bruno2000

Re: SSL 9K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #20 on: January 07, 2011, 03:34:49 PM »
Can't seem to find 47k Triple R/Log Pot on the AML site and the only 2k2 R/Log Pot is 20mm, are the Pots supposed to be 16 or 20mm?  ChrisP

I believe Colin is expecting the triple 47k r/log pots in any day now.  Both the dual and triple are 20mm.
Best,
Joe Neil


bruno2000

Re: SSL 9K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #21 on: January 07, 2011, 03:39:12 PM »
OK, here's a tease.  This is a prototype.  Not quite finished, but close.



Best,
Bruno2000

kepeb

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #22 on: January 07, 2011, 05:01:34 PM »
the populated 9k version is the one gustav has already right?
pyinag cosle aentttoin

bruno2000

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #23 on: January 07, 2011, 05:07:18 PM »
the populated 9k version is the one gustav has already right?

Yes, Gustav has the 9K's in stock.  http://www.groupdiy.com/index.php?topic=10776.0
Best,
Bruno2000

helterbelter

Re: SSL 9K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #24 on: January 07, 2011, 06:01:30 PM »
OK, here's a tease.  This is a prototype.  Not quite finished, but close.



Nice.



And Aaaaarrggghh as well. Did I mention DIYGAS before ?

haima

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #25 on: January 07, 2011, 07:15:01 PM »
Bruno 2K ;D - are these boards designed to use a "tray" or do they just attach to the front panel via the pots only?

Thanks for doing all this work for us!

Whoops

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #26 on: January 08, 2011, 07:28:49 AM »
What source are you using to get the MAT-02EH?

haima

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #27 on: January 08, 2011, 10:47:48 AM »
I ordered mine directly from Analog Devices - but that was about a year ago. I think they are nearing "end of life".

Their replacement part is the MAT12 - same pinout, similar specs i think, hopefully it will drop right in?

There's also the THAT300 matched NPN quad from That Corp, but that's a different pinout of course. Not sure if it's suitable, specs wise. If it is, perhaps future boards layouts could have both pinouts available.

bruno2000

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #28 on: January 08, 2011, 12:46:53 PM »
Bruno 2K ;D - are these boards designed to use a "tray" or do they just attach to the front panel via the pots only?

Thanks for doing all this work for us!

All of the boards that I've built so far just use the front panel pots.  However, for the 9K board, and the new 4K, there is enough clearance in the front, and mounting holes on the board in the rear if you want to use a tray.
Best,
Bruno2000

bruno2000

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #29 on: January 08, 2011, 12:58:51 PM »
The first pair of prototype 4K boards are completed, with Cinemag transformers.  They look really good on the System One, and we will be doing listening tests this afternoon, and again on Monday.
Best,
Bruno2000


bruno2000

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #30 on: January 08, 2011, 02:03:18 PM »
What source are you using to get the MAT-02EH?

Electrochronic has some for sale.
Best,
Bruno2000

Kevin

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #31 on: January 09, 2011, 12:57:44 PM »
Bruno could you tell us the mouser order number for the teflon tubes ??
 that would be really nice....

bruno2000

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #32 on: January 09, 2011, 01:37:42 PM »
Bruno could you tell us the mouser order number for the teflon tubes ??
 that would be really nice....


I bought this stuff by the 100' roll, but here's a 4' piece from Mouser 602-FIT-400-20.  Another source would a piece of plenum rated CAT5 cable.
The tubing does not HAVE to be Teflon, it's just nicer that is doesn't melt when you solder the wire inside.
Best,
Joe Neil

peterc

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #33 on: January 09, 2011, 04:18:09 PM »
Hi Bruno

I recommend trying a Jensen in there.

I started with the Jensen, tried a few others ( although not a Cinemag ) and always came back to the Jensen.

It is pure audio orgasm! I totally fell in love with it.

I have been buying all the Jensens I can find since then.....

Peter
If opportunity doesn't knock, build a door.

bruno2000

Re: SSL 9K & 4K 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #34 on: January 09, 2011, 05:01:51 PM »
Hi Bruno

I recommend trying a Jensen in there.

I started with the Jensen, tried a few others ( although not a Cinemag ) and always came back to the Jensen.

It is pure audio orgasm! I totally fell in love with it.

I have been buying all the Jensens I can find since then.....

Peter

Greetings Peter,
I had the Cinemags on hand, so the first build was with them.  I, too, am a big fan of the Jensen transformers, but had none in stock.  I plan on doing other builds with different transformers, and doing a shoot out.
Best,
Bruno2000

mata_haze

Re: SSL 9K & 4K (E Series) 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #35 on: January 14, 2011, 06:03:42 PM »
Perhaps silly question,
but would you consider offering kits for (with metalwork..) for the 4K?


Best,
Mattia.

3nity

Re: SSL 9K & 4K (E Series) 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #36 on: January 14, 2011, 11:08:32 PM »
Is there a way to get rid of the variable filter bruno?
I want to be sure before commiting.
Life is a path, death the destination.

haima

Re: SSL 9K & 4K (E Series) 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #37 on: January 15, 2011, 01:19:15 AM »
I can't imagine you wouldn't be able to put a jumper across it...  You'd probably want a different front panel obviously.

bruno2000

Re: SSL 9K & 4K (E Series) 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #38 on: January 15, 2011, 02:16:11 PM »
Is there a way to get rid of the variable filter bruno?
I want to be sure before commiting.

Sure!  I will get together a list of parts to leave out, and you'll need to put in a jumper instead of the HPF in/out relay.  You'll probably have to use some kind of tray to insure mechanical stability since without the HPF pot, the board will then be attached to the front panel by only the gain pot.
Best,
Bruno2000

bruno2000

Re: SSL 9K & 4K (E Series) 500 / 51X NEW BOARDS Mic Pre Thread 2011
« Reply #39 on: January 15, 2011, 03:04:44 PM »
Perhaps silly question,
but would you consider offering kits for (with metalwork..) for the 4K?


Best,
Mattia.

I'm not really inclined to do a "kit" since all of the parts for the 4K are easily obtainable from the usual sources, and the board will accommodate a choice of several input transformers. I will, however, make a FPD file available for the front panel.
Best,
Bruno2000


 

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