Saturday, December 7, 2013

But we had that all before ... I think it is less about a fundamental discussion, but rather to web


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I still know the models Naim NAT01 http://www.pinkfishmedia.net/forum/showthread.php?t=68968 http://www.hifishock.org/galleries/Naim/ ... / NAT-01 --- first jpg and Meridian 104 http://www.meridian-audio.info/viewphoto.php?compid=164 got along only with a 6-circle block filter (240 kHz bandwidth), purification of water had very good sound, but could have only a low selectivity (unfortunately with diode tuning) Other well-known representatives without ceramic filter at 10.7 MHz amplifier purification of water (and variable capacitor in the front-end) were the FM-2002 by Klein & Hummel and its predecessor FM-2000 (Saba Telewatt) http://www .fmtunerinfo.com/FM2002inside.jpg http://saba.magnetofon.de/showtopic.php?threadid=3113 purification of water http://saba.magnetofon.de/bildupload/IMG_0025a.JPG Here was the compromise between still sufficient selectivity and best sound quality in my opinion optimal purification of water (from the point of view of the 80s and 90s, where the density of stations was lower than today). Even better, the IF circuits could have been out of the R & S ball receivers The disadvantage of ceramic filters is the parameter variation caused by aging. To what extent SAW filters - which were common in the television industry - have also been used in IF amplifier for hi-fi tuner, I do not know. Who knows such an overview? Thanks for a hint.
Tuesday 22 January 2013, 13:05
I must strongly warn against throwing the FM 2002 and the SABA in the same pot! Yes, I emphasize that the compromise between sensitivity, selection and hit optimal distortion / sound in FM 2002. This tuner with SABA to put this regard in a pot, I think is wrong. For the received power / sound of Sabas is significantly worse. I own both, so reports from experience, not just by reading books. Who calls the FM 2002 could also call the FM 3003. The additionally used herein, narrow stage with quartz filters is indeed switched off. So also a metric of Restek is a pure LC tuner. The Revox B261 is also one of the "only" LC tuner. purification of water The same applies to the B760. But this is well known. Both units I guess. And of course the Sequerra Model 1 FM, as well as its predecessor Marantz 10B. A good tuner, the surface acoustic wave filter unfortunately now causes problems is the SANSUI TU-X1. Also, the ST 9038 by Technics had one. And the? But we had that all before ... Stay tuned Ralph
But we had that all before ... I think it is less about a fundamental discussion, but rather to websites on the issues tuners.
... and which are dynamic, that is, once linked here and change the web address in most cases, purification of water the search will be in vain. Then maybe use a list by name, and the search function at Google. Stay tuned Ralph
I must strongly warn against throwing the FM 2002 and the SABA in the same pot! Stay tuned Ralph As I mentioned earlier, are subject to an aging process and ceramic filters used in FM tuner, equipped with it I think is problematic. That's why I throw all tuner with LC circuits in the IF amplifier first time in a pot. The betw the mentioned types must exist substantial differences in sound derives from the simple fact from which is in FM2000 on a fully discrete ZF-Verst./Stereodecoder in use in the FM2002 and the Valvo type TCA420A and the Motorola MC1310P type - a (for that time) highly integrated circuit (note in this respect purification of water also the age difference).
But we had that all before ... I think it is less about a fundamental discussion, but rather to websites on the issues tuners. exactly. In pricing midfield Incidentally, there were not too many FM receiver without ceramic filters in conjunction with good reception and sound results, since the development and calibration effort was even then only by a few under control. Therefore, the most expensive models purification of water such as the under http://home.comcast.net/ ~ leesonic/AK/KT-7500upgrade01.jpg purification of water Murata ceramic filter 10.7MHz (pictured CF1-5, red, with intermediate FM IF amp had IC LA1222/μA703) Two further models without ceramic filters could have been the "T21" (predecessor of the "T22") of KS-Electronics (KITCHENS) and the FM-IF section in the receiver "KS-Dig

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