Problem with CCSIC in Tubelab SE
hi, I am a newbie in building tube amps although I have some experience fixing tube radios. This is my first attempt building Tubelab SE amp. I have just started to populate the board. Have installed...
View ArticleEqualizers vs P-Filters
Okay, I get it, using an equalizer can cause more harm than good. No trolls, no flame wars please. I have a tri amp system with a TDM CX 24 active crossover, 24dB/oct LR topology. Everything's working...
View ArticleLJM L25D Module on lower voltages?
Everything about the L25D module looks good...except the recommended voltages. Supposed to require +/-60 to +/-80, and after filtering I expect to have around +/-55V, maybe a volt or two more. Anyone...
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Stands for my A10P's
I have alluded to a pair of subs for a FAST system with any of the Alpair drivers. Well, here they are!! Since the subs are intended to be stands for the satellite speakers, the physical dimensions are...
View ArticleIs DC offset a problem for a preamp volume control?
In the "Simplistic NJFET RIAA" thread, I suggested output coupling caps were not required if the preamp which you were feeding the signal to, has an input coupling cap. One poster came back with what I...
View ArticleToroidal trans choice?
I was wondering if one is any better than the other. The Antek is cheaper but, how does it compare to the Avel.
View Articlemultiple woofer
Hi all :) I am thinking of a new speaker project. Not that I need another one, but there is something that escape me.... I have this idea revolving around the Silver flute 8" woofer. I already built a...
View ArticleGrid is Referenced To Ground through resistor? WHAT?
in The schematic below https://www.dropbox.com/s/kjj7xz205q...pAnodeLoad.JPG The text that goes with it says; "The Grid represents no load to the incoming signal. The grid is referenced to ground...
View ArticleSubwoofer design choice
Well, I have been lurking long enough, reading posts, but thought I would just ask the question, as I could not find exactly what I was looking for. What I am looking for is to really pick up the...
View ArticleMemphis 1000D
ok I have a Memphis 1000D amp im working on and I was wondering if anyone knew of some good power supply and output fets from mouser for a exact replacement spec wise to the original ones I hear the...
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Fender Studio Bass (Super Twin) Heater System Issue Advice?
Hi, New poster here looking for some advice on this Fender Studio Bass amp I'm restoring. If you're unfamiliar with the amp it's basically a Super Twin slightly reconfigured for bass. I'm having a...
View ArticleWTB Panasonic SA-XR Receiver
I am looking to simplify my (stereo) home theater set up to eliminate extraneous electronics. I see a clean digital audio path in my future and the "all-digital" Panasonics seem to fit the bill nicely....
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Anyone try the Faital Pro 4FE32 or 3FE22?
The 4FE32 must be a pretty newly available driver because I can't seem to find any builds or listening impressions with it. The specs look like it will make a good full range box suitable for MLTL,...
View ArticleMr Blohbaum's Multiplied Transconductance Amp
I took the datasheet from Telefunken and made some "adequate" models for the line amplifier featured in LinearAudio V. 6. I don't have the ECL113, but do own some compactrons sharing the same features:
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Bose Bass Cannon VS Tapped Horn
I've messed around with sonotube subs*, Bose Bass Cannons, and tapped horns. Never had much luck with anything but the latter. Forum member DJK clued me in to how they're supposed to be built, and also...
View ArticleLinear Power 652
I have a Linear Power 652 series amp. I powered the amp up and it has no output. I have checked the powersupply fets and they checkout fine. The audio outputs check out fine too. I believe the are...
View ArticlePort length phase issues
Is there a way to tell if the port will be in phase with the woofers? I assume this would depend on the frequency it's ported at and length. My concern is placement. I would like to place ports firing...
View ArticleWhere to audition full range speakers in Chicago?
Hi all, Very new to all this full range stuff. But seems like the way to go for dynamic, immediate sound... (Best speakers I've ever heard: Hornlautsprecher - Avantgarde Acoustic? Hornloudspeaker GMBH)...
View Articledennesen jc 80 repair
Hi, I am new to the forum, but I have been reading for years.... I have the second version, gold boards Dennesen JC 80 and one channel is weaker then the other....who would be the best to send my units...
View ArticlePot imbalance
I have a couple of 20k Tocos pots which have an equal imbalance through the whole range of adjustment so I cant use them. I was wondering if it would be worth winding a resistor to add to the input on...
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