Boards
« Reply #20 on: May 09, 2007, 11:34:07 AM »
Hi Martin!

I received the boards today... they look great!

Thank you :)

D.


madriaanse

Neve 1290 build completed!!
« Reply #21 on: May 11, 2007, 11:19:01 AM »
Excellent!! I ordered a bunch more PCB's and they should be here in about 2-3 weeks. I'm also working on two 8 channel, 3U preamps, which is **A LOT** of work, but loads of fun!!  Stay tuned  :wink:

Take care,

M.

Bluzzi

Neve 1290 build completed!!
« Reply #22 on: September 03, 2007, 04:26:05 PM »
I'm finishing some projects and planning for next ones. I've always wanted a 1290, this design looks great!

Can we still get these boards? I'd like 2 of them.

I presume if I want to use a 24 position switch instead of the Grayhill I can just bypass the resistor network for the Grayhill?

jim

madriaanse

Neve 1290 build completed!!
« Reply #23 on: September 04, 2007, 11:51:58 AM »
Hi Jim,

I still have some boards left for sale. email me at martin_adriaanse(at)yahoo(dot)com. I also have assembly instructions, BOM, more pics here:

http://www.groupdiy.com/index.php?topic=22828

You could certainly bypass the resistor network and Grayhill switch on these boards and just use the two BA183NV's and BA183AM - but wiring a 3 pole 24 position is a royal pain IMO! Using the Grayhill with the EZ1290 PCB's makes the whole building process a walk in the park. :green:

All the best,

M.

Bluzzi

Neve 1290 build completed!!
« Reply #24 on: September 05, 2007, 11:43:40 AM »
Just sent payment for 2 boards.  Looking forward to getting these.

jim

warpboy

Neve 1290 build completed!!
« Reply #25 on: September 09, 2007, 05:27:27 AM »
hello,
i've to  connect the Di input like JC does. With the schematic I don't understand how Jc does : how connect to the 100k resistor to each point of the jack TS. The schematic seems simple but i'm not sure of the way to do it.
I've TRS jack like Khstudio (same type but Tip Ring Sleeve instead of TS)
Any picture or info are wellcomed :wink:

warpboy

Neve 1290 build completed!!
« Reply #26 on: September 09, 2007, 01:59:55 PM »
Quote
how connect  the 100k resistor to each point of the jack TS

:oops:  :oops:
 I'd better stop working
I'll start the joke thread :?
.... :green:

madriaanse

Neve 1290 build completed!!
« Reply #27 on: September 09, 2007, 05:30:21 PM »
Hi Warpboy,

I'm not familiar with JC's DI connection. Can you post a reference/schematic?

Many Thanks!!

Martin

warpboy

Neve 1290 build completed!!
« Reply #28 on: September 10, 2007, 04:48:14 AM »
Hi Martin.
It's ok with the DI input :wink:
If you want, I can send you an email with all infos from JC  :wink:

Bluzzi

Neve 1290 build completed!!
« Reply #29 on: October 02, 2007, 02:08:19 PM »
I got the boards and they look great!

I'm having trouble locating the 71BDF30-03-1-AJN switch. I've asked Mouser for a quote (after being declined by Digikey).

Anyone have 2 to sell?

jim


okgb

Neve 1290 build completed!!
« Reply #30 on: October 02, 2007, 03:02:12 PM »
Yeah i just started searching for 2  dual deck 12 pos gain switches
anyone else have some to sell , or suggest the best place to go ?

tia regards Greg
GKB Audio / Greg Boboski

Bluzzi

Neve 1290 build completed!!
« Reply #31 on: October 02, 2007, 03:16:27 PM »
Greg, the dual deck ones are easy to get. Try Grayhill p/n starting with 71BDF30 at Digikey.

Electroswitch also make some.

jim

madriaanse

Neve 1290 build completed!!
« Reply #32 on: October 02, 2007, 03:19:53 PM »
Hi Jim,

I order 71BDF30-03-1-AJN  from Arrow Electronics (call 800.833.3557). It takes a while to get them because they special order from Grayhill.

