Diode Triode

Flame Conductivity question?

If you insert an electrode into a gas flame, it behaves as though it were a diode, with the burner chassis as cathode and the inserted electrode as the anode. (This phenomenon is used in modern, pilotless heating appliances to stop the ignition sparks when the gas catches light.) You can pass a current down theflame, but not up it.

I'm guessing that the rectification effect occurs because electrons are smaller and lighter than most positive ions, and so are easier to divert off course.

If you were to insert a grid into the flame, thus making the diode into a triode, would it actually behave as an amplifier? Has anyone ever tried this?

Electrons would move easily through the flame whereas the positive ions would be carried up the flame with the airflow. A flame is just a plasma at standard atmospheric conditions, as opposed to a low pressure plasma like in a neon tube. Since the electrons can move so easily, why would they move in only one direction?

Back around the 1970's someone made an omnidirectional speaker out of an acetylene torch flame and 2 platinum electrodes driven by a stereo. The flame diameter would change with the audio signal and create sound waves like a speaker does, only equally in all directions.

As far as I can recall, nothing was said about using a DC audio signal. I wonder what that would sound like. I read this in Popular Science or Popular Electronics. Maybe a search can find the article.

I've experimented with flame conductivity myself using a transformer with several thousand volts AC output. I remember if one wire was in the flame and the other HV wire was brought close to it, the flame would bend towards the wire. There was no difference in behavior when the wires were reversed, as I recall. I would think there would be a difference if my AC was being turned to DC. One wire might then repel the flame, but maybe not if the overall charge on the flame was altered sufficiently by the wire in contact with it. Just my observations.

As for the triode question, I would guess it would work. I'd guess a regular open flame could handle higher currents than a low pressure plasma. If it was safe to have open flames in our TVs and radios maybe it could be used assuming you could feed the flame through a wire.

THD Triode Yellow Jacket for 7591 Amps Duet $118 THD Triode Yellow Jacket for 7591 Amps Duet

Gerber 22-80070 Camo Triode Head Torch $23.99 1 x AAA 22-80070 22-80070 Camo Triode Head Torch 22-80070 Camo Triode Headlamp 1 x AAA Battery Head Strap Clips to bill of hat or use headband Light pivots up and down Heads turn when you show up after dark wearing the versatile Triode headlamp. And it illuminates like the dickens, thanks to a trio of intensely bright L.E.D especially when it's set on the higher of its two brightness modes. Battery Camo Camo Triode Gerber Gerber Legendary Blades Head Torch LED LED White Flashlight Lifetime Limited www.gerbergear.com

Triode Sweatshirt dark by CafePress $39.5 Comfort? Without sacrificing style? No sweat. This soft-fleece sweatshirt from Hanes looks great, wears well, and keeps you cozy-warm. 10 oz. fleece blend 90% cotton/10% polyesterDouble-needle coverseaming along neck, armholes wai Sweatshirt dark Tee, TShirt, Shirt Comfort? Without sacrificing style? No sweat. This soft-fleece sweatshirt from Hanes looks great, wears well, and keeps you cozy-warm. 10 oz. fleece blend 90% cotton/10% polyester. Double-needle coverseaming along neck, armholes wai

DIODE $12 When these electrical items fail there is little choice but to renew - With this genuine Suzuki par..

Triode Zip Hoodie dark by CafePress $45 Zip around town in style with this zip-up hooded sweatshirt. Made of soft fleece, it keeps you and anyone next to you toasty. Yet it's rugged enough for impromptu games of touch football.10 oz. fleece blend 90% cotton/10% polyester< Zip Hoodie dark Zip around town in style with this zip-up hooded sweatshirt. Made of soft fleece, it keeps you and anyone next to you toasty. Yet it's rugged enough for impromptu games of touch football.10 oz. fleece blend 90% cotton/10% polyester.

Triode Music Baseball Jersey by CafePress $32.5 Our 100% cotton Baseball Jersey is a sporty hit with both men and women whether you're in the game or just looking the part in great run-around casual-wear. Choose red, blue or black sleeves. 6.1 oz. 100% heavyweight cottonStandard f Music Baseball Jersey Our 100% cotton Baseball Jersey is a sporty hit with both men and women whether you're in the game or just looking the part in great run-around casual-wear. Choose red, blue or black sleeves. 6.1 oz. 100% heavyweight cotton. Standard f

Triode Dark T-Shirt by CafePress $26 Don't waste time deciding on which shirt to put on each morning. This dark shirt t-shirt will never go out of style and hides stains better too. This high-quality t-shirt is pre-shrunk and 100% cotton, which makes it both comfortable and durable. Dark T-Shirt Tee, TShirt, Shirt Don't waste time deciding on which shirt to put on each morning. This dark shirt t-shirt will never go out of style and hides stains better too. This high-quality t-shirt is pre-shrunk and 100% cotton, which makes it both comfortable and durable.

