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. See similar questions...

Have a careful look. If there are patches of blue glowing on the glass, probably with fairly sharp edges, it's due to electrons missing the anode and hitting the glass instead, making it flouresce. (Most of the tube envelope may even glow. -ed) Quite pretty, and you can play for hours, moving the patch with a magnet... (Don't electrocute yourself!) This kind of glow is common with beam tetrodes and is completely harmless. (This type of glow is by far the most common. See similar questions...

Absolutely...head, tail, body...the whole thing! Just be sure to check inside the fish for any hook that may have been forgotten to be removed. Fish is not a substitute for an RMB meal, but it can be fed a couple of times a week. One reason for this is the thiaminase enzyme in fish...it destroys thimaine (Vitamin B1). Fish especially rich in thiaminase are herring, capelin, suckers, smelts and various carp species, a total of some 50 species, most of which live in fresh water. See similar questions...

It means that the podcast has not been played. As soon as you start listening to a podcast, the dot will go away. See similar questions...

The tubes are made of a tough nylon and are protected from wear by the frame. Leaking and migration of the fluid from the tubes is minimal and the fluid will last for many years. See similar questions...

Glow plugs usually require 1.2 to 1.5 Volts of DC power. Your local hobby shop or Tower Hobbies can provide you with a lock-on adapter that has a built in battery or, If you have one, plugs into pour power panel. D size alkaline 'batteries' have really improved over the last 10 years. I usually have a 4000mah NiCd D cell for a glow battery but forgot to charge it for my first flight last Spring so I grabbed a Duracell D cell from a flashlight. See similar questions...

Blue Badge" refers to the oval badge worn only by those guides who have been selected, trained, examined and registered. A Blue Badge Guide represents the best in tourist guides. The Blue Badge was established to ensure that you benefit from the highest standards of quality and professionalism in tourist guiding. Blue Badge Guides offer you a wealth of experience and expertise that is respected by discriminating travel agents throughout the world. See similar questions...

First, read the orange glow question above. Is the color you're seeing orange, coming from the top and bottom of the tube's "guts"? If so, you're OK. BUT... if the plate, or any part of it, especially in a power tube, is actually glowing red (even a faint red) shut the amp off at once and find out what the problem is. Otherwise, you will certainly destroy the tubes. You could also destroy other parts of your amp, resulting in a huge expense to repair it. See similar questions...

A small matchbox size inverter (12v) will power up to 8 meters of Glow Wire, either as one length or seperate lengths wired to the inverter in parallel. Larger inverters are available to power longer lengths of Glow Wire. We can provide inverters that will power up to 1000 meters of Glow Wire! See similar questions...

In order to save the power hence the cost of the end user, the walkie talkie will enter a " Power Save Mode " automatically when there is no transmission / receiving signal. See similar questions...

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. See similar questions...

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. See similar questions...

The Positive Control powder on the surface of the water is not completely dissolved and causes an overreaction with the test tissue. The overreaction appears as an orange or rust color. In this case, the test result is considered "positive". http://www.ncbi.nlm.nih.gov/entrez/eutils/escan. See similar questions...

Articles or links with a blue star like this by them are highly recommended. You can earn blue stars of your own by posting on the forum. Mark-Paul Gosselaar.net? v2.0 is a Perculiar Chicken Site (2000 - 2006) and is not affiliated to Mark-Paul Gosselaar. See similar questions...

The blue bar indicates the condition status of the item as rated by the owner himself. Place your mouse over the bar to see the condition on a scale of 10. The figures generally mean: See similar questions...

This is not only normal, it's a requirement of tube operation. This glow normally comes from the tube's heater, or filament, which heats the cathode so that the tube conducts properly. If you don't see this, and your amp doesn't seem to be working properly, check the amp in the dark (some tubes, esp. Sovtek 12AX7LPS tubes) have a filament glow which is very difficult to see. If you still aren't sure, let the amp warm up for a few minutes. Then, place a fingertip near each tube in turn. See similar questions...

The short and simple answer is YES! However, achieving the same effect requires a combination of several factors: The LEDs should have as wide a viewing angle as possible. This will allow the light from one LED to "melt" into the light from surrounding LEDs and make them appear as a single, continuous light source. The LED string should be placed a reasonable distance away from the object to be lit. See similar questions...

Go read this Taste of Tubes beginner's guide written by those ol' SFI folks. That will get you started. See similar questions...

ASB: Alien Space Bats: Often used to set up alternate history scenarios for discussion. For example "Say the ASBs trip George Washington's horse in 1776 and Washington dies. What happens to the American Revolution?" There are few limits to the powers of the Alien Space Bat. To ISOT <some area or person>: To transport an area or group of people to the past or the future. "Let's say the ASBs ISOT Elizabethan Great Britain back to 40 A.D. What happens?" See similar questions...

Glow Wire is basically a copper wire with a phosphorous powder coating protected by an outer PVC layer. The wire operates on "AC" (Alternating Current) this is supplied by an Inverter. When an oscillating voltage (50-130V [rms] AC @50-5000Hz - low current) is applied to the wire the phosphorous reacts by giving off an electroluminescent glow. See similar questions...