Deadringer Updates?

[mjcyates]

Brian, any updates on the Deadringer issue?

[madbean]

Marvin,

I'm getting all orders out today, which will let me work on that tonight. I will do my best to have the fix posted here tomorrow.

Thanks for you patience--I know it is taking a while.

Brian

[mjcyates]

No problem Brian. I know you have your hands full. I really like what you have going on here.

[mjcyates]

Brian,
In the project documentation for the Deadringer you make reference to this forum for directions on how to correct from ver1 to ver2. Have you posted this yet?
Thanks,
Marvin

[madbean]

Ah crap! I'll get that up later today. Thanks for the reminder. I'll link it from this thread, too.

[mjcyates]

Thanks Brian, aside from the wiring changes and layout changes, it looks like there were 3 component changes as well. R15 150k -> 510k, C4 100p -> 51p, and C9 1n -> 10n. Are those changes going to have a significant effect on the tone?

[madbean]

C9 will have a more noticeable change than any of the others. I'm still working on this. It's actually a bit of a bugger. I've got everything working as it should except the FM mode. I'll get back to it in the morning and finish up.

[mjcyates]

Yeah I was comparing the two project files and it didn't look like it was going to be a simple fix.

[madbean]

Once you break down the changes, it's not too bad. A few misplaced wires. But, due to the fact that I reversed the order of the drive and boost pots, it seems to be causing some issue with getting that FM option to work. But, I will keep at it today to find the absolute simplest fix. Hang tight!

I feel pretty dumb for screwing this up. I realize now I rushed this one out too soon and should have taken more care with it. But, it's a good lesson to learn....hopefully no one is too upset. My track record is still pretty good, otherwise 

So far the fixes are these:
Consider the DPDT (on/on/on) two columns, labeled A1-A3, and B1-B3
S1: connect to A2
S2: connect to B2
S3: leave unconnected
S4: connect to B1
A3: connect to A3 on the 3PDT

And the actual positions of the switch would be (top to bottom) VIN/FM/CC

But, this isn't quite right...so don't try it yet!

I'll have an actual diagram done once I crack this last part.

[mjcyates]

Thanks Brian, your track record is just fine, I will wait for the diagram.

[mjcyates]

Brian, for the new component values is 470k a suitable replacement for the 510k resistor? Also for C4 I do not have a 51p cap, however, I do have a 33p and a 100p. Which cap would be the best, I assume the 33p?
Thanks!

[madbean]

Brian, for the new component values is 470k a suitable replacement for the 510k resistor? Also for C4 I do not have a 51p cap, however, I do have a 33p and a 100p. Which cap would be the best, I assume the 33p?
Thanks!

There is no discernible difference tone-wise in using 470k in place of 510k. If you have two 100pF, place them in series. That will give you 50pF. If not, I would actually go with just the 100pF. 33pF is too small, IMO.

And here is the link the corrections I just posted: http://www.madbeanpedals.com/forum/index.php?topic=186.msg837#msg837

[mjcyates]

Thanks Brian, looking forward to getting this one back up and running.

[mjcyates]

Got everything back in order and running yesterday. Definitely sounds better than before and all functions appear to be working as expected. I went with 470k for the resistor and 100p for the cap. I ended up yanking out the 1n34a diode. I always think those tend to muddy up the tone. Thanks for your efforts Brian.