Unitech Wired - Photo Diode MS146I4G $106.01 Unitech Wired - Photo Diode MS146I4G

LightEmitting Diode $68.51 Light emitting diode. Oleg Losev, List of LED failure modes, Organic light emitting diode, Miniature light emitting diode, Solid state lighting, LED lamp, LED power sources, Electrical polarity of LEDs, LED circuit, LED as light sensor Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 74 Publication Date: 2009/10/08 Language: English Dimensions: 5.98 x 9.01 x 0.17 inches

THD Triode Yellow Jacket for 7591 Amps Duet $118 The YJ7591D is an adapter that permits the use of an EL84 power tube in 7591 amps. There are no adjustments to make and no modifications are necessary. You simply plug the Yellow Jacket into the amp's output tube sockets, plug the provided EL84s into the Yellow Jacket, turn on the amp, and play. THD's Yellow Jacket converters not only rearrange the pin locations of the tubes, but also provide the necessary current limiting on the screens and cathode as well as blocking the amplifier's grid-bias voltage, configuring the EL84 in a Class-A, self-adjusting cathode-bias circuit. When the Yellow Jacket Converters are installed in larger amplifiers intended for 6L6s or EL34 output tubes, the high plate and screen voltages are reduced as well as current limited to protect the EL84 and to drop output power. When a pair of Yellow Jacket are used in a Marshall 50W or similar amplifier, the overall power drops to about 20W and takes on more of the character of an old Vox AC30. The distortion is smoother and more even and the output is both substantially reduced and more compressed due to the Class-A nature of the Yellow Jackets. In a 100W amp like a Twin Reverb or Marshall 100, either 2 or 4 Yellow Jackets can be used. If only 2 are used and the other 2 sockets are left empty, the output is dropped to about 20 watts. With 4 in place, the amp puts out about 40W and takes on a whole new warmth and richness. Will they hurt your amp? No! Yellow Jacket converters are safe for all amplifiers and transformers. As all Yellow Jacket converters internally regulates voltage and current they put no extra strain on amplifiers' power and output transformers or internal components. Using the Yellow Jacket in higher powered amplifiers actually reduces the strain on the transformers and internal components because it reduces the overall wattage of the system. Furthermore, the heater (or filament) current of the EL84 is lower than that of the 6L6, EL34 or 7591, so the Yellow Jacket will reduce the strain on the filament windings of the power transformer as well.Use an EL84 in 7591 amps Tubes included

Thd Triode Yellow Jacket For 7591 Amps Duet $118 The YJ7591D is an adapter that permits the use of an EL84 power tube in 7591 amps. There are no adjustments to make and no modifications are necessary. You simply plug the Yellow Jacket into the amp's output tube sockets, plug the provided EL84s into the Yellow Jacket, turn on the amp, and play. THD's Yellow Jacket converters not only rearrange the pin locations of the tubes, but also provide the necessary current limiting on the screens and cathode as well as blocking the amplifier's grid-bias voltage, configuring the EL84 in a Class-A, self-adjusting cathode-bias circuit. When the Yellow Jacket Converters are installed in larger amplifiers intended for 6L6s or EL34 output tubes, the high plate and screen voltages are reduced as well as current limited to protect the EL84 and to drop output power. When a pair of Yellow Jacket are used in a Marshall 50W or similar amplifier, the overall power drops to about 20W and takes on more of the character of an old Vox AC30. The distortion is smoother and more even and the output is both substantially reduced and more compressed due to the Class-A nature of the Yellow Jackets. In a 100W amp like a Twin Reverb or Marshall 100, either 2 or 4 Yellow Jackets can be used. If only 2 are used and the other 2 sockets are left empty, the output is dropped to about 20 watts. With 4 in place, the amp puts out about 40W and takes on a whole new warmth and richness. Will they hurt your amp? No! Yellow Jacket converters are safe for all amplifiers and transformers. As all Yellow Jacket converters internally regulates voltage and current they put no extra strain on amplifiers' power and output transformers or internal components. Using the Yellow Jacket in higher powered amplifiers actually reduces the strain on the transformers and internal components because it reduces the overall wattage of the system. Furthermore, the heater (or filament) current of the EL84 is lower than that of the 6L6, EL34 or 7591, so the Yellow Jacket will reduce the strain on the filament windings of the power transformer as well.Use an EL84 in 7591 amps Tubes included

