luvdunhill

I'm pretty sure this is incorrect. The meter is a bias meter in the pic, not a VU meter.

Check out the L'Amp articles on DIYA for the 'sweet spot meter'.

Flew to SFO. Mixed feelings being here as I have so much stuff to be done between now and Wed, which is when I leave. Meh.

I vote balanced to single ended conversion and then back to balanced. Explains the gain and the pot.

I think there is 2004 HF thread that might explain this a bit where Kevin commented, but they have a discrete opamp design (think Burson) they use in their designs to impart that Royal Mountie sound.

Any chance this could happen a week or two later?

or what, you turn into a pumpkin? heh. that statement just struck me as funny for whatever reason just now.

I'm probably going to just wait for mouser. These are nice transistors, better than 2sa970/2sc2240 if you don't need the extra Pd. As far as I can tell, this is what Toshiba has slated for a replacement for the older devices.

I can say as you drive that current number up on the BH it gets better. 25mA is as high as I pushed it but it's another notch up.

Anyone know where I can get some 2sa1312 while Mouser gets their act together? Perhaps some overseas vendor and someone could pop them in the mail for me? I need about 50.

$1K (assuming they were really in perfect working condition)

Yes. I work at a 350,000 employee company. You have to respect the tape.

I'm looking for a part. I am going to be making a bunch of discrete opamps. I need some sort of edge connector system to plug them into a main board. Ideally, for space reasons, I'd like them to be perpendicular to the main PCB, as there will be around 20 of them. Anything in particular I should look to use, other than the standard SIP connectors/sockets?

FTFY

at least the Dean wasn't your dad. Talk about awkward.

They're jumping on the recable bandwagon? "Bryston will also provide modifications to some headphone models to make them compatible with a balanced output configuration, along with an adapter cable assuring backwards compatibility to all traditional (unbalanced) headphone outputs."

probably too advanced material for them, perhaps try inferior dynamics.

I really want to build the AJX. If I had less efficient speakers, that's what I'd be doing. Bonus, is I can retrofit them into my F4 chassis assuming I could get a bigger transformer (or two) to fit. I might pick up boards for them anyways.

The Aleph guy is pretty close too, right? They clip at 1 ohm at 10A, so that would be 100W @ 1R, but nominally with reasonable distortion it's 25W @ 8R and 50W @ 4R. They only have 15dB gain, hence another reason for the mono blocks. I drool over this page: http://www.firstwatt.com/prod.html The best FW amp would be a Aleph JX (DIY only, and even then there isn't an official schematic released), you'd need serious heat sinking and transformers though.

They clip at 1 ohm at 10A, so that would be 100W @ 1R, but nominally with reasonable distortion it's 25W @ 8R and 50W @ 4R. They only have 15dB gain, hence another reason for the mono blocks. I drool over this page: http://www.firstwatt.com/prod.html The best FW amp would be a Aleph JX, you'd need serious heat sinking and transformers though.

ATCs are just hot speakers period. I don't really like actives for a few reasons, but I do have to agree in principle.

Dual mono F5s. Seriously. Maybe these? http://app.audiogon....-2-mono-blocks

yeah, typo on my phone.There are two different DIN plug angles, it's hard to tell what that one is. They definitely have a female of both angles though.

Rodrigo: Check a company named Lundberg at Farnell, I think they have something. Real nice connectors, I use them on my test gear.

so, I googled that gadget.. yeah, i see why that would be the proper tool for the job. I can try and find that weird metric thread. Am I basically looking for a threaded rod that could be cut down? The stock ones look like Delrin.