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Plasma Tweeter - with 813 vaccum tube

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Uploaded by on Dec 22, 2011

Ecco un filmato che ritrae il mio plasma tweeter valvolare con 813, dopo l'ennesima modifica. Ho semplicemente sostituito il modulatore precedente (utilizzante valvola EL34) con una EL33 (sempre pentodo, ma con impedenza anodica maggiore) ottenendo pressione sonora maggiore e distorsione molto minore.
Le valvole utilizzate sono: ECC83 come preamplificatore BF, EM84 come VU-Meter, EL508 come amplificatore BF, EL33 come modulatore ed 813 come finale RF.
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This is a video showing the last version of my 813 vacuum tube plasma tweeter. I substituted the EL34 (used as modulator) with a EL33 (with greater anode impedance), obtaining more audio power and less distortion.
Tubes used are: ECC83 as AF preamplifier, EM84 as VU-Meter, EL508 as AF amplifier, EL33 as modulator and 813 as RF amplifier in the final stage.

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Uploader Comments (ArmaHighVoltage)

  • can we have the circut?

  • @robot797 I'll upload it the next week (I hope) :)

  • great ! :)

  • @vik95170 Thank you man and merry Xmas :)

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All Comments (5)

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  • sei un genio io ho fatto 1 anno di elettronica ma ste cose col cazzo che le so fa

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