jazman Posted October 23, 2002 Share Posted October 23, 2002 Why is it when I plan to change networks in my Belles, my darn tweeter diaphram goes belly up? Does anyone have a K-77 they are willing to sell? BTW, I noticed this just last night. Tried all other troubleshooting possibilities hoping for a simple fix. By disconnecting all horns I was able to determine no response from the one tweeter. Klipsch TS believes its only the diaphram. HELP?!? Klipsch out Quote Link to comment Share on other sites More sharing options...
mobile homeless Posted October 23, 2002 Share Posted October 23, 2002 Damn, Edmond! I hope someone has one. Get TWO used matching vintage units and use the other as abackup! I saw some really nice K77 (with horns) go on ebay awhile back for a respectable price. Good luck! kh Quote Link to comment Share on other sites More sharing options...
Chris Robinson Posted October 23, 2002 Share Posted October 23, 2002 I've got two with the square mud-magnets but both need new diaphragms ... Actually, it's a lot cheaper just to swap out the diaphragm and not hard at all. There were lots of threads on the subject, but I've done it four times so email me if you need help. robinsonc@attbi.com Quote Link to comment Share on other sites More sharing options...
jazman Posted October 23, 2002 Author Share Posted October 23, 2002 I think I get the idiot of the year award for this. I've been so careful doing things all this time that I lost sight on the most simple thing. After noticing the lousy sounding issue last night, not enough time and need for sleep put it off until this morning. Not enough time before leaving the house to do serious evaluation. Rushed home early just to deal with the problem, more POed than analytical. I could not imagine the problem might be with my preamp since it was checked at the factory just before I received it. I replaced every tube in my amps after finding little to no response from the one tweeter. Scurrying too fast to be methodical or thoughtful. With 27 year old speakers, it had to be the speaker. Wrong! After sending the SOS, I sat dejected. After some moments of pondering, I lugged my Heresys downstairs and connected them. Same problem in one channel. Two speakers, no way. I then pulled and replaced every tube in the Cary. A bunk 12AU7, a Telefunken?? They are never supposed to go bad. Now it's on to the tube tester to find the one of two it has to be. I can't believe I did not do this earlier. Having things work well with no problems for too long spoils your ability to think through problems,..I guess?! DUH! Sorry for the false alarm. All should be well shortly. Klipsch out. PS. Kind of makes me want to do a overhaul of my speakers,.. just because....my luck with no failures can't last forever. Quote Link to comment Share on other sites More sharing options...
jazman Posted October 28, 2002 Author Share Posted October 28, 2002 Just want to finish this off. The problem was a bad GZ-37 rectifier tube. Considering the pair of GZ-37s were less than 9 months old they were my last suspect, and my tube tester was bought before the Moondogs, so no 5AR4 test setup. I am now using a pair of Amperex 5AR4s. A side bar to this problem was rolling my Cary preamps 12AU7 Telefunkens for Mullards I had previously used. There's a noticeable difference in the sonics of the Tele's and Mullards. More midrange richness from the Mullards, more low end extension from the Tele's. It's almost like having two different systems. What a difference a tube makes! Klipsch out. Quote Link to comment Share on other sites More sharing options...
edwardre Posted October 28, 2002 Share Posted October 28, 2002 Mr Jazman.... Strike quick!! There are SEVERAL T35's on e-bay right now for a 'Buy-it-Now' price of $30 apiece!! Just search in the 'consumer electronics' section with "EV". I think that these will go very quick. Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted October 28, 2002 Share Posted October 28, 2002 two of them just went very quick. As soon as I saw them. EV T-35's These look exactly like the K-77-V in my virgin '77 Heresy's. $60 for the pair? Sold now. I can get a diaphragm. Just in time too, I sold the K-77-M's I've been using, need to ship them today. What are those red ones on there? Tom Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted October 28, 2002 Share Posted October 28, 2002 kinda funny, there's another guy on there with 4 for a BIN of $395. Sorry. Tom Quote Link to comment Share on other sites More sharing options...
jazman Posted October 28, 2002 Author Share Posted October 28, 2002 Thanks guys, but replacing the rectifier brought the speaker back to life, or should I say that channel returned to life. Without a doubt I am going to slowly start gathering the spare parts needed just in case I have need for a serious overhaul of my Belles. At the moment "It's all good". BTW, Klipsch wants $90 for a diaphram. Klipsch out. Quote Link to comment Share on other sites More sharing options...
mike stehr Posted October 28, 2002 Share Posted October 28, 2002 That's cool. It's not a good thing to lose a rectifier tube, but swappin' out a tube is better than swappin' a tweeter diaphragm. Quote Link to comment Share on other sites More sharing options...
Tom Mobley Posted October 28, 2002 Share Posted October 28, 2002 Hmpf. I did the BIN on a pair of tweeters for $60, but the guy hasn't answered my emails yet. I've got a bad feeling abpout this.... He has two others up as singletons also, wonder about that. Tom Quote Link to comment Share on other sites More sharing options...
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