Protection Relay Closes Too Fast on Sansui G-7000 Receiver
I picked up a G-7000 receiver last month. All original. I noticed the first time I started it up that one replay clicks instantaneously upon hitting the power switch and then it takes several seconds...
View ArticleLTSpice Triode "Unknown subcircuit"
I am trying to model a triode in a circuit, and at present I am receiving the error message "Unknown subcircuit called in: xu1 n003 n009 n011 triode". It is probably something simple that I am unaware...
View Article12p running in time
Hi all, I followed the recommended running in first 100 hours of low vol. gentle acoustic music on my 12P and i regret to say that the sound is still shrill and somewhat distorded in the mids, with...
View ArticleSPL Dynamics ICE3500 RAIL voltage problem
Hi! I have a slight problem with Dynamics ICE3500 rail voltages. The amplifier had blown powerFETs, their driver transistors (2T & 2X), amplifierFETs and their driver transistors (2T & 2X)....
View ArticleGenerating a 1 KHz sine at 10mvrms
I need this signal to inject in an amp to set the bias. I have a B&K 3022 generator, but I can't quite figure out how to get such a low signal. Is there easy way to get this done?
View Articlehorn misconceptions
Horn Loudspeaker Design - Theory And Practice by Randy Bankert of O. S. Services, Inc. and North American Distributor Of Zingali Loudspeakers If you look here you will see some confusions about horn...
View ArticleToggle or Rotary Switch for Phono Inputs
Hi all, I have two tonearms on my turntable; I used to swap cables but now I'm tired. I want to add a switch to my pre-amplifier which controls the two phono inputs: One directly from a MM cartridge,...
View ArticlePhilips CD-100/CD100 (First Generation CD Player) - Main Switch needed
For this compact disc player I need a push-button swich for on/off. The shaft of the genuine part is damaged. I read on the genuine part follow: "SDG" (brand name: Alps - same company that is good...
View ArticleYou can now 3D print a speaker
Check this out You can now 3d print a speaker. How do you think it will take until that is the defacto manufacturing method for hight end speakers? Personally I am more interested in 3d printing horns...
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cisco power supply, grounding and the Millett starving student
Hello all, I've recently completed populating the PCB for my 12AU7 SSMH, and now I'm ready to put it into an enclosure (assuming that it all works okay) I purchased a 48v switch mode supply off Trademe...
View Articlemy new DIY, cheap as can be, line array project!
SO, i found this guys blog, located here Line Array: so simple... - The Paper Horn by Inlow Sound The way he made the cabinet is incredibly cheap and super easy, next up, the woofers! Logitech S-120...
View Articlebuilding subwoofer Di-Sub 18/2
Hi I am planning to build the Di-sub 18/2 . Has anybody got the exact buildingplan for that design? It is from Hobby Hifi (German magazine), I know it is a very simple design, the W Linkwitz dipole,...
View Articlecisco power supply, grounding and the Millett starving student
Hello all, I've recently completed populating the PCB for my 12AU7 SSMH, and now I'm ready to put it into an enclosure (assuming that it all works okay) I purchased a 48v switch mode supply off Trademe...
View ArticleUltimate multi-channel DAC
Folks, I'm looking to build a multichannel (6 or 8 channel) DAC with differential balanced outputs... btw: when playing movies using a HTPC and a USB - DAC - is it easy to keep the video and audio in...
View Articledoes Hifi Collective use discounts for holidays
anyone know If Hifi Collective gonna have discounts for holidays
View ArticleDissipation of Burning Amp Chassis
I was lucky enough to receive a Burning Amp Chassis. My particular piece has three rectangular outcroppings to serve as heatsinks on each side. Some versions had more heatsink pieces than this one. My...
View ArticleSony, Yamaha, and Insomnia
One of those nights, rush to get ready for xmas. Thought I would write something about my recent adventures to help put me to sleep. So I am pretty old so my gf is appropriately old too so she is...
View ArticleAmplifier stability and feedback
Hi there, I am in the process of repairing an old Sony ES amplifier (very nice build ) and there are some problems with stability in one channel. It seems like HF-instability or oscillation. It is...
View ArticleAxial or Diametrical neo magnets for homemade speaker?
Hi guys, I would like to build a homemade speaker from scratch using a 1'' by 1'' neodymium magnet. The voice coil will be wound on a former outside the magnet. Assuming that there will be no pole...
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