a cathode bypass cap in parallel to those resistors, gain boost switch!

Anyways to add the gain control I am just adding a variable voltage divider between the two stages, essentially a volume control. Also between the two stages I added a tone stack.

Also with all these stages cascaded I needed to adjust the coupling networks. Cut most cap values in half. Also reduced the plate resistors value, more so in the first stage.

Also I have the heaters running at 12V regulated and the rest at 30V regulated. Sounds amazing, a good step up from 12V. Lots of tone, I dig.