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| Subject: | LF: RE: Re: 137kHz transmitters |
| From: | <[email protected]> |
| Date: | Fri, 25 Jun 2010 22:12:56 +0200 |
| Importance: | Normal |
| In-reply-to: | <7AF07D1077DD4E3BB747C76507077BB5@MLB> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
very ""modern"" 74ls393 73 Victor PA3FNY -----Oorspronkelijk bericht----- Van: [email protected] [mailto:[email protected]]Namens Martin Evans. Verzonden: vrijdag 25 juni 2010 19:39 Aan: [email protected] Onderwerp: LF: Re: 137kHz transmitters > 3560 and 3579kHz, both cheap crystals, divided by 26, give CW and QRSS > frequencies on 136/137kHz. What is the simplest and cheapest way of getting > divide by 26? > > 73s > Roger G3XBM Well, forty years ago the answer would have been a couple of 7490s, with which you could divide by any number twixt 2 and 100. Is there a modern equivalent I wonder? Martin GW3UCJ. |
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