Do It Yourself

Hey I've got a seduction phono preamp that's developed a problem. I get a low level: thu, thuk, thuk, thuk sound out of both channels. it's not bad with the stock tubes, but with a pair of amperex bugle boys it interferes with the music. It's a fast rhythmic pulsing that is channel independant (shows up in both). I've tried replacing the caps in the PS and the heater PS since someone on the Bottlehead forum suggested it might be "motorboating" but that didn't work. All voltages check out on the amp except pins 1 and 6 on each tube. Both should measure 70V, but one measures 73 on one tube and the other tube it's 67. Any help would be appreciated. Oh yes, …

hi all! I was wondering if anyone here would be willing to turn a wood motor pod for a project I am working on. I have a custom aluminum plate that I'd like to press fit into a simple, wood cylinder that would include a cutout for the motor itself that would run right down the middle. The outside diameter would be 120mm and the height would be just enough to accommodate my Nottingham turntable, so 4-5". If anyone is interested, I can supply detailed drawings for the top plate and we can talk price Thanks!

Saw this somewhere and hadn't recalled ever seeing it before: Switchcraft EH35MMS Switchcraft Just what Justin needs to keep those pesky 6ga ipod docks from breaking jacks

cable talk, how do we react when we facing cable?

Sorry to pollute the forum -- does anyone have any Blackgate N 4.7u/50V or 10u/50V caps? I could use either 3 or 4 of the 4.7's (I have one) or 4 of the 10's. I am happy to pay the going rate, or I have lots of DIY stuff to trade (including some new WM8741 based DAC PCBs arriving in a couple of days). Thanks

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In Netherland there's not much people interested in headphones, but thank god, I've found three persons in my building and I successfully persuaded them to build the 8 EML tubes fully dc coupled DHT amp. They're speaker guys, anyway since their children are too young and the wives want to keep the family quiet, they agreed to try headphones. We will do it toghter, one person alone couldn't afford it. We want to build it, yes, 120% sure

only talking about non-ESD amps here (aka common amps), if the amp has no negative feedback, (using n-fb could achieve pretty pretty low output z, 0.0x ohm i assume), but how about those none-fb ones? open loop is a hard subject

Hi, I recently bought an L300LE, and unfortunately the mechanical part of the headset is rather poor...particularly the plastic frame and the headband adjustment, the former desitinated to break with use because it was too fragile, the latter simply does not hold the set position due to the weight of the headset...I had to put bluetack on it to lock the two slides in place the aluminum frame of the 700 is much better.. but the cost is insane! simply crazy! has anyone made anything DIY to replace these shoddy parts?

Anyone have CFA3, GRLV, or headphone protector boards available for sale? Thanks!

I want to make a couple sets using different coax cable available on the net. I want to use solder connectors not compression. I'm looking for something flexible. I've ordered Belden GS-4 and some 26 AWG shielded silver plated from navships. Anybody used Belden 1505F?