COMP-1 Compulator

[Arn C.]

COMP-1 Compulator
The sound of classic studio optical compression of the 60's and 70's at your feet! The first compressor pedal not to suck the life out of your tone.

Operation

Operation is fairly straightforward. There are two inputs on the front side of the unit: a 1/4" input jack on the right and a 1/4" output jack on the left with a battery-ground switch on the input jack.


Controls

There are two controls on the unit: Compress and Volume, plus a foot switch to bypass the effect, and an LED to indicate effect operation. On the side there is a trim pot to set the overall gain of the unit.

Compress affects the amount of Gain reduction (compression) of the input signal. Turning this clock wise will give you up to 30dB of gain reduction (depending on input gain). Please note that the Compulators max gain is 26dB (SEE Trim Pot) so in some circumstances if your instrument is very hot you could achieve less than unity gain if you turn up the compress knob too much.

Volume increases and decreases the output volume of the Compulator. Use this for level matching between the effected and unaffected signal.

Trim Pot sets the gain of the compressor's pre-amplifier. If distortion occurs turn this down until the signal is clean. The unit is set at the factory at 20dB of gain which is perfect for most instruments. If you have weaker pickups or want to push the envelope turn it up to its max gain 26dB.

http://www.demeteramps.com/

Has anyone else heard about these compressors?
Do you think they use LDR/LED combos or more like Jack Ormans Q&D Compressor?
Just curious, because a friend of mine has a friend who uses one and my friend said that it was excellent!

Thanks!
Arn C.

[mudmen]

Maybe this pic will help you ? (It's from Pete Cornish site)

http://www.petecornish.co.uk/Pete-Townshend-Wiring-3.jpg

[markm]

Looks like an LDR to me.
Vactrol perhaps huh?

[lowstar]

definitely vactrol.
vtl5c? (too bad that wire is in the way  )

cheers,
lowstar

[markm]

VTL5C2 or 3....
Probably similar circuit to the "lune" perhaps?

[Satch12879]

I have one and indeed it is excellent; exceptionally and ridiculously quiet.

[markm]

VTL5C2 or 3....
Probably similar circuit to the "lune" perhaps?

I meant to say "Flatline" but, ended up with Lune as I am assembling my Tremulus Lune currently.
Sorry. 

[mudmen]

Maybe somebody will have a chance to reverse engineer this unit ?