Article View: sci.electronics
Article #3503Re: wanted - infrared remote control repeater
From: Ken Tindle
Date: Wed, 25 Oct 1989 12:33
Date: Wed, 25 Oct 1989 12:33
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Radio-Electronics May 1989 has a circuit that does what you want- but my experience is that the pickup stage is not very good. One needs to change the phototransistor to a photodiode design with an IR filter in front. A reasonably good IR filter can be made from an exposed piece of color negative film. An alternative is a darlington phototransistor. Oh, and Rat Shack has in some stores now something that looks like the front end IR receiver from a VCR; one could possibly use it (it's cheap!) but I haven't got one yet, so I'm not sure how good they'd be for this. --------------------------\ /------------------------------------------ INTERNET:tindle@ms.uky.edu | "I heard you." -Kirk BITNET:tindle@ukma.bitnet | "He simply could not believe his ears." Ken Tindle - Lexington, KY | -Spock, The Trouble With Tribbles --------------------------/ \------------------------------------------
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ukma!tindle From: tindle@ms.uky.edu (Ken Tindle) Newsgroups: sci.electronics Subject: Re: wanted - infrared remote control repeater Keywords: remote, ir Message-ID: <13043@s.ms.uky.edu> Date: 25 Oct 89 12:33:35 GMT References: <254@sea375.UUCP> Reply-To: tindle@ms.uky.edu (Ken Tindle) Distribution: usa Organization: U of Kentucky, Mathematical Sciences Lines: 16