No, unless the circuit is modified by a professional technician. We do not advise this because the amps are designed around specific power tubes, and modification may void the warranty.

No, because 6L6 tubes draw a higher filament current which might cause damage to the power transformer.

Yes we do. The power tubes go through 24 hour burn in, then matched for Ip and gm. We match all power tubes ourselves We match using several methods, including our own custom equipment, often resulting in far better matching than those matched by the factory or distributors. We are also one of the very few who burn-in and match tubes like SV811-3 in quantity. Please refer to Power Tube Matching.

No, we do not sell or install solid tubes. While they do prevent flats they are also guaranteed to destroy your wheel because they lack the cushioning that is an inherent design advantage of the pneumatic tube. If we were greedy, we would advocate the use of solid tubes, because we could sell a lot of new wheels.

This depends on several factors, including LED type/color, LED spacing, etc. In a nutshell, LEDs are significantly more efficient at producing light than neon tubes. If enough LEDs are placed together to match the light output of a neon tube, the power required to match it with LEDs will often be quite a bit less.

Current models have an internal adjustable bias, see Owner's Manual page for details. Hellhound amps do not have an adjustable bias. It's not necessary with the Hellhound as long as you use a matched set of 6L6 power tubes that are rated in the middle range (for example: 5, 6, 7 on a scale of 1 to 10). Just install and play.

Bias them anywhere between the hot side limit meaning "any hotter and they get damaged" and the cold side limit meaning "wow, that sounds BAD". Anywhere in that range is OK. There is no "correct" bias setting, keep it safe and then put it anywhere you like the sound. Biased colder, they might last longer. -Jeff S In other words, bias them so you like the sound and make sure that bias setting is within the specs, and you have the right bias setting for your amp. -Miles)

Different brand 12AX7 or 12AT7 tubes can be installed in the 1st, 2nd or reverb stages to alter tone and gain (see below). Use ONLY 12AX7 type tubes in the phase inverter stage.

Most of the time, otitis media clears up with proper medication and home treatment. In many cases, however, further treatment may be recommended by your physician. An operation, called a myringotomy may be recommended. This involves a small surgical incision (opening) into the eardrum to promote drainage of fluid and to relieve pain. The incision heals within a few days with practically no scarring or injury to the eardrum.

PTO kits are available for the GM 3500 'chassis-cab' from several PTO manufacturers. The 3500 chassis-cab will accommodate one PTO mounted on the passenger's side. Allison recommends that the PTO be installed by a reputable dealer. Note: The GM 2500HD and 3500 pickups do not have a PTO option available on the truck. Allison transmissions in the 2500HD and 3500 pickup trucks may not have a PTO drive gear and the truck's floor pan will not accommodate the PTO.

No, you don't have to toss them just yet. However, a blue glow indicates the presence of some gas in the tube, which is not a problem in most situations. If you have noticed an increase in the amount of blue, then you might want to get a new set of tubes sooner than later. Too much gas in the tube can lead to bias failures, blown fuses, and possibly blown output transformers.

All of these tubes are made right here in the U.S.A. The tubes are manufactured and shipped very close to Salt Lake City, Utah.

Extract the .swf files and place them in your Wildform/WildPresenter/Players folder. Restart WildPresenter. The players should appear in the WildPresenter Players window.

National Auto Tools is not responsible for instruction of electrical hookup of power unit. This is due to various regulations and codes by cities and states requiring certification and other stipulations. It is recommended that the customer employ the services of a certified electrician to complete hookup of power unit.

Fill Power is a measurement of the quality of down products. Fill power is determined by placing 1 ounce of down in a glass tube. It is compressed, the weight is removed, and then the down is allowed to loft for 72 hours. The space the down occupies is measured in cubic inches. Down comforters with a higher fill power are lighter, fluffier, and warmer than down comforters with less fill power. Once the down has been separated, cleaned and sterilized, it's sorted by fill power.

We are only as good as our worst tube. We are very selective about which tubes we use in Manley products and we have several different testing and burn-in jigs to test for certain parameters which will be most important for that tube in a given circuit. We will test and select a tube set for you that will be optimized for your Manley piece of gear and in most cases, your tube set will actually be tested in another one of what you have.

Not especially. Although I might have made a killing in the stock market had I invested the money I instead put into finding and stocking these large quantities of tubes ten years ago when the USA military were dumping their stocks of NOS JAN vacuum tubes.

Yes, it takes a while to get used to, but you will be able to hit with even more top-spin and back-spin with the moveable mass racket.