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Miracle Y won't work on 6 volts. Why?

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Old 10-19-2003, 10:09 AM
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CAP232CM
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Default Miracle Y won't work on 6 volts. Why?

Works fine on 4.8 volts but on 6 volts one servo jitters like crazy. I have three of these Miracle Y's that they claim will work on 6 volts but none of them will. What to do? Thanks!
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Old 10-19-2003, 10:53 AM
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Default RE: Miracle Y won't work on 6 volts. Why?

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Old 10-19-2003, 09:08 PM
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Default RE: Miracle Y won't work on 6 volts. Why?

Wow, that's weird. I have 2, both on 6v (all I use) and they are fine. I also know of at least 2 others in my area. I'm thinking there is annother problem. But that's just my experience.

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Old 10-20-2003, 12:59 AM
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Default RE: Miracle Y won't work on 6 volts. Why?

Quote:
Works fine on 4.8 volts but on 6 volts one servo jitters like crazy. I have three of these Miracle Y's that they claim will work on 6 volts but none of them will. What to do?
What type of radio system and servos? Are these Miracles designed for the specific brand equipment your utilizng?
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Old 10-20-2003, 04:56 PM
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Default RE: Miracle Y won't work on 6 volts. Why?

Radio is a Hitec Eclispe7, 3800 reciever, 425BB servos. The Y's say for Hitec/JR 4.8 to 6 volts. The Y's are MPI's. Thanks!
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Old 10-20-2003, 08:25 PM
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Default RE: Miracle Y won't work on 6 volts. Why?

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Radio is a Hitec Eclispe7, 3800 reciever, 425BB servos. The Y's say for Hitec/JR 4.8 to 6 volts. The Y's are MPI's.
The connectors maybe Hitec/JR compatible. The Miracle wyes electronics or design parameters must be designed to be used with Futaba/Hitec RX equipment or whatever you specifically use. The brand to brand requirements are different when considering the use of amplified wyes or extensions. Thus your problem on 6V I suspect.

All receivers have a voltage regulator onboard to protect their ICs. The output level of the control signal going to the servo is not the same from JR to Futaba/Hitec. JR receivers output the full battery voltage on the servo signal line. Futaba/Hitec receivers output about 3.3V to the servo on the signal line. All receivers pass the full input voltage to the servo power lead.
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