My "Bi-comprossor" is finished. pic.

[Xavier]

Built as per Toney's Ross and Torchy's Squeezer vero layouts. By far the most tricky build for me so far. The box is a Retex RI414, shaped like the regular Hammond but 20% bigger. Taiwanese switches from Banzai Effects.

Very cool effects. I still don't get the squeezer totally. It is way more subtle than the Ross. The Ross sound like my CS3 ,but fuller sounding. Squishy as hell.

A very nice build !!!!

[SpufuZ]

looks very nice! I like those knobs, takes up little space.

[hairyandy]

I've got one of these in the planning stage right now.  The trick is getting them both to fit in a 1590B.  Mike did it with a PCB, but I think it's gonna be real hard to do it with vero.  A 1590BB should be no problem though.  Xavier, can you post a shot of the inside so we can see how you laid it out?

Thanks,

[Xavier]

I've got one of these in the planning stage right now.  The trick is getting them both to fit in a 1590B.  Mike did it with a PCB, but I think it's gonna be real hard to do it with vero.  A 1590BB should be no problem though.  Xavier, can you post a shot of the inside so we can see how you laid it out?

Thanks,

Whoa....I can't imagine how one can fit both veros in a regular 1590B. As I've said, this enclosure is taller and wider than a regular Hammond. It was a tight fit however. The OS vero is inside a wide piece of heat shrink tube (that was another tight fit ), as it's below the jacks and touching the pots........ the Ross vero is the one wrapped up in a piece of paper. I know it doesn't look professional, but does the job. On the bottom plate I have put a piece of self adhesive foam ,so the circuit doesn't touch it.

I would have liked to put also the attack switch below the pots, but given the placement of the OS board, that would have been impossible...

[hairyandy]

Wow!  Way to cram it in there.  I think I'm going to have to go for the BB...

[Xavier]

Wow!  Way to cram it in there.  I think I'm going to have to go for the BB...

I don't use the BB's basically because they aren't available at my local store, and because they take more space in the pedalboard. I'll have to go that route for my next builds, though (PT80 delay and Zombie chorus)

[cab42]

Xavier,

Great work!! Nice looking box and knobs!

I'm doing exactly the same thing. I have build the Orange Squeezer and bought some of the parts for the Ross.

I think I will go for a bigger box, though.

Regards

Carsten

[Pushtone]

I still don't get the squeezer totally. It is way more subtle than the Ross. The Ross sound like my CS3 ,but fuller sounding. Squishy as hell.

After building a GGG OS-1 I had much self doubt it was working correctly. Adjusting the trim pot while banging the guitar strings made so subtle a different I couldn't tell where to set it.
Then I tried another pedal with lots and lots of output level in front of the OS-1. The high input level made hearing the effect of the trimmer much easier. I found the sweet spot on the trimmer in seconds. The OS-1 is just that transparent with a standard input level.

Great build! That ought to cover 99% of anyones comp needs.

[Xavier]

I've taken the pedal to a rehearsal today and here's my conclusions.

- I omitted the output cap as per Mark Hammer's mods, but I think I'm putting it. The Ross sounds so full it needs some extra brightness..

- I don't get the OS. At unity gain (halfway of the pot), there's  VERY SUBTLE compression and dirt added. I first used J201's but it had too much output, so I used 2N5457's instead. There's an OA91 germanium diode and the opamp is a 4558. Component values are like on Torchy's single pot vero layout. Trimmer is halfway. I can't see where the effect is really.