Lovepedal - Les Lius  [traced]

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Lovepedal - Les Lius  [traced]

Postby 3PDT » 20 Jul 2009, 00:56

Picked this guy up and figured I'd post the guts. Got a new camera and the macro works really well. I was happy with the results. If anyone wants the original i.e. LARGER pictures, just lemme know, I'll send them to you directly. Also, if you'd like pictures from alternate angles or part values please just hollar.

You may notice an empty connector, it's for the battery. The battery connects to the board just like the switches. Funny thing is, the switching isn't really silent. I can hear a little click when they engage. Enjoy

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Re: Lovepedal Les Lius gut shots...warning, big

Postby culturejam » 20 Jul 2009, 01:28

Well done, sir. Well done.

:applause:
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Re: Lovepedal Les Lius gut shots...warning, big

Postby kurtlives » 20 Jul 2009, 05:59

Nothing says bow tweek like SMD! :x
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Re: Lovepedal Les Lius gut shots...warning, big

Postby Greg » 20 Jul 2009, 06:13

kurtlives wrote:Nothing says bow tweek like SMD! :x


In this case, nothing says built elsewhere by other people, than the way it's built and the components.
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Re: Lovepedal Les Lius gut shots...warning, big

Postby ChrisFFTA » 20 Jul 2009, 07:47

Greg_G wrote:
kurtlives wrote:Nothing says bow tweek like SMD! :x


In this case, nothing says built elsewhere by other people, than the way it's built and the components.


Sorry I am a little slow on the uptake... what do you mean?
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Re: Lovepedal Les Lius gut shots...warning, big

Postby Jack Deville » 20 Jul 2009, 08:06

12F675...

relay switching....

this is my first post here. so i'll keep it short.

this design is very intriguing....

lovepedal? :secret:
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Re: Lovepedal Les Lius gut shots...warning, big

Postby Greg » 20 Jul 2009, 08:31

ChrisFFTA wrote:
Greg_G wrote:
kurtlives wrote:Nothing says bow tweek like SMD! :x


In this case, nothing says built elsewhere by other people, than the way it's built and the components.


Sorry I am a little slow on the uptake... what do you mean?


I mean the boards aren't done by Mr LP.. they're outsourced.
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Re: Lovepedal Les Lius gut shots...warning, big

Postby soulsonic » 20 Jul 2009, 10:03

My first guess is a single transistor boost with clipping diodes. The switch changes between different diodes. Everything else is for controlling the relay.
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Re: Lovepedal Les Lius gut shots...warning, big

Postby culturejam » 20 Jul 2009, 13:14

soulsonic wrote:Everything else is for controlling the relay.

Damn. That seems like an awful lot of components just for switching. Why the hell would you make a bypass switch so complex? If your guess is correct, then the switching is about 5x the complexity of the effect part of the circuit.

:scratch:
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Re: Lovepedal Les Lius gut shots...warning, big

Postby MoreCowbell » 20 Jul 2009, 18:24

soulsonic wrote:My first guess is a single transistor boost with clipping diodes. The switch changes between different diodes. Everything else is for controlling the relay.


SMD Electra-like circuit. That was my guess as well, would be funny if that were indeed the case.


Should be able to compare the switching to Cusacks pedals. IIRC, Cusack designed the switching for Sean.

I could certainly be wrong about everything in my post though ! :lol:
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Re: Lovepedal Les Lius gut shots...warning, big

Postby reveriesof » 20 Jul 2009, 19:55

ive always assumed it's the woodrow/electra mod w/ a diode switch, cos it's sposed to be a "5E3" aye?
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Re: Lovepedal Les Lius gut shots...warning, big

Postby RnFR » 20 Jul 2009, 23:28

reveriesof wrote:ive always assumed it's the woodrow/electra mod w/ a diode switch, cos it's sposed to be a "5E3" aye?

no, it's supposed to be a supro. :roll: :lol:
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Re: Lovepedal Les Lius gut shots...warning, big

Postby Jack Deville » 11 Aug 2009, 19:51

3PDT:

how loud is the click when the effect is engaged? is it from the relay only, or is it audible through the amp?
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Re: Lovepedal Les Lius gut shots...warning, big

Postby roseblood11 » 11 Aug 2009, 20:57

Aren´t all Lovepedals "Electra like circuits"?
Except for that famous one, which is a son-of-a-screamer like circuit... :roll:

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Re: Lovepedal Les Lius gut shots...warning, big

Postby ampjunkie » 18 Aug 2009, 19:04

The relay circuit by Cusack is pretty small. Does anybody know if he does the layouts as well? I doubt Sean does much these days except count the money flowing in. :mrgreen:

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Re: Lovepedal Les Luis gut shots...warning, big

Postby cbriere » 09 Sep 2009, 02:35

3PDT, do you got a chance to trace it? i think i'm not alone curious to see this circuit :roll:
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Re: Lovepedal Les Luis gut shots...warning, big

Postby culturejam » 09 Sep 2009, 02:47

cbriere wrote:3PDT, do you got a chance to trace it? i think i'm not alone curious to see this circuit :roll:

Negative. If he had traced it, it would be in this thread.
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Re: Lovepedal Les Luis gut shots...warning, big

Postby WhiteKeyHole » 09 Sep 2009, 02:51

It's a Woodrow with switchable diodes. Looks like only one half of the pair is switched. Can't decipher the boost function at a quick glance, but looks like it might switch from a fixed gain setting to a variable control.
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Re: Lovepedal Les Luis gut shots...warning, big

Postby WhiteKeyHole » 09 Sep 2009, 05:04

OK, this is only speculation based on what I see;

Even though the ad copy suggests that the boost activates a cascaded gain stage, I do not see the second transistor (setup) that would make this true.

What I do see is Q1 acting as, what I assume, is a VVR in series with VR4, both in parallel with the Q20's emitter resistor (330R). When the JFET's resistance is high (assume 1Meg with boost off), the affect on the 330R is very little, but when it is low (assume 1R with boost on), VR4's (variable resistor) value of 1R to 1K in parallel with the 330R increases the gain of Q20 by dropping the resistance.

Maybe?
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Re: Lovepedal Les Luis gut shots...warning, big

Postby WhiteKeyHole » 09 Sep 2009, 05:51

WhiteKeyHole wrote:Looks like only one half of the pair is switched.


Wrong, sorry. A BAT46 pair in the 5E3 position, a BAV99 in the Tweed Twin position. In the Tchula position, a single BAT46 is put in parallel with the BAV99, for asymmetrical clipping.

Now you can build one.
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