WTB:various caps and resistance
Have an XO to make so have requirement for following equipment... C1 = 7.5 μF, Polypropylene, 0.00601 ohms C2 = 18 μF, Polypropylene, 0.00386 ohms C3 = 82 μF, Polypropylene, 0.00162 ohms C4 = 6.8 μF,...
View ArticleCan you help me find a speaker design that uses the SEAS drivers in tread
Hi! I quickly ditched my idea for a 2,5way speaker as they are more trouble to build. So, now i want to build a 3-way. I would really like to use just seas drivers because their drivers are the...
View ArticleCviller's F5c
Could someone please give me a basic ideal psu description if building the F5c ? What I need to know is how much capacitance is needed, also the transformers Va. and voltage ratings. I have enough...
View ArticleSupplementary NEO3 crossover
Hi, I'm looking to experiment with supplementing the HF range on my electrostatic KLH Nine speakers. I have a pair of BG Neo3w tweeters I'm planning to use as they're lying around. The issue/question...
View ArticleEnabled 126en or Sigma 108 in frugalhorn?
Hello all, being new to speaker building I have been lurking for a while and mostly reading reading reading. The breadth and depth of knowledge here never ceases to amaze me. My first construction was...
View ArticleJFet availability issues/discussion
My purpose is not to dissuade DIYers from building the F5 or any other amp or preamp that uses the Toshiba JFets. BUT, there is a very real problem sourcing these devices at this point in time. Bogus...
View ArticleAny value in using reclaimed inductors?
I recently acquired some old stage lighting controllers that I have begun to harvest some components from. Among the items are some heavy duty inductors. I'm curious if they have any use in a PSU, say...
View ArticleBASH Amp Repair Help (From Klipsch Synergy SUB-12)
I have a BASH amp that needs repair. Not sure if this should go in the class D section or not (BASH class D-ish? :) ) It comes out of a Klipsch SUB-12. From what I've diagnosed so far, one opamp is bad...
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Can you pls help me
I like to renew my Power supply for B&K St-140 I measure secondary wiring is 46V x 2 Currently the setup are 2 Pcs 15600uf 75V and FPI4020W to feed 2 channel amp There are 3 cable going to PCB. RED...
View ArticleSMPS stiffener cap?
I am running a HifimeDIY T2 TK2050 w/ a sure 27V SMPS. I've read a lot about adding a stiffener cap. I understand what it does but I am unsure how to implement it. The board already has a 10,000 UF cap...
View ArticleRemote control & batteries
Hello, I am writing to ask some advice on a remote control that i bought second hand and that tends to make life of battery quite short (it's one 9V battery). I cannot measure any current in a tester...
View Article6N3 & 6E2 tubes.
This with tubes is a totally new thing to me and of course a question appear, for heating these tubes like 6.3V and if i got this right is DC we talk about ! On high voltage side it says where positive...
View ArticleDamping material for acrylic WG
I'm not sure if this is the right forum for this, but I couldn't find a more appropriate one, so here goes: I've got some acrylic waveguides for my C12 tweeters, and I'd like to use some kind of...
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Musical Fidelity X-10D Cap Mod
I have just replace some of low capacitance (smaller than 3uF) caps of my X-10D. <before> <after> This is my first mod of my gears. I replace the old caps by WIMA caps. I have been...
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jbl 2205a cracks in sorround flappy drivers
hey guys got a pair of jbl 2205a hear that have been running as part of my system for years with no probs, untill i pulled them out recently after 6 months of storage in a garage, to hook em back up as...
View ArticleQuestions about running a limited batch of your drivers?
Hello Mark, I hope all is well for you over in Japan :D. I have a few questions from a buyers point of view so please bear with me and please mark be understanding to my questions? I was looking to do...
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LM1876 arduino mute
hey guys i am waiting for my arduino MEGA to arrive in a few days. i need to switch a bunch of LM1876's op amps on/off. they have mute pins that mute the signals passing through by receiving 2.5v. so i...
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LM3886 GC with LM4562 tone control
Hello all. First post on diyAudio. I'm in the process of planning out my first LM3886 amp. I've built a few headphone amps, but this is my first power amp. I'm a graphic designer, not an electrical...
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