Triode Schematic Music Dark T-Shirt by CafePress $26 Don't waste time deciding on which shirt to put on each morning. This dark shirt t-shirt will never go out of style and hides stains better too. This high-quality t-shirt is pre-shrunk and 100% cotton, which makes it both comfortable and durable. Music Dark T-Shirt Tee, TShirt, Shirt Don't waste time deciding on which shirt to put on each morning. This dark shirt t-shirt will never go out of style and hides stains better too. This high-quality t-shirt is pre-shrunk and 100% cotton, which makes it both comfortable and durable.

Triode Schematic Music Golf Shirt by CafePress $20 Tee off in casual style. Our pique knit golf t-shirt is a comfortable, lightweight way to play 18-holes and beat the heat. Features, stylish white pearl buttons, yet it feels like wearing your favorite t-shirt. Dress it up or down. Throw a blazer over lat Music Golf Shirt Tee, TShirt, Shirt Tee off in casual style. Our pique knit golf t-shirt is a comfortable, lightweight way to play 18-holes and beat the heat. Features, stylish white pearl buttons, yet it feels like wearing your favorite t-shirt. Dress it up or down. Throw a blazer over lat

Triode Schematic Music White T-Shirt by CafePress $22 The white t-shirt is a timeless classic for a reason; it should be a staple in every wardrobe. It is clean, simple, and durable. The best part is you can wear it with anything. This 100% cotton T-shirt is so comfortable you'll want to wear it to bed. Music White T-Shirt Tee, TShirt, Shirt The white t-shirt is a timeless classic for a reason; it should be a staple in every wardrobe. It is clean, simple, and durable. The best part is you can wear it with anything. This 100% cotton T-shirt is so comfortable you'll want to wear it to bed.

Triode Music Large Wall Clock by CafePress $40 Measuring an impressive 17 in diameter, this Large Wall Clock is easy to read from across the room. Ideal for the game room, garage, or wherever people gather, it features a rugged plastic body and face. The eye-catching clock has quality Quartz movement Music Large Wall Clock Measuring an impressive 17 in diameter, this Large Wall Clock is easy to read from across the room. Ideal for the game room, garage, or wherever people gather, it features a rugged plastic body and face. The eye-catching clock has quality Quartz movement

Triode Music Light T-Shirt by CafePress $22 This light t-shirt will be fashionable even after the zombie Apocalypse. In fact, this shirt might be the very reason you'll survive said Apocalypse. The light color shows you aren't worried about getting stains - and even if you were, those stains show t Music Light T-Shirt Tee, TShirt, Shirt This light t-shirt will be fashionable even after the zombie Apocalypse. In fact, this shirt might be the very reason you'll survive said Apocalypse. The light color shows you aren't worried about getting stains - and even if you were, those stains show t

Triode Music White T-Shirt by CafePress $22 The white t-shirt is a timeless classic for a reason; it should be a staple in every wardrobe. It is clean, simple, and durable. The best part is you can wear it with anything. This 100% cotton T-shirt is so comfortable you'll want to wear it to bed. Music White T-Shirt Tee, TShirt, Shirt The white t-shirt is a timeless classic for a reason; it should be a staple in every wardrobe. It is clean, simple, and durable. The best part is you can wear it with anything. This 100% cotton T-shirt is so comfortable you'll want to wear it to bed.

Little Miss Triode Men's Sleeveless Tee by CafePress $22 Beat the summer heat or workout in comfort. Our 100% cotton sleeveless tee from Anvil is what to wear when you want to go casually cool.6.1 oz. 100% cottonStandard fit

BWD DIODE - SC145 $15.99 MPN #SC145. BWD DIODE. Most Alternators products are available for in-store pickup from Advance Auto Parts.

Account limit of 2098 requests per hour exceeded.

Microwave Valves/Tubes

what were the most common types of vacuum tubes used?

in their hay day what were the most commonly used vacuum tubes..ie diodes, triodes, pentodes..

It would most probably be diodes, as there are most circuits use some kind of rectification, while not all circuits use amplification that is what tr/pentodes are mainly used for.