GssL 20th Anniversary edition
- Thread starter Gustav
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Help Support GroupDIY Audio Forum:
desol
Well-known member
- Joined
- Jun 20, 2005
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- 2,165
Personally I try to stick with smaller Sifam type knobs...which I think could be 11.5mm.
ie: https://www.ebay.ca/itm/23469402816...NeGZ/Dw3Lp2Y/6uySDjS+V+A==|tkp:Bk9SR_Sg9fSmZA
ie: https://www.ebay.ca/itm/23469402816...NeGZ/Dw3Lp2Y/6uySDjS+V+A==|tkp:Bk9SR_Sg9fSmZA
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Boards are ordered/BOM is ordered from Reichelt to check (I have the THAT stuff laying around, but that BOM is short enough, that we can count it as verified).
Still need to sort a few BOM issues (I am looking at switched pots, and see they have some from Banzai to free up some space on the front, colour trim/blend etc)
Still no work done on the front panel layout.
Five boards still available from this test/prototype run - additional builders is always a great help to gain some more feedback.
Still need to sort a few BOM issues (I am looking at switched pots, and see they have some from Banzai to free up some space on the front, colour trim/blend etc)
Still no work done on the front panel layout.
Five boards still available from this test/prototype run - additional builders is always a great help to gain some more feedback.
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Rev 2 schematic and board layout errata
R10-11-14-15, change 100R to 22K
Orientation of molex gain connector reversed (easy to reverse on pot)
Misread VCA stage as inverting overall, with following errata as a consequence
Corrected reversed input phase and bypass (for rev 1 board builders, simply cross jump the 22K for 5534 or 100R for 1206
On IC 8 and 9
Circuit verified and working except for colour add-on (Dont have a module to test it with). This is pretty trivial thing compared to the rest.
Gustav
R10-11-14-15, change 100R to 22K
Orientation of molex gain connector reversed (easy to reverse on pot)
Misread VCA stage as inverting overall, with following errata as a consequence
Corrected reversed input phase and bypass (for rev 1 board builders, simply cross jump the 22K for 5534 or 100R for 1206
On IC 8 and 9
- cut connection between pin 1 and 2, put 10K resistor between those pins.
- Cut trace going to pin 3
- Connect pin 3 to pin 5 (Can use a resistor terminal leg).
- Connect the trace previously going to pin 3 to pin 2 with 10K resistor in series.
Circuit verified and working except for colour add-on (Dont have a module to test it with). This is pretty trivial thing compared to the rest.
Gustav
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SIXTYNINER
Well-known member
[/QUOTE]
About vu meter,
the option is for the usual 1ma
or also other options are possible ?
cheers
About vu meter,
the option is for the usual 1ma
or also other options are possible ?
cheers
Good to know re errata, is the board still rev1 at this point or is there a rev2 with these things fixed?
Board is rev 1.
I have 5 boardsets left.
Only boards I will offer are the current ones. Interest has been pretty low, and expenses have exceeded what has been covered on the boards.
When the casing is also done and completely verified (I recently got very busy, someone else might beat me to the casing part), I will upload the final version gerber to the group, so anyone can order their board anywhere they like
PS - my own casing test will be 2RU. I couldnt bring myself to do something with those tiny knobs (attached FPD file in zip format).
Gustav
Thanks Gustav, makes sense about publishing the gerber instead of manufacturing more. Sorry to hear the expenses haven’t been covered.Board is rev 1.
I have 5 boardsets left.
Only boards I will offer are the current ones. Interest has been pretty low, and expenses have exceeded what has been covered on the boards.
When the casing is also done and completely verified (I recently got very busy, someone else might beat me to the casing part), I will upload the final version gerber to the group, so anyone can order their board anywhere they like
PS - my own casing test will be 2RU. I couldnt bring myself to do something with those tiny knobs (attached FPD file in zip format).
Gustav
Ahh 2U gives a bit more room, definitely…!
Cheers
Silas
Ah, no worries - we will sell the unit and break even on the economy. Didnt mean for it to sound gloom, I just meant, it wont be worth it to carry the boards judging from this run.
We were always gonna upload the gerbers as a gift to the group for the anniversary. Stated that in the start
Gustav.
I’m really looking forward to it. 
slipperyflax
Well-known member
I totally missed that these were up for sale!
As a novice builder (I've built some pedals and can follow kits instructions) should I wait for the gerber and revisions to be ironed out or jump into ordering a pcb since this would be my first intermediate build and there isn't a step by step? I really need to nail down the basics of understanding schematics though also. Advice would be appreciated thanks!
The small changes are very minor, and my description is detailed, so youll know exactly what to do with the board in hand.
Gustav
Just ordered twoTheres still 5 available
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