Pass Pearl PCBs and related parts

[luvdunhill]

I'm considering getting a few Pass Pearl phono PCBs made up. Is there any interest here?

[hYdrociTy]

I want one.

[luvdunhill]

actually, I found someone with a stash of the original PCBs sold by PassDIY. So, I'm going to go this route myself. I will inquire on how many they have.

Also, if anyone is wanting to split a pair (the boards are mono, so 2 required for stereo) I'm up for that too as I'd like a single board for a mono preamp.

[luvdunhill]

seller has plenty...

[grawk]

Don't suppose 4 could be used as a balanced phono stage? for MC?

[luvdunhill]

Originally Posted by grawk

Don't suppose 4 could be used as a balanced phono stage? for MC?

nah, just 2 needed for balanced operation

[grawk]

I thought the pearl was a single ended xono?

[luvdunhill]

service manual and BOM for Pearl:

http://www.passdiy.com/pdf/pearlphono.pdf

grawk: the Xono has a balanced output, yes, but it's not generated how you might think. Here's a schematic of the MM portion of the Xono (edit: not the exact circuit, but same topology):

http://www.rstaudio.de/AlephOno/Rev2/AlephOnoMM.pdf

The circuits are indeed different, this is a common misconception.

[grawk]

That's way over my head . If 2 of these can be made into a balanced phono stage, I need to talk to someone about what it'd take to get that done...

[thrice]

I'm in for 2.

[luvdunhill]

Originally Posted by grawk

That's way over my head . If 2 of these can be made into a balanced phono stage, I need to talk to someone about what it'd take to get that done...

yeah, it cannot really be made into a phono stage with balanced outputs...

[luvdunhill]

looking at this again, I think it can support MC carts as low as 0.4mV or so...

[Grand Enigma]

Someone build me one

[luvdunhill]

Originally Posted by Grand Enigma

Someone build me one

it's a pretty straightforward project really. no circular hole tech skills needed.

[Grand Enigma]

Originally Posted by luvdunhill

it's a pretty straightforward project really. no circular hole tech skills needed.

Right but I am lazy and don't want to gather the parts and largely don't want to do any case work.

[luvdunhill]

Price will be $40 per stereo set, with a few dollars for shipping from Germany to me (depends on the number of people interested, probably around $4) and then a few dollars shipping from me to you. The board files are available, but I'd rather go this route personally. I'll close this IC on Friday 7/11/08 and collect money over the weekend.

[n_maher]

Depending on how it breaks down it might actually be better to have the boards sent to someone in the US who could then send you your set and forward along the others saving an unnecessary trans-Atlantic trip. Just a thought.

[grawk]

I think he was offering to be the cross ship point, nate

[n_maher]

Probably, I'm easily confused these days.

[luvdunhill]

yes, that's the plan.

I may be doing a group buy for the Linear Systems JFETs, assuming there is enough demand. These will work fine with these boards if you cannot come across the Toshiba parts.