"New Diode" / "Tweaked" KTR?

Fingolfen

Well-known member
Has anyone traced one of the newer KTR's with the "new" diodes and "adjustments"? I'm assuming the base circuit is the same, just some values that may change because of a different Vf on the diodes.
 
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I've used bat41 diodes and heard no discernable difference in tone. I was under the impression that diodes affect voltage and not tone. I can't imagine one Russian ge diode sounds better than another as a hard clipper in a klone.

I always think of it in terms of gain and affecting the gain structure/how much gain.

Which is all the more hilarious when people who use Klon type pedals as clean/mid boosts talk about the diodes.
 
You would either need a setup where you’re controlling the current through device under test (DUT) and keep notes, or a test instrument like a Peak Atlas DCA75 that has curve tracing capabilities. With the DCA75, you have to hook it up to a computer to generate the graphs.
something I'm 100% sure Finnegan did with every single of his "magic" 1N34s before putting them into every Klon and KTR on the market to confirm they met his exacting standards, naturally
 
Semi-conductors like transistors and diodes are still discrete. Linearity or active/passive has nothing to do with that.

You would either need a setup where you’re controlling the current through device under test (DUT) and keep notes, or a test instrument like a Peak Atlas DCA75 that has curve tracing capabilities. With the DCA75, you have to hook it up to a computer to generate the graphs.
Yeah, but on semiconductors you've got a pre-set test program that is done for you - no one is sitting there with an o-scope anymore... ;) Something about chips having something like 20 billion transistors now... :D

I've got a DCA55, but not a DCA75 - I may need to invest...
 
I’m not familiar with DCA55, but it may very well have the capability—check the documentation.

I’m not sure what you mean. A chip is an integrated device and contains, as you said, massive numbers or transistors and diodes (i.e., discrete devices). When those discrete devices are combined (or integrated) into a single package, you get an integrated circuit.

Oscilloscopes, signal generators, and logic analyzers are absolutely used daily with computer chip and microcontroller development, design, verification, and implementation. The test programs you’re referring to all use set parameters with those instruments to test and measure. It’s a different methodology, but the tools are the same.
 
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