Subject:
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Re: RCX IR Transceiver Circuit
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Wed, 29 Dec 2004 18:56:23 GMT
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Viewed:
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6218 times
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perhaps I have the connection of the 1k resistor wrong - it would make more
sense for it to be to the collector of the 6Cp transistor, rather than to its
base. This would remove my previously perceived problem of a residual
current through the IR LEDs. Another look at the circuit board confirms
this. I’ll revise that when I add the data (soon in the new year).
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Indeed, you probably had something wrong there: I checked the battery of a
serial tower I didn’t use for a very long time, it was still fully charged.
Philo
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Message is in Reply To:
 | | Re: RCX IR Transceiver Circuit
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| (...) I can verify the data on all but the zener and 6Cp transistor. I intended to put it in a text file with the diagram, but I'll add it to the diagram instead. The 1Kp and 3Kp transistors have equivalents of BC548B and BC558B, which are common (...) (20 years ago, 28-Dec-04, to lugnet.robotics.rcx, FTX)
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