Generally, when replacing power tubes, you should replace both tubes (or all four) using matching pairs (or quads) of tubes. Sometimes you can get away with not re-biasing with matched tubes, but it's always best to have a technician check it out, so that the tubes are running at their optimal plate voltage (not too hot or cold). Also you don't want to get nasty crossover distortion (not the good kind) which can happen with unbiased tubes in a push-pull (Class A/B) amplifier. [NOTE: unless you are an experienced technician, do NOT try and bias your own amplifier. Plate voltages can be lethal! Spend the $40 for the bench fee to have someone knowledgeable do it.]
Both amps can be good, but it all depends on personal preference. I prefer Mesa to Marshall, because I think they sound better for my style, but either will do nicely. The Marshall has el84 tubes, the Boogie has either 6l6 or el84's, and the Mesa is American made, vs British, or in some cases, Asian made for the MG series. To get a Marshall worked on you have to send it all the way to Britain, even small fixes, to not void the warranty, but I'm not sure about Mesa/Boogies. Hope this helps : )
One can purchase a bathroom radio in local supermarkets such as Walmart and Target. One can also purchase such radios online of websites such as Amazon.
only one :c
Tubes clipped - Fallopian tubes are clipped and it is reversible. Tubes cauterized (burned) - Tubes are burned (not reversible). Tubes tied - Doctors don't do this procedure that often, but it is what it is, your fallopian tubes are tied. (reversible but with difficulty and lower success rate)
12AX7's and 6L6's.
Most likely, you're not going to get a 6l6 tube that's made in the united states. Most (if not all consumer tubes) are made in Russia, with brands like Sovtek, or something that imported into the States from Russia and rebranded. Tube technology isn't rocket science and most Russian tubes should work quite well.
One can purchase vintage tubes from eBay where there are hundreds of such items available for purchase. They are also available to buy from 'Vintage Electronics'.
Generally, when replacing power tubes, you should replace both tubes (or all four) using matching pairs (or quads) of tubes. Sometimes you can get away with not re-biasing with matched tubes, but it's always best to have a technician check it out, so that the tubes are running at their optimal plate voltage (not too hot or cold). Also you don't want to get nasty crossover distortion (not the good kind) which can happen with unbiased tubes in a push-pull (Class A/B) amplifier. [NOTE: unless you are an experienced technician, do NOT try and bias your own amplifier. Plate voltages can be lethal! Spend the $40 for the bench fee to have someone knowledgeable do it.]
One can purchase labware such as test tubes on amazon, eBay, hometraining tools. There are also local places where one can purchase labware such as Argos, and the main supermarkets may offer these.
One can get heat exchanger tubes by contacting a company that provides this product such as Phoenix Equipment. One can also purchase online at Grainger.
One can purchase square tubes at Metals Depot, Discount Steel, Speedy Metals, All Metals Inc, Home Depot, Amazon, rsteeldepot, eBay, Yale Steel, and Grainger.
www.gemplers.com/tubes. They have a complete line of tubes.
One can purchase cardboard mailing tubes at many local office supply stores, large retailers such as Wal-Mart, or at a local postal or shipping store.
Here's one place where you can buy them: http://www.tubesrus.com/packaging_materials/paper-tubes/heavy-duty-mailing-tubes/default.html. They take custom orders.
You can purchase test tubes online from scientific supply companies like Fisher Scientific or VWR International. They are also available at many local stores like craft stores, educational supply stores, and some pharmacies.
There are many websites and companies that offer water tubes for sale in America. Some of these websites that offer water tubes are Walmart, Target and Amazon.