Hi-Fi Preamplifier

122

01:59:50

Some of the distortion measurements are as follows:

THD1 = 0.002% @1kHz
THD2 = 0.008% @20Hz
THD3 = 0.008% @20kHz

Keep in mind that these are the non-linear distortion values. Accounting for transistor noise, the values would be somewhat higher, but still I don't expect them to be more than 0.01% if using high quality transistors. 

published 2 years ago

jason9

2 years ago

Hey, I remember you made a circuit a long time ago where you tried to simulate inductor saturation with a transformer and some diodes. I don’t think it really represented very well how saturation works, but it probably got the job done for that circuit. Anyway, I made a proper inductor saturation simulation: 6471014183337984

thebugger

2 years ago

Hey Jason9, long time no see. Good to see you still here in EC. I don't remember trying that, but good job on the circuit. Looks proper to me :)

jason9

2 years ago

Yeah, I haven’t been very active for a long time. I kind of lost creative inspiration for making circuits. Now I just make random things as I get external inspiration.

jason9

2 years ago

Here’s your original circuit: 4828928948830208

thebugger

2 years ago

Yeah, likewise. I just finished my bachelor's thesis, which was to build ans study a vacuum tube amplifier. I gotta say, I'm very satisfied with the end result, but now I want to make something with a bit more punch than 10W, so I've been designing a 100W amplfifier. Let's see how that goes

thebugger

2 years ago

Wow that's a rather old circuit. I don't even remember trying to simulate a core saturation

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