Artist Preamp in: Elektor, May 1982 🇬🇧 🇫🇷 🇮🇹

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modman
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Post by modman »

Full PDF project:
French:
Elektor-047-1982-05 Artist Preampli.pdf
(1015.57 KiB) Downloaded 207 times
English and Italian:
viewtopic.php?p=287520#p287520
Elektor-047-1982-05 Artist Preampli 01.jpg
Elektor-047-1982-05 Artist Preampli 02.jpg
Elektor-047-1982-05 Artist Preampli 03.jpg
Elektor-047-1982-05 Artist Preampli 05.jpg
Elektor-047-1982-05 Artist Preampli 06.jpg
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Jarno
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Post by Jarno »

Legibility of the schematic is absent, unfortunately, you can make out the rough structure, but component values can hardly be made out.
Also, can't find the two reverb sections....
"It crackles....., but that's ok"

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The G
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Post by The G »

The issue here is probably the original source compression level. I found the UK version (same schematic) which seems to look slightly better. To add to the confusion, I found an Italian version, too, and it's not the same :lol:
Also, the reverb section is using a Hammond spring reverb tank, see page 36 (5/7 in our PDF).

LATER: Sorry, no OCR. I'm not that well versed as Modman in OCR.
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Jarno
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Post by Jarno »

Thanks! That's better indeed, lm386 as a reverb driver.....:)
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Post by VivMeLol »

Wouldn't the mid control have very low Q at mild boosts and cuts ?

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Post by iznogoud »

I built this preamp in 1987, fully tracing the circuit with a pencil as we couldn't do a PCB this size with our UV machine at the electronics club...
Frankly, you can absolutely do without this preamp, actually, the "clean" channel with the reverb is on par with cheap 80's transistor amps, the so-called "lead channel" with its 5 band EQ and its FET distortion which, as the author says, "according to people who know the tubes sound that tested his preamp, is on par with the sound of tubes amps" he himself calls a "sweet myth", well, let me tell you that this guy probably never touched a guitar in his life : his lead channel is totally irrelevant and those knowing about the tube sound at Elektor in 1982 probably were only implied in HiFi...
Frankly : do not waste your time and money building this, period!
If you want a good transistor preamp/amp, go for the Rockman Sustainor, the SansAmp, the Jazz-Chorus or the MiniBrute.

There's another Elektor guitar preamp that is more simple, it's not formidable too, but they made a very interesting kind of resonant parametric filter as a complement for the tone stack, this part of the preamp can serve as a very interesting inductanceless wahwah... I'd be pleased to find back this article as I've lost my photocopy and long dismantled it to reuse the parts at smth else after I built my first tube amp around 1991...

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