Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #20 on: September 04, 2010, 11:54:09 AM »
Can you tell us the values of trimpots

- Trimmer to Set unity gain
50K 25 turn

- Trimmer to Set ratio
200K 25 turn

- Trimmer meter calibrated to
5K 25 turn

and all the changes you made (where to find information)
thanks

I'll post some info when I get some time...

PS All trimmer are Burns


Igor

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #21 on: September 04, 2010, 10:13:19 PM »
Woa! That's fun! Despite the wiring looks bit weird, I really liked your build!
Gigatones of work. Cool!
http://www.ij-audio.com
(new site hopefully will be up in July)

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #22 on: September 06, 2010, 05:04:34 AM »
Looks good! -that's a handy little build right there.

-What's in the cup? -TY-Phoo? -PG Tips? -Lyons? -Yorkshire? -Darjeeling?

;)

Keith

 ;D It's redbush...

Nothing like a good cuppa to keep you going on long builds...

ilfungo

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #23 on: September 13, 2010, 10:28:53 AM »
Sorry for the stupid question
SSC board bom says to use 24V relays
Where do I get the 24V power supply (for relay)?
Thanks

letterbeacon

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #24 on: September 13, 2010, 12:01:17 PM »
Hi Matthew,

Where do you get your 1U chassis from?  Is it a UK supplier?

Thanks,

Matt

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #25 on: September 13, 2010, 06:05:16 PM »
Sorry for the stupid question
SSC board bom says to use 24V relays
Where do I get the 24V power supply (for relay)?
Thanks

I think you just use the +12 / -12 V rails from the GSSL main board.

I built a separate +24V Power Supply.

I will post schematic when I have time.

J

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #26 on: September 13, 2010, 06:14:57 PM »
Hi Matthew,

Where do you get your 1U chassis from?  Is it a UK supplier?

Thanks,

Matt

Yeah, the way I see it, I can get a blank case from Canford, Farnel or Maplin for about £50. Then I still need to design the front panel and get it engraved/screen-printed or just get a case for £60-70 from here:

http://www.diy-racked.com/diy-talk/viewtopic.php?f=7&t=18

Purusha's cases may be un-original (I suspect quite a few people buy them) but they are handy and help get the project finished quickly and looking reasonable. Build quality is medium, but that's only because I like proper heavy duty stuff. Purusha's cases does the job for me regarding cost/benefits.

I have 2 blue 1176, 1 LA2A and a GSSL and I am very pleased with these cases.

Delivery in from EU, so no nasty import duties....

Each time I've ordered, I've gotten the goods within 1 week. Purusha is also very good at replying to emails.

Hope that helps
JD

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #27 on: September 13, 2010, 06:16:12 PM »
Woa! That's fun! Despite the wiring looks bit weird, I really liked your build!
Gigatones of work. Cool!

Cheers Igor, so how could I improve my wiring?

Any ideas? Anybody?

ilfungo

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #28 on: September 14, 2010, 09:04:22 AM »
hello and thank Matthew
another stupid question ...
I just finished SSL main board and I made some measurements ..
Do I measure the voltage before plugging in all IC and VCA?
thanks

ilfungo

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #29 on: September 14, 2010, 10:20:41 AM »
all voltages are fine except -12 V =-24V
any ideas?



stereokillah

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #30 on: September 14, 2010, 10:53:32 AM »
Woa! That's fun! Despite the wiring looks bit weird, I really liked your build!
Gigatones of work. Cool!

Cheers Igor, so how could I improve my wiring?

Any ideas? Anybody?


i could'nt do it better, i that mean so much connection so much wire cause there is not so much guys who make gssl with turbo and 2 sidechain filter cause it's a wire jungle.
if your neighbour is hunger .. don't give him fish, teach him how fishing ...

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #31 on: September 14, 2010, 11:35:54 AM »
all voltages are fine except -12 V =-24V
any ideas?



Woah, Ilfungo! You getting -24V instead of -12V? How can that be? I seriously don't know... check your regulators, are they the right ones?

JD

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #32 on: September 14, 2010, 11:38:51 AM »
Woa! That's fun! Despite the wiring looks bit weird, I really liked your build!
Gigatones of work. Cool!

Cheers Igor, so how could I improve my wiring?

Any ideas? Anybody?


i could'nt do it better, i that mean so much connection so much wire cause there is not so much guys who make gssl with turbo and 2 sidechain filter cause it's a wire jungle.

I guess that's why so many new GSSL designs popping up on this forum...

To be honest, I don't mind all the cables... No one looks inside anyway... and with the GSSL the audio signal path is ultra simple and short. All that wire rat nest of cable is just for CV so I'm not to bothered...

ilfungo

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #33 on: September 15, 2010, 09:24:49 AM »
Hi guys ???
Can someone explain how to properly orient the lorlin?
I finished the compressor (with no additional board)
the sound passes but does not compress
the meter moves very little...
thanks


Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #34 on: September 15, 2010, 06:13:54 PM »
Hi guys ???
Can someone explain how to properly orient the lorlin?
I finished the compressor (with no additional board)
the sound passes but does not compress
the meter moves very little...
thanks



I replied to your question in the GSSL help thread

Hope it all works out for you in the end... it will be worth it

JD

ilfungo

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #35 on: September 16, 2010, 08:44:35 PM »
Thanks Matthew
my GSSL is alive! ;D
I will now try to add 2 + Turbo SSC board ...
I found on an Italian forum like this a number of changes to be done to improve
Can you tell me what are the changes made in the input output?
THANKS


ilfungo

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #36 on: September 17, 2010, 10:02:51 AM »
 ??? ??? ???


Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #38 on: September 22, 2010, 06:08:34 PM »
??? ??? ???

Sorry, I'm not yet that clued up with electronics to comment

Matthew Jacobs

Re: Completed GSSL with turbo, 2 SSC and true bypass
« Reply #39 on: September 22, 2010, 06:10:50 PM »
can work?
http://it.mouser.com/ProductDetail/Electroswitch/C4D0212N-A/?qs=sGAEpiMZZMvNbjZ2WlReYlg2Z%2fN6agIOCCbF1ojN8cE%3d

Looks pretty good... but expensive....

My idea of using relays is also just as expensive.....

I'm starting to wonder really how much are the last to positions really worth???


 

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