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Post by Chris on Jul 3, 2018 11:03:19 GMT -5
This is a great article with lots of pictures about Grado and how they still manufacture everything in Brooklyn. Very much worth reading if you don't know their full history. Grado article in Dwell-CB
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Post by speakertom on Jul 3, 2018 11:47:13 GMT -5
I'm not much of a headphone fan but that is a cool presentation. I did have a Grado phono cartridge at one time.
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Post by larrys on Jul 22, 2018 19:21:22 GMT -5
I'm not much of a headphone fan but that is a cool presentation. I did have a Grado phono cartridge at one time. I'm not a big headphone fan either, although I do have a pair of Grado SR60 phones that I like quite a bit - very light weight and comfortable. I've also had a few of Grado cartridges - in the '70's Grado produced some very inexpensive cartridges that sounded pretty good to me then. Joseph Grado wrote a series of articles on turntables, tonearms and cartridges in Audio in 1977. www.americanradiohistory.com/Audio-Magazine.htm has many issues of Audio on line. Larry
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Post by speakertom on Jul 24, 2018 13:50:13 GMT -5
I looked up that link and randomly selected one issue, May 1967. I was surprised to see a review of the Heathkit AR-15 receiver, the first stereo kit I built. I used it for quite a while and then removed the power amp section and used it as the basis for a car audio amp before they were available. I built a DC to DC converter to provide the 80 volts from the car 12 volt supply. ALmost blew out the rear window of the car on low notes. I continued to use the tuner and preamp section but eventually put it aside. I still have it for old times sake. This is a great link. Thanks.
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Post by larrys on Jul 24, 2018 19:09:13 GMT -5
I looked up that link and randomly selected one issue, May 1967. I was surprised to see a review of the Heathkit AR-15 receiver, the first stereo kit I built. I used it for quite a while and then removed the power amp section and used it as the basis for a car audio amp before they were available. I built a DC to DC converter to provide the 80 volts from the car 12 volt supply. ALmost blew out the rear window of the car on low notes. I continued to use the tuner and preamp section but eventually put it aside. I still have it for old times sake. This is a great link. Thanks. Glad you liked the link. My first "real" audio system was Dynakits, which were supplanted by Hafler kits eventually. Still have a few and they still work and sound pretty good. Little hint about the High Fidelity magazines, if you're interested in finding something specific (speaker review for example) and you have a good idea of its vintage, the December issue most years has an annual index (page listed in the table of contents). Probably my favorite periodical from that era is the Boston Audio Society Speaker (http://www.bostonaudiosociety.org/bas_speaker.htm) and (http://www.bostonaudiosociety.org/bas_speaker.htm#EARLIER). The equipment discussed, of course, is very vintage by now, but many of the discussions are very informative and great fun to read from a historical perspective.
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Post by speakertom on Jul 24, 2018 19:28:48 GMT -5
My first kit was an Eico HFT90 mono FM tuner with the 1M3 traveling exclamation point tube that showed when the station was tuned. How things have changed.
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Post by larrys on Jul 24, 2018 21:24:30 GMT -5
My first kit was an Eico HFT90 mono FM tuner with the 1M3 traveling exclamation point tube that showed when the station was tuned. How things have changed. FM? What's FM? My first tuner was a Dynakit FM-3 with the cat's-eye tuner. Is that the same as the 1M3 traveling exclamation point tube? Wish I still had it (only have an FM-5 with a boring meter). I do, though, have a Westrex AM/FM/SW tubed console radio with the cat's-eye tuner and a Tefifon player built into the top. Tefifon was a strange cartridge playback system that used a grooved plastic ribbon read by a stylus. Made in Germany beginning in the '40's - Westrex was a Western Electric division that marketed a stereo version of the Tefifon system in the mid-60's. The Westrex with the Tefifon is my oldest DAC (Deutsche Audio Cartridge).
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Post by speakertom on Jul 25, 2018 8:26:16 GMT -5
The cat's eye tuner tube was different. Here is a link that shows how the tuning worked on the HFT90.
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Post by speakertom on Jul 25, 2018 8:33:26 GMT -5
The Tefifon looks like another really good idea of the time that didn't make it. Too much competition from major labels that didn't want it and also record changers.
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Post by larrys on Jul 25, 2018 15:15:00 GMT -5
The cat's eye tuner tube was different. Here is a link that shows how the tuning worked on the HFT90. Now that is very cool.
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Post by larrys on Jul 25, 2018 15:20:14 GMT -5
The Tefifon looks like another really good idea of the time that didn't make it. Too much competition from major labels that didn't want it and also record changers. I'm sure that was the case. I found this from the Perpetual Gadgeteer , which compares the Tefifon to an LP. Tough to beat the Tefifon from a visually cool-looking, head-scratching standpoint!
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Post by larrys on Jul 25, 2018 15:23:25 GMT -5
The Tefifon looks like another really good idea of the time that didn't make it. Too much competition from major labels that didn't want it and also record changers. I'm sure that was the case. I found this from the Perpetual Gadgeteer , which compares the Tefifon to an LP. Tough to beat the Tefifon from a visually cool-looking, head-scratching standpoint! Lest anyone think that this thread has gotten off topic, both the Westrex and Grado were based in New York.
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