[elrules]

Thanks for your posts. I have now the ideas clearer.This thread and http://www.vdrums.com/forum/showthread.php?p=261412#post261412 has helped me a lot.

The only thing now is to receive my piezos and make my own pads and try to build this circuit to make them work

[elrules]

Somebody there?

[elrules]

ORIGINAL: PFozz

The “rim detection” part of your circuit 2 seems to work.
Try to connect the rim piezo “+” (ceramic part) to the tip of your stereo plug.

Best.

Do you mean I have to connect the two “+” of the piezos with a wire? or with a diode like circuit 1/3?

It seems you know how the circuit exactly works. I would appreciate if you could give a technical explanation about each part of the circuit, what do they do, etc. That information would be very very useful to me because then I could be able to change component values with the knowledge of what I’m changing, or to add or remove parts of the circuits to achieve what I need.

(Thanks for all of your replies)

[elrules]

Of course I can. The PD-8 and CY-8 pads are that, piezo + switch, and they work with 2 sounds in those inputs, head and rim.
But I have build all the 3 circuits and as I said here before they hasn’t worked.
Circuit 2 has near 0 sensitivity on rima and Circuit1/3 gives me the same sound (the one from the head).
 and i don’t know what to do.

[elrules]

In the TD6 module, inputs 5/6 and 7/8 are splittable with a simple Y cable from stereo jack to two mono jacks. But input 4 and others are not splittable. That is the reason for me to be here posting and trying to get a response. To be able to split an un-splittable input cheating the module. I think this is the purpose of the circuits in this thread. But it seems people have tested them with Yamahas and high end Roland modules, but not the TD6, which is the one I own.

[elrules]

I have checked the circuit. Referring to the input pad type. The TD6 can’t assign a different pad type for the rim on a piezo/switch input. It’s obvious you have to choose an stereo pad type for the input in order to “cheat” the module. The types selectable are PD type, PD-8, CY type, CY-8, KD type, KD-8, PD-80R, PD-120, PD-125, RT-7K, RT-5S, and RT-3T.

But it’s not working. I know that with TD-20 and TD-12 the inputs are splittable
just adding a 100k resistor between tip and ring, but for inferior modules, like TD-6 this simple cable is not possible. Has any of you tried this circuits with a TD-6 module?? I need help :'(

[elrules]

circuit 1 and 3 (they are similar) replicate head sound in both pads so it does not divide

The circuit 2 is the one which does not give enough sensitivity. I have tried circuit 3, which has a pot in R1, none of the values in its range makes it better, the signal replicates in both pads. I mean, when I hit the pad connected to rim I get exactly the same sensitivity that with the head pad, but also the same sound, although I configured two different sounds for head/rim.

Maybe you could explain me how the circuit 3 works, saying what is the function of each component, and what is their goal. Maybe that way I can change their values so I can adapt the circuit to a Roland input, because it seems that it is designed for Yamaha inputs.

[elrules]

Hi again. What I want to do is conect two mono pads to one Roland TD6 input (for tom1 and crashes inputs, because tom2 and tom3 are able to do that without strange circuits)

I have tested connecting two PD-8 with all of your 3 circuits but none of them work. Circuit 2 (piezo/piezo to piezo/switch) divides but the sensitivity of the pad on the rim connector is awful, you have to strike it with a hammer to be able to hear something, nearly I can hear nothing. And circuit 1 and 3 (they are similar) replicate head sound in both pads so it does not divide.

I have been testing voltage coming from the PD-8 pad when I hit it on rim and head.
When I hit head, the tip and the ring give up to 30 mV. When I hit rim, the tip gives from 3mV to 5mV (less range) and ring gives from 0 to -2mV.

I don’t know what to do. I’m getting mad with all my failed attempts.

Maybe someone has achieved to connect 2 mono pads to roland dual inputs, please help me!

[elrules]

Does anybody know which of the 3 circuit designs (1st schematic, 2nd schematic, boxed PDF schematic) is better? Pros and contras?

The 2nd schematic does NOT work with Roland TD6 module. You have to hit the rim pad too strong and the sound is soft 🙁

Maybe the 3rd schematic??

Does anybody have proved them with roland?

Where did you find info of how are the signals for the Yamaha triggers?
Can I find info of the signals for roland pads?

:'(

I need help!!

[elrules]

I have a doubt. Does this adaptor work for splitting the piezo/switch Roland TD6 inputs (i mean tom1 and cymbals) so you can connect 2 mono pads in one input?
Has anybody achieve that? In an spanish forum people tried your design but the told one pad had to be stroken very hard to get even a low low sound.
Please, help!

[Author]

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