1. His first major electronics was scratch-building Ham Radio transmitter using 6146 power tube . 2. Power tubes using this cooling scheme are available up to 150 kW dissipation.3. High-power tubes such as transmitting tubes have packages designed more to enhance heat transfer. 4. The transportation unit operates above the power tube on a pair of parallel steel rails. 5. In 1934 Dobro released a guitar amp with a vacuum tube rectifier and two power tubes . 6. This design helps to overcome some of the practical barriers to designing high-power, high-efficiency power tubes . 7. The EIA 7AC pinoutThe tube used EIA base 7AC in common with many other power tubes . 8. After he walked past a magnetron, a radar-set power tube , Spencer discovered that the bar had melted. 9. It had a single GZ34 rectifier, two 5881 / 6L6GC power tubes and four 12AX7 preamp tubes. 10. Very-high-power tubes of small physical size may use evaporative cooling by water in contact with the anode.
