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zero point micro at 12V??

Started by copachino, December 12, 2014, 02:17:22 AM

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copachino

hi all, where or what reg do you recomend me to run a zero point micro with 12 volts??, i got full my power stack for 9v and only have the 12v spot
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RobA

The regulator still needs to be a 78L05. The max supply voltage of the PT2399 is 5.5V (5.0V typical), so you need to stick with the 5V regulator. As far as the 12V supply goes the 78L05 can handle around 30V on the input. But, by going to 12V, you're going to be wasting more power. It won't be a huge amount more because the PT2399 doesn't really use a ton of current, but it will waste more with no real benefit. It might be better to move something to the 12V spot that would get something out of it.
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copachino

umm still do you think all filter will work properly??, i know its a waste of powe, but i wouldnt like to move another pedal that doesnt have a reg inside to the 12v spot, i was thinking by other reg, a high disspation reg or a reg on the input the the 12v to regulate the power to 9v
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RobA

The filters in the PT2399 are going to be the same. Passive filtering stages should be the same. The TL072 will be working the same. It'll have a bit more headroom, but that really isn't going to get you anything because it's not a limiting factor to start with.

If you are doing the V1 version of the ZPMicro, the LFO from the TL062 is likely going to need some modification. I'd have to sit down and really think about it, or simulate, or breadboard it, but I'd guess the output swing at the least is going to be greater so the resistor feeding the "TIME" control section, R19, might need some modification. There might need to be some other mods too in the LFO section to make it work as designed at 9V.
Affiliations: Music Unfolding (musicunfolding.com), software based effects and Rock•it Frog (rock.it-frog.com), DIY effects (coming soon).

copachino

Quote from: RobA on December 12, 2014, 12:13:35 PM
The filters in the PT2399 are going to be the same. Passive filtering stages should be the same. The TL072 will be working the same. It'll have a bit more headroom, but that really isn't going to get you anything because it's not a limiting factor to start with.

If you are doing the V1 version of the ZPMicro, the LFO from the TL062 is likely going to need some modification. I'd have to sit down and really think about it, or simulate, or breadboard it, but I'd guess the output swing at the least is going to be greater so the resistor feeding the "TIME" control section, R19, might need some modification. There might need to be some other mods too in the LFO section to make it work as designed at 9V.


No LFO zpm2 its The one so id vive ir a shot at 12v when bits finish hace todo solder it today Black friday kill me on the Shipping times
Affiliations: madbeanpedals fan and pedal porn lover....

madbean

Quote from: RobA on December 12, 2014, 12:13:35 PM
The filters in the PT2399 are going to be the same. Passive filtering stages should be the same. The TL072 will be working the same. It'll have a bit more headroom, but that really isn't going to get you anything because it's not a limiting factor to start with.

If you are doing the V1 version of the ZPMicro, the LFO from the TL062 is likely going to need some modification. I'd have to sit down and really think about it, or simulate, or breadboard it, but I'd guess the output swing at the least is going to be greater so the resistor feeding the "TIME" control section, R19, might need some modification. There might need to be some other mods too in the LFO section to make it work as designed at 9V.

In this design, I do not think the LFO will need to be modified for two reasons: R19 is already quite high to limit the depth of modulation and the modulation itself keys off the higher than normal "stopper" resistor rather than the entire range over the Time pot (meaning a higher voltage supply won't make the modulation swing too far in this case). I would try it as is at 12v first before committing to any changes. Maybe socket R19 and/or R25 in case the Vr supply needed to modded to a lower voltage. But, I think it will be okay as is.