No problem Jim...Communication Breakdown again!

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3/3/2000 8:47 PM

John S

No problem Jim...Communication Breakdown again! Hey there Jim...No problem,I've stuck my foot in my mouth on several occassions! )It is always real hard to judge where a guy is coming from on these posts looking at words on a screen...Anyway....I enjoyed the added info you just gave and respect you for writing back and sought of clearing a couple of people's minds.I like my Tube Screamer more now after the change from the reissue chip to the JRC 4558 and the resistor changes.I did the work on my own which was a real challenge since I normally just tweak tube amps....I agree there are much better pedals out there,but the TS9 is a nice cheap alternative to good inexpensive guitar tone....Take care Jim.....John S.

 

3/6/2000 9:14 PM

Rebel420

I was given an old ts-9 a few years back, and did mod it for a fuller tone (it already had the 'good chips' etc.) and for YEARS I used it to goose amps that already sounded good, for a bit more boost, and evn used it with a few bad souding amps to try and help them (never used it as a true standalone fuzz-- i.e. to make a clean amp grungy, rather always goosed an overdrive channel of even the worst solid state amps)... and I thought it was the holy grail. 6 months ago, my father was inquiring about the marshall Bluesbreaker. So i built one from the schematics (note: i recently compared the clone to the original, and there was absolutely NO difference in the tone). BUT due to circumstances, the tl072 op amp decided to quit w/o a warning, nor any rhyme or reason, so I swapped it with a genic Rat Shack tl082- same pinout, slightly different specs. And the thing really came ALIVE!! a LOT more transparent tone, more 'natural' overdrive, PLUS it isnt plagued by the typical bluesbreaker "just barely enough volume to meet unity gain'.. THis is the first distortion box I have ever considereed using as a standalone overdrive on a clean amp. and usingit to goose a marshall or other moderate gain amp... gives you that 'Dumblesque' type of sustain, and warmth. I'm nto an effects user (I usually A/B between a couple amps, with a Wah as my only 'effect', and occasionally a TS-9 for a bit more boost on the volume, but even these days'i've done away with that-- clean i jus tpick harder, and on my marshall, i'll jumper channels for that extra oomph.   Point is? try a tl082 in the bluebraker pedal circuit, I think it may give what you are looking for over the ts-* circuits, and pick up where the Marshall Bluesbreaker is lacking.     NOTE: after trying this out one nite late night, My neighbor was asking if someone was playing a Sax or Clarinet in my building.. told him it was a guitar, and he was shocked by the smooth sustain I was getting.

 

3/6/2000 9:41 PM
Gus	TL07x Try a LF353 or even another TL072. Different ICs have different openloop gains and bandwith. Different companys ICs same part # are different, the way we use them as tone elements is not what they are designed for. FWIW the TL07x should be lower noise than the TL08x.

 

3/7/2000 12:36 AM
rebel420	the noise WAS less with the tl072 vs the tl082, BUT the tl082 had a bit more output. The tone was noticibley more open, however... I'll ahve to buy myself one and play with some different ics'.hmmm i'll ave the spec on the 4558 *grins*

 

3/7/2000 7:09 PM
Rebel420	.. fwiw, if you take different 12ax7 tubes from different manufacturers etc, they are not all created the same either.... so why would opamps be any different?

 

3/9/2000 4:03 PM

GFR

With normal op-amp circuitry you have a huge open loop gain and then you apply lots of negative feedback to get what you really want - so any differences between diferent op-amps is "masked" by the feedback making everything "just too good" That's why people are used to the notion that every op-amp should sound the same...     With fuzz boxes that's a different story because you're driving the op-amp to its limits... you're asking it to deliver too much gain (leaving too little room for feedback to work its magic), you're asking for too large swings, you're driving weird loads like diodes and tone controls... Any diference is much more evident than in "normal" circuitry.

 

3/9/2000 4:59 PM
Rebel420	good explanation to why people think all opamps are created equal...

 

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