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russian

  1. M

    Testing Russian / Soviet tubes

    Hi all Recently I bought a bunch of different Russian and Soviet 6922 tubes. Some are Electro-Harmonix, some are Sovteks (under the RAM label), some are 6N23p Reflector. Since these tubes are scarce now because of the war, I wonder if what I got were some not so perfect ones. I have two tube...
    • marknoir
    • Thread
    • 6n23p electro-harmonix ram russian soviet sovtek
    • Replies: 23
    • Forum: Tube Audio
  2. L

    Rigonda vef electro acoustic unit

    Hi I've just got a pair of old Russian? Speakers On the back they have rigonda vef electro acoustic unit They have regular speaker wire coming out of the back On top in din inputs for radio . Turntable. On switch Several adjustment knobs and an input for 9v Are these supposed to be powered...
    • ld.4040
    • Thread
    • electroacoustic rigonda russian
    • Replies: 1
    • Forum: Speakers
  3. Rob DeFries

    There's the other GUANZO thread.

    Yesterday I received my copy of the Guanzo version 2.2 I've read a lot anout it already, but I haven't seen many solutions to many answers. I did find a schematic, but than again a schematic without power- and heater supply. Atleast now I know where to look if things go wrong. Here is the...
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