Greg,

You mean this one: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=GH7103-ND  :green:

All the best,

Martin

Bluzzi

Neve 1290 build completed!!
« Reply #33 on: October 02, 2007, 03:59:12 PM »
Thanks Martin.

I've asked for a quote. Too bad Digikey won't do them. Up here its a pain to order from Mouser for only a few parts.


Greg, Digikey should also have the Grayhill switch.

jim

warpboy

Neve 1290 build completed!!
« Reply #34 on: October 03, 2007, 03:14:23 AM »
hi,
you can look at this item :
http://banzaieffects.de/Rotary-Switch-2-level-2x1x12-pr-20274.html
this rotary is really not expensive but has no stop end.

Phazinhead

Neve 1290 build completed!!
« Reply #35 on: October 03, 2007, 12:01:07 PM »
Hi everybody !

very nice project and nice work too  :wink:
I'm actually building 8 API312 channels and the first ones sounds very good  :razz:  .. but why not some Neve stuff now !

This "one knob" preamp is very interesting, how much cost the electronic stuff only ? .. and what are the input and output trafo used here ? ( I'm not specialist of neve preamp  :? lol )
Vive la House, vive le Funk !!

Bluzzi

Neve 1290 build completed!!
« Reply #36 on: October 03, 2007, 12:27:57 PM »
Salut de Montréal,

Electronics is not much except for the switch. The transformers will be the most expensive thing. I bought Carnhill vtb9045 and Carnhill vtb9049 from Audiomaintenance.

bonne chance

jim

Quote from: "Phazinhead"
Hi everybody !

very nice project and nice work too  :wink:
I'm actually building 8 API312 channels and the first ones sounds very good  :razz:  .. but why not some Neve stuff now !

This "one knob" preamp is very interesting, how much cost the electronic stuff only ? .. and what are the input and output trafo used here ? ( I'm not specialist of neve preamp  :? lol )

Phazinhead

Neve 1290 build completed!!
« Reply #37 on: October 03, 2007, 12:40:45 PM »
Salut Jim  :wink:

I looked on audiomaintenance website ... this stuff are not so expensive ( cost as much as the Cinemag trafo I got for the API project) .. but what are the trafo used on the original Neve?
Something that I didn't understood is the difference between this Neve preamp and the 1073.. could you just tell me what is the main difference between them ?

merci à bientot  :wink:
Vive la House, vive le Funk !!

madriaanse

Neve 1290 build completed!!
« Reply #38 on: October 03, 2007, 02:11:29 PM »
The difference is an EQ section. The original Neve 1073's are 1290's with Eq added. The newer AMS-Neve 1073DPA is really a 1290.

Original trafo's are Marinair or St. Ives 10468 and LO1166. Carnhill Transformers took over St. Ives. Carnhill's VTB9045 is basically the 10468, and their VTB9049 (or VTB1148) is the LO1166. It is said that the VTB9049 does not sound exactly like the original LO116 and that you're better off with a Sowter 9160/8571, but if you ask me personally that's slicing it pretty thin. I really enjoy the sound of my 1290's with the 9045, 9049.

You can check out my 8ch 1290/1073 project here:
http://www.groupdiy.com/index.php?topic=22828&start=0

M.

Bluzzi

Neve 1290 build completed!!
« Reply #39 on: October 03, 2007, 02:15:22 PM »
The 1073 is a mike preamp as well as line input followed by an EQ/Filter section. The switches for the EQ part are hard to find and of course more costly than usual. There is also the added cost of 3 inductors I believe as well as the mike input and output transformers (same as the bare 1290) and also a line in transformer.

From my understanding so far, the 1290 is essentially the mike preamp part of the 1073. Much cheaper and you get the "sound" of the 1073 without the EQ.

The Carnhill transformers are as close to the original as you can get. I think only NEVE has access to the originals.

There is a 1073 project starting in the Black Market (from one of your compatriots). Remember its costly though and if you already have many projects the 1073 is not as easy as most because of its EQ section (those switches look like hell to wire up)

jim


 

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