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Tube Amplifier Petrus

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Grzegorz "gsmok" Makarewicz, This email address is being protected from spambots. You need JavaScript enabled to view it.

Tube amplifier "Petrus" is produced by a small manufacture in Ukraine. It is not known to me the number of copies produced - certainly is small - it does not prevent the fact, that at least a few copies of this amplifier operates in the environment of our domestic audiophiles.  The amplifier is based on 6S33S tubes (called "devils") operating in class A, and delivering an output power of about 15W per channel.

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Tube amplifier 100 BIS

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Grzegorz "gsmok" Makarewicz, This email address is being protected from spambots. You need JavaScript enabled to view it.  (opracowanie z 13.07.2004r.)

After the PS-1 control unit, I became the proud owner of 100Bis tube amplifier. This amplifier and PS-1 control unit constitute  an electroacoustic set. More specifically, the set includes two such amplifiers and one control unit. Amplifier, which is presented below is of excellent condition. The only apparent damage (except for scratches resulting mainly from improper storage) is a small loss of the plastic shield, which acts as an amplifier decorative front panel.

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The QUAD 22 Control Unit

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Grzegorz "gsmok" Makarewicz,   This email address is being protected from spambots. You need JavaScript enabled to view it.

QUAD 22 preamp was designed to work with one (mono system) or two (stereo system) QUAD II amps. Its features, in particular, interchangeable external modules predestined it to act as an audio system control device. This has been reflected in the name of the device, which identifies them not as a typical preamp but the control unit (full, original name is "The Quad 22 Control Unit." Due to the fact that even the manual is common for QUAD 22 Control Unit and QUAD II amplifier, photographic presentation begins with a few shots of full audio system designed for stereo reproduction.

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Tube amplifier WR75-62 "Ampli75"

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Photographs of WR75-62 "Ampli75" amplifier ( PZT Warsaw 1964) made and gave to us Mr Piotr Kowalski This email address is being protected from spambots. You need JavaScript enabled to view it..
The happy owner of an amplifier is Maciej Myga.

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Tube amplifier WR75

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Written by "Dziadek" This email address is being protected from spambots. You need JavaScript enabled to view it.

It is now fully functional copy, unfortunately without the original parts. As you can see, power amplifier uses:

  • the beautiful 6P3S tubes at output stage,
  • the 6N8 as a phase inverter,
  • the EF183 as microphone preamplifier and
  • EF80 as gramophone preamplifier.

As the result of long-term "residence" in the wet room, all the paper capacitors were "dead", and so the most of the resistors.

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