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- Written by: Grzegorz Makarewicz
- Category: Uncategorised
A website dedicated to various topics that interest me. Retro electronics – primarily devices using vacuum tubes, forgotten old corners of Warsaw, playing with artificial intelligence, and other topics that strike my fancy at the moment.
I'm also trying to recreate the device descriptions I once posted on the now-defunct FonAr and Trioda website. These descriptions are not only mine but also those of my friends, primarily from the Trioda Forum. To enhance the site's content, I've included illustrations in various sections that I found in old books, usually from the 1950s, on topics broadly related to radio engineering (these are books or excerpts from books from defunct publishers, often without identifying the authors).

Where possible, I add information about the author to the drawing.
Control panel 100Bis (PS1) - supplement
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- Written by: Grzegorz Makarewicz
- Category: Gallery

An additional set of photos of the PS1 console described in the article from back in the day.
Prepared by Grzegorz 'gsmok' Makarewicz
A set of photos I took in May 2026 before handing over the preamplifier to its new owner. I'm posting the photos in two sets. The first, smaller set contains several photos briefly showing the entire preamplifier (well, the control panel) from the outside and inside.

In the second, much more extensive set, I've included photos roughly in the order I took them. There are many photos detailing the assembly of the electronic components. Perhaps they'll be useful to someone who has this preamplifier, perhaps in a disassembled state, and the photos will be helpful in restoring it.
100-BIS Tube Amplifier
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- Written by: Grzegorz Makarewicz
- Category: Gallery

Grzegorz "gsmok" Makarewicz,
(prepared on 13/07/2004, minor modifications on 23/07/2025)
After purchasing the PS-1 control panel, I acquired a 100-Bis amplifier, which, along with the control panel, is part of the 100-Bis electro-acoustic set. More precisely, the set includes two such amplifiers. The amplifier, whose photos I'm showing, is in excellent condition. The only noticeable damage (aside from scratches, mostly from improper storage) is a small dent in the plastic cover that forms the amplifier's front panel. Why is this dent missing? Well, that's why the amplifier's markings are gone.

Burdjak Area-41 Amplifier
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- Written by: Grzegorz Makarewicz
- Category: Tube equipment

Grzegorz 'gsmok' Makarewicz - 2013 (last update 04/06/2025)
Attention: Gallery for Patient Visitors - over a hundred photos!!!
I present photographic documentation of the Burdjak Area-41 tube amplifier. This is a stereo amplifier made on 6S41S (6C41C) triodes operating in an asymmetric (SE) configuration. The power tubes used are relatively rarely found in designs available on the market. The situation is different with DIY amplifiers. In this group, 6S41S tubes, which are the anemic cousin of the 6S33S tube, are more often used. In the Area-41 amplifier, they provide a really pleasant listening experience - this is of course only my subjective opinion.

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