Metril, You don't give us many details. Your Fuze phone should sound at least "all right" as is. Having an external amp for a phone source is likely less effective than getting better headphones, but I've no direct experience with the Fuze, so it's just an opinionated guess. The 11 pin...

Andrew, The NE5532 is an old staple in the audio trade. Much of our music from the 70's 80's etc was mixed on that op amp or similar ones. It isn't up to the standard head-fiers appreciate today. Having a bipolar input means that bias currents must be taken into account. Here are two...

Still, very nice to see. Thanks for that.

SMEGGER - there's nothing wrong with your pictures. Nice going. Sound nice? I'll be building one shortly. Jeff has sent me one in the mail. SLAUGHTER, wow, no REG101's. Wish I knew what to suggest. August 2008 would be fine for Aussies - it's their summer now. We've got winter projects to...

PMed you MASantos. Is that last one yet spoken for? Marc Update: Manuel PMed me, not available at the moment. Lucky I wasn't in any hurry. Smiles.

Quote: Originally Posted by duchamp I wont get into to what I WAS doing though. Now measuring the drop on this 0.22 resistor I'm getting something like 0.015v So with the formula I'm getting P= 0.001 Meaning I could use a 1/8 watt resistor in this position? YES! .015V X...

Reasons why your 100K pot won't work is that you need to drop a few volts, 5 to maybe 7 off the 12. I have a 120MM fan here, quiet-ish and it takes .08 Amps at 12 volts. One would need to guess or better, measure what actual current yours would require at lower voltages and lower speeds. To...

Larry, There was a Montreal meet sometime in 2006. You might get lots of names from that thread. Marc

Quote: Originally Posted by BradJudy I wired in a bi-color LED to note the power mode. BradJudy, I like your dual-color LED idea. Makes me find new uses for the triple versions! MuHuhahahah!

Sorry, can't make that weekend. You have fun, and I'll try to make the NEXT one, or start an Ottawa one... hehehe. Marc PS After several calls and messages, Sennheiser never called back.

Rob, You've already got the cable issue resolved, but there's another. The guitar signal may be too weak for the amp. You might need some kind of guitar amp between your guitar and the amp for it to work. The TV in is meant for a line-level input up to a volt. Guitars don't put out one volt...

Quote: Originally Posted by DanT The fee for Exibithor start at $2000 depending on the room and the average rate is around $4000 Scrub that notion!! I'm still laughing at myself! Unsure of dates in middle of month, kids visiting. Looking for work is current priority...

A thought: What about asking for a meeting space at the audio-video show. It would be 100% consistent with their intent to attract an audiophile crowd. Someone from Montreal could look into it, perhaps. (I'm the Montrealer exiled to Ottawa) There's been no response still from Sennheiser...

Quote: I think that's a little off. The turns ratio of a transformer is determined by taking the square root of the primary impedance divided by the secondary impedance, or the reverse in this case since this is a step-up rather than a step-down transformer. Tyre, Wouldn't this be...

That's terrific Nightfire. I've just received a pair of AlienDac boards to start on. No parts ordered yet. Sennheiser have still not responded. I called again just now. We'll have to wait and wait and see. Perhaps I'll catch them at a better moment. I'm still interested, but out of...