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Old 2006.05.06, 08:11 AM   #1
doongas
WRX STi Drifter
 
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newbie various crystal set questions

hello i don't know much about crystal in RC world and i have few questions about the crystal sets in the mini-z

1. i bought the brand new mini-z overland and it contained Tamiya QD crystal in the car, its size bit longer than mini-z ones. car works fine and KT-5 have kyosho one.. but, is it normal to have tamiya QD crystal in overland?

2. i tried using the Tamiya QD crystal(from overland) in my mr-015, and driving feels bit different, acceleration was maybe slower when i pulled the trigger and i had to pull the trigger more to get the same acceleration.. i am asking this question because previously i asked if overland crystal set was compatible with other mini-z cars and the answer was yes..

3. i bought a used mr-01 from ebay and the car had band 12 27.255mhz crystal and the transmitter had band 6 27.255mhz. could it be the seller mixed it up? anyways the car works fine, but are they different crystals? 27.255 number is same but why the band number is 6 and 12?

4. i can still control the car when different frequency crystals were installed for car and the transmitter, but the cars steering goes berserk, before i thought different frequency crystal between the transmitter and the car would not make the car move at all.. so is this normal?
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MA-010 chassis Subaru WRX STi Type R
Kyosho Ti64 center shaft
Kyosho Al motor mount
3Racing Al motor cover
Atomic Al rear toe 1deg
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Old 2006.05.06, 08:15 AM   #2
Draconious
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The brand used does not matter, however its a good idea to have both crystals the same brand, just incase the brand sourced them from different places than each other, often they are perfectly fine to mix and match, but say in the case of the xmod the channel frequencies are slightly off... as long as the MHZ number is the same it should work fine... your slower car is likely something with the car itself not the crystals...

please see this for the funky crystal numbering system, the reason why its best to go buy the actual mhz of the xtal rather than the color or number on the label..... the reason why 6 and 12 are sometimes the same crystal, and sometimes not
http://www.quantumrc.com/Mini-Z/A_Frequencies.html
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Old 2006.05.06, 08:22 AM   #3
doongas
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thanks for the very fast reply!
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MA-010 chassis Subaru WRX STi Type R
Kyosho Ti64 center shaft
Kyosho Al motor mount
3Racing Al motor cover
Atomic Al rear toe 1deg
Yeah Racing ball bearings
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