FOR SALE
Philips EL84 Vacuum Pentode Power Output Tube.
Noval B9A.
Halo getter.
Grey plates.
The very successful EL84 is the last development step from EL3 via EL41 to the final point of radio output pentodes. It's dissipation power was increased from 9 to 12 watts, giving an output power of 5.7 watts, which was seldom utilized. The sole later launched ECL86 may not be considered as a true successor as it is a multiple beam-power-tube with again only 9 Watts.
Pin 1 is sometimes internally also used as connection to grid 1 - but only for mechanical reasons
Tested on AVO 160 With:
Uf: 6.3 V~
Ua: 250 V
Ug1: - 7.3 V
Ug2: 250 V
Results: Ia = 54 mA (48 = 100%)
S = 13 mA/V (11.3 = 100%)
All our tubes are tested for shorts and gas leak.
Feel free to visit my store ‘yourtubes’ for more vintage tubes
Items will be carefully packed to ensure save arrival.
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We ship usually within one day after payment.