2A3 Maniac strikes back!
Blog about vacuum tube audio, high efficiency loudspeakers and record players. Also not to be forgotten the 2A3(H)...
January 22, 2021
Raytheon 2A3H
January 20, 2021
Single-ended power amplifier with the tube RE604
This is a very nice, freaky project of a friend of mine. It is really worth to be presented to the public so I share it here on my blog. The (German) text that I translated to English is coming directly from the amp designer and builder: Roland Kraft. Many of you will know him as he is also a famous hi-fi editor in Germany. And by the way, one of the biggest, most highly skilled tube freaks on this planet. Here we go:
"There was no one around to talk me out of it: Tube projects from madmen for madmen. This time: the tube RE604. The KlarTon 604 is a single-ended amplifier with the tube RE604 and follows very old circuit principles. The amplifier is an experiment carrier exclusively intended for my (audio) laboratory, which should not be copied as "openly" as here, of course; the purpose of the thing was to be able to make changes quickly.
(Irony switch: on): The amplifier is, as you can easily see, completely in accordance with all electrotechnical regulations including RoHS and was manufactured according to regulations with the well-known good sounding, lead-free solder. English and German translations of the manual are also available and describe in detail the start-up, which basically consists of turning the main switch around, which was exhumed from a box of 40s electrical material at a Munich flea market. As you can easily see on the hermetically sealed case for safety reasons, the free heat dissipation of the total of ten tubes should not be a problem... (irony switch: off).
;-)
January 17, 2021
Vacuum Tube Valley Issue #01 to #20 - free download
Vacuum Tube Valley (VTV) was a magazine for tube enthusiasts produced by Charlie Kittleson. There have been published 20 issues in total in the years from 1995 to 2004. Sadly he passed away on February 10, 2009.
Without any violation of rights, all issues of this cult magazine are available as free downloads in the web nowadays. But to my experience most of the download links do not properly work. Consequently I decided to provide these as free download again - please find the download links of all issues below accordingly.
Enjoy!
January 08, 2021
Odeon Rigoletto 2020 - test online on hifistatement.net
It took a little bit longer than expected, but the test of the Odeon Rigoletto 2020 is online on hifistatement.net now. For those of you not being German native speakers, I have translated the text to English for your convenience:
I have to make one thing clear right away: This is not a classic test, but a story. It's my personal story about how, after well over a decade, a professional loudspeaker was finally allowed to move into my home again. And permanently, at that. My liaison with the Odeon Rigoletto 2020 has been going on for over half a year now, and our relationship is getting stronger. My carpentry tools have been lying around unused for months (at least I'm not using them to make my own speaker cabinets at the moment), which is not necessarily to the displeasure of my better half... But I'll go ahead, one by one!
October 10, 2020
How to pimp your Audio Note M2 Phono
September 10, 2020
Sun Audio Uchida Model SV-2A3H - Special Edition by 2A3 Maniac and Analog Tube Audio
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Sun Audio Uchida Model SV-2A3H in operation |
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Sun Audio Uchida Model SV-2A3H - Special Edition by 2A3 Maniac and Analog Tube Audio |
August 28, 2020
roehrenfieber.com: Meeting opportunity in Austria for DIY lovers from 31st Oct - 01st Nov 2020
Even in difficult times of COVID-19 there are brave hearts like Josef of roehrenfieber.com. Josef is organizing a DIY exhibition in the Landwirtschaftsschule Schlierbach (Klosterstraße 11, 4553 Schlierbach, Austria) from 31st Oct - 01st Nov 2020. The place is located approx. 100 km east of Salzburg/Austria respectively approx. 200 km west of Vienna/Austria. For further information, registration etc. please have a look to Josef´s website!
August 25, 2020
Audio Note M2 Phono and Vindicator Silver - test online on Hifistatement
As previously mentioned in my former post about the Audio Note Vindicator Silver, the test is online on hifistatement.net now. It is even a combined test together with my Audio Note M2 Phono. Unfortunately it is available in German language only, hopefully you will manage to deal with the language barrier!