Rothwell - Love Squeeze Compressor  [traced]

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layupe
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Post by layupe »

I posted about this one some days ago, someone deleted my post or it misteriously dissapeared :scratch: so here i am again!

Has someone any pics of the Rothwell Love Squeeze Compressor? It looks like a good comp and im (probably not just me?) very interested on to see whats going on inside it...They say :secret: it is really silent, something not so common for a compressor as you may know...



Thanks

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andrewkirsanow
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Post by andrewkirsanow »

If nobody replies to the posts on here, they move down the list until they disappear off the bottom, never to be seen again! When somebody replies, it moves your post back up the list! I wonder if that's why your post vanished last time??

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layupe
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Post by layupe »

Well it was for a short period of time (maybe 1 week) since i wrote it till it dissapeared, i guess it may take some time to get an answer so i would not understand someone here delete it because nobody replyied in that time...

Sooooo... Anyone out there will be kind enought to show us his Rothwell guts maybe? :horsey:

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Hides-His-Eyes
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Post by Hides-His-Eyes »

Unfilled requests get deleted quite frequently.

It's unlikely anyone on these forums has one, to be honest. Especially since it's a UK company.
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layupe
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Post by layupe »

Hides-His-Eyes wrote:
It's unlikely anyone on these forums has one, to be honest. Especially since it's a UK company.

So you mean people on this forum just own USA made pedals then? :hmmm: I thought people on this and other forums used to get their pedals from wherever they come from but i may be wrong...

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Hides-His-Eyes
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Post by Hides-His-Eyes »

Most people on these forums build their own pedals. I don't know that any of the other UK users on this forum buy very many pedals at all.
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WhiteKeyHole
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Post by WhiteKeyHole »

Found these.
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loves2.jpg
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loves1.jpg
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Hides-His-Eyes
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Post by Hides-His-Eyes »

I like the arrangement; on board switch and offboard pots.
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layupe
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Post by layupe »

WhiteKeyHole wrote:Found these.
Hey thank you very much! Did you found these floating around the net? I have been searching for something like this for some time but didnt had luck at all...


So now we have some pics :horsey:

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squrl
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Post by squrl »

Hides-His-Eyes wrote:I like the arrangement; on board switch and offboard pots.
it looks nice but makes more sense the other way around as the switch is generally the first thing to fail.

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layupe
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Post by layupe »

Wow! You are the man! :thumbsup Did you traced this yourself? Is it verified yet? Ill be far from home for a few days so there's not chance that i can mess with this at least till the end of next week but as soon as im back ill give it a try and post my results and hopefully some kind of layout...

Can i assume is it your unit that from pics? If its so, would you mind to tell us your thoughts about it? How you like it? How is it compared with lets say a dynacomp? Is it capable of doing hard squeeze or is it more on the "sweet" compression side? Is it really silent on high compression settings?

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WhiteKeyHole
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Post by WhiteKeyHole »

Traced from a newer SMT unit. Checked three times.

For the most part, I like it. It is capable of hard squeeze. There is noticeable high-frequency roll-off at higher compression settings, as you may have guessed from the schematic. It does not introduce much noise but does (unpleasantly) distort, even with single coils, at higher compression settings.

Makes a nice compressor for Bill Frisell-esque jazz tones.

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WhiteKeyHole
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Post by WhiteKeyHole »

D2 and D3 are actually a SOT-23 package with the designation BAR43S. Choose your Schottky diodes according to its specifications.

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Post by RnFR »

what color are the LEDs? white? that could be the source of the nasty distortion. it might be a good idea to try to replace them with something with a smoother conduction knee, as long as the Vf isn't too low. maybe a large amount of Ge diodes? you'd have to use quite a few.
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Post by WhiteKeyHole »

They are red, clear body and almost certainly the source of the unpleasant distortion.

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Post by WhiteKeyHole »

'Member the days when you could edit your posts...

Anyways, C12 is probably not 10nF. C3 may be 1nF.

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Post by WhiteKeyHole »

600 DPI
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Post by Ripdivot »

I bread boarded this pedal tonight but I thought it sounded more like a crappy overdrive than a compressor. I didn't have the "1n5817" diodes so I tried Bat41's, 1n4148"s and germanium. I also didn't have a 2n5457 fet with the "T" designation, mine just says "2n5457". I'm not sure if these changes would make the pedal not function properly. I found that it really distorts when you turn the compression up which makes sense with the LED's in the feedback loop so I remove them and it still distorted. I really wasn't hearing a whole lot of compression. Also my op-amp is a TLO72CP not a TLO72P as shown in the schematic. Has anyone else built this with any success?

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