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| | Re: Eliminate high-speed derailments forever! (and possibly void your warranty)
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(...) Electronics is one of my hobbys,and i wanted to know how they (Lego) build there speed controller. In fact,its a basic application of the LM317 regulator. More info abouth the LM317 can be found in a data sheet book from National Semiconductor (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | FW: Re: Eliminate high-speed derailments forever! (and possibly v oid your warranty)
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(...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Re: Train doors and windows
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In my list from LEGO its 4117077 white/lt.blue (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Re: Eliminate high-speed derailments forever! (and possibly void your warranty)
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Ludo - - Thanks for the great analysis of the LEGO speed control! - Nick - ludo soete wrote: [snip] (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Re: Train doors and windows
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What's the piece number for the 1x4x6 trans-lt-blue "three-pane" townjr windows? KL (...) Christer Sunesson wrote: (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Re: Eliminate high-speed derailments forever! (and possibly void your warranty)
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(...) that's (...) transformer (...) I just opened a LEGO TRAIN SPEED REGULATOR and drawn a shematic of it. I did this once before but lost the paper. Now to the point: The INPUT of the regulator may be an AC or a DC signal. Even reversing the (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Re: Eliminate high-speed derailments forever! (and possibly void your warranty)
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Actually, lowering the voltage would lower the current draw too with a constant load. Of course a motor is anything but a linear load, and it does tend to draw more current at slower rpm. In any case, you're not going to break it, since the 9v train (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Train doors and windows
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Hello I have a friend at LEGO Denmark that i can order LEGO pieces from. I ordered piecenumber 4181,4182,8183,4033,...4511,4510. He said that they didnt have it in stock. Now i wonder if their are any one ho wants those pieces. If ther are a hugh (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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| | Re: Eliminate high-speed derailments forever! (and possibly void your warranty)
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(...) that's (...) transformer (...) transformer (...) by transformer do you mean the lego speed controller? If it's a yes there is no problem feeding it with 7.5V DC. The input will accept 9V to 12V AC or DC for full performance (0V to 9V at the (...) (25 years ago, 23-Aug-99, to lugnet.trains)
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