GSSL Clones.

greyskull

Member
Mar 22, 2006
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So who here's built one? a friend of mine ordered some boards and I'm gonna get cracking on making em.
Anyone in the uk done it? if so, where did you get the parts from?
 
Check out canford.co.uk for the 1U rack case + lorin switches + components

Also if you don't mind ordering over the pond mouser & digikey will have all the bits needed for your build
 
im thinking about it very very soon (have been for a long time ha ha ) but ive got some other things to build first, im going to build 2, one fro the drum bus and one for the master bus.
Which BOM and guide are you going to follow and which boards did you buy?
 
hmmm im still debating where to order all the parts from... seems like not every one has all of the right ones and I'll have to either make substitutions or pay postage 3 times. and if i order from america god knows what other fees!
 
For what it's worth, I've done a lot of ordering through Mouser and Digi-Key, and they've always been great to work with. Of course, I am in the US, so YMMV.
 
For what it's worth, I've done a lot of ordering through Mouser and Digi-Key, and they've always been great to work with. Of course, I am in the US, so YMMV.

indeed. but id have to pay LOADS for postage and import tax! much as that'd be great!
 
indeed. but id have to pay LOADS for postage and import tax! much as that'd be great!

Haha, I know that didn't help much. I'm quite interested in this, though. The studio I work at is even willing to sponsor the build, which is pretty badass.
 
...but id have to pay LOADS for postage and import tax! much as that'd be great!

I've ordered from Mouser to the UK, it's or free for orders over £50 (£12 otherwise). I didn't get any extra tax slapped on, and it came in one day -- UK-based "Rapid" took two days to deliver.

Gyraf recommend ProFusion for the VCA chips.

It kind of depends if the boards are designed for the original dbx202c or the current-production THAT2181, I guess.

Farnell also sell the THAT2181 and 2180.

This is something I've been vaguely thinking of getting 'round to, but looking at the Gyraf schematic I'm thinking I'll slap it together deadbug style instead of using PCBs as I'd rather use transformer balancing or else bootstrapped balanced receiver IC on the inputs and a dedicated line-driver chip on the outs.

The 10k resistor to ground on the +in of the cold outs should by 5k on the Gyraf schem, btw. Oh, and use well-matched resistors and caps in the outputs -- if the output impedance looks different on the hot and cold lines it will degrade common-mode rejection.

Come to think of it those output caps should be referenced to earth at both ends to prevent them developing a charge across them. Shoddy.
 
okay.. so apparently we ordered the power supply filtering board too!
epic soldering will ensue.
Time to get practicing!