Trioda/Triode 
Grzegorz "gsmok" Makarewicz
Very interesting and exclusive design. I must admit that until the amplifier hit in my arms I do not even realize that any copy of it is located in Poland. And suddenly such a pleasant surprise. I invite you to analyze the photographs showing construction details.
Grzegorz "gsmok" Makarewicz, This email address is being protected from spambots. You need JavaScript enabled to view it.
(updated 12.10.2017r.)
Interesting tube monoblocks combine a rational approach from the technical point of view with some audiophile's "bells and whistles". The amplifier (produced by American company Cary Audio Design) that came to my hands probably comes from the early stages of production. I do not know when the first copies appeared - probably around 1994, because at that time Stereophile magazine (01/1994) published a detailed review and measurement results.
Grzegorz "gsmok" Makarewicz, This email address is being protected from spambots. You need JavaScript enabled to view it.
Tube amplifier Priboj (original russian name - Прибой or Breaker in english) is one of the few secondary market tube audio amplifiers manufactured by our neighbors across the eastern border. Like most of devices from that region it has a hopeless design line and poor craftsmanship. The counterweight to these defects is a thoughtful schematic diagram and outstanding sonic performance. In short it is a princess dressed in a beggar's rags.
Grzegorz "gsmok" Makarewicz, This email address is being protected from spambots. You need JavaScript enabled to view it.
PCL86 electron tube belongs to a group called "TV tubes" - tubes used in TV sets produced in the last tube TV's. In general, the models produced in the late 70's and early 80's of last century were already mixed transistor-tube devices. A classic example of this TV was the "Libra" produced in the Warsaw Television Plant (WZT). With this design sentimental memories bind me, because I belonged to a group called. "assemblers" who, as the name suggests, were involved in assembling these TV's from parts obtained from "Bomis" (younger Internet users have a little search online to find out what it was).
Grzegorz "gsmok" Makarewicz, This email address is being protected from spambots. You need JavaScript enabled to view it.
The Audio Innovations 500 is a 25 watt Class A tube integrated amplifier. As the name suggests, it was manufactured by Audio Innovations, Brighton, UK. Audio Innovations was founded by Peter Qvortrup and Erik Andersson in 1984. The company produced tube amplifiers from 1984 to 1996. In 1991 Audio Innovations was bought by Audio Components and in 1996 Audio Partnership bought the brand. Series 500 amplifiers originated in the late 80-ies of the last century - at the beginning of the operationon of Audio Innovations in the market.
General view of the amplifier is shown in Fig. 1
Damian "Ghost" Smółka
Welcome. In this article I would like to present the equipment I recently had the pleasure to commit - Soldano SLO-100. This is my fourth vacuum tube project I have done so far. I think it's the best hardware I build with my soldering iron.