The following is just a partial list of web links that I believe make my life a little easier and a lot more fun. You should have quite a bit of fun yourself surfing these sites. Keep in mind that all but one or two of these sites will provide a 'links' page of their own, leading you on an all day journey for tube 'stuff'. If you have a personal favorite that is not mentioned, or if you spot any link that is non-functioning, please let me know. Lastly, remember that specific links (to find out more about Hickok tube testers, as an example) were listed in their respective 'Lessons'. These are 'general' interest links. With that out of the way, let's do some surfing!

• Antique Electronics Supply All of the electronic parts and supplies like resistors/capacitors/transformers you'll need. Plus NOS tubes (if you must have them), as well as a vast library of reprinted tube theory books. Get a catalog TODAY! Very close to one-stop shopping, and an indispensable resource, with other tube related magazines such as Vacuum Tube Valley for sale.
• The Blue Guitar is the massive website of Steve Ahola. He seems very knowledgeable/experienced and genuinely interested in sharing schematics/mod ideas/etc. with everyone who 'drops by'. Hours of surfing fun, and definitely the first place to check for any schematic you need.
• Effectrode. They're British, and they use 'valves' to make effects pedals including the Phaseomatic^TM, which boasts a power supply of +300VDC! The Lemon Squeezer^TM is another offering; a high-voltage compressor. When a simple Boss pedal just won't cut it, think about these imports.
• The Fender Amp Field Guide is for those folks who are very anal about the itty bitty details pertaining to their vintage Fender amplifier. It does have a ton of great pictures, and is worth a look even if you don't really worry about whether your 'Blackface' Deluxe Reverb was made in July 1964 or August 1964 (as if you couldn't differentiate from the tone).
• Garnet Amps is a website developed by fellow Winnipeger Pete Theissen. Goes the extra mile by providing production numbers, stylings, and photos for the BTO, Sessionman, Herzog, and others. Also has a Garnet amplifier 'Registry'! Check this one out if you are a serious Garnet fan.
• Guitar Player World is dedicated to free online guitar lessons for aspiring guitar players of all levels. Man, in my day I would take a 33 1/3 RPM vinyl record and play it on a Garrard turntable at 16RPM just to try and steal licks from my parents Les Paul records. This is just so much easier. If I had this, along with YouTube lessons and magazines giving away lesson DVD's, I could have been a half-decent guitar player. Instead I'm a hack tube amplifier repair technician with a web site. Don't be like me. Learn as much as you can, from as many sources as you can.
• Just Radios is a lot more than the name implies. They sell capacitors, specifically high-voltage units for your vintage tube-audio gear. If you need a 630VDC film capacitor or a 450VDC electrolytic, this is a good place to check out. They are in Canada, which is a bonus for people like me. Also a 'Capacitor Tips' page, which advises you on the proper selection of capacitor type, based on the application.
• Loudspeaker Components LLC supplies all of the raw speaker components to 'regular' speaker manufacturers, and will also supply the amplifier manufacturer with a very custom speaker featuring a plethora of options. If you can swing a fair sized order throughout the year, this could set you apart from everyone else who is just ordering Celestion Vintage 30's.
• The Marshall Amp Forum is strictly for all the Marshall owners. Now you can all gather around to discuss your Marshall amplifier whilst finding like minded blokes. Tips on where to find vintage parts, which tubes/speakers are recommended by others, and the like are regularly talked about.
• MaxiMatcher make a plethora of high-end 'tube-tester' type equipment. There is a preamp model for checking the balance of that 12AX7 if it is intended for critical phase inverter applications, but it also checks gain, noise, and transconductance. The power tube model measures amplification capabilities and compares Plate current and transconductance up to four tubes simultaneously. They also sell adapters to test 'non-standard' amplifier tubes as well as a burn-in station! This is all done at real world voltages. Buying any of these will lighten your wallet considerably, but for the truly fanatical tube jockey, you will know that tube you are about to put into your amplifier.
• Mojo has everything in parts, plus the best selection in Tolex, Tweed, and prebuilt amplifier/speaker cabinets to match/replace your vintage piece. You could even build an entire 1959 tweed Bassman yourself, from 'scratch', with just one phone call!
• Oplink Solutions is one of a few companies specializing in the repair and refurbishing of electronic test equipment. Thankfully, no vacuum tube dinosaurs here, but 'modern' oscilloscopes, LCR (impedance) meters, power supplies, and signal generators. The prices are surprisingly reasonable, and although not as 'cheap' as finding this stuff at your local TV repair shop, it's still a sensible option for the impatient.
• Plexi-Palace is another place to discuss all the intricacies of your vintage amplifier, but this site has all the British offerings such as Burns, Hiwatt, Orange, Selmer, Sound City, Vox, WEM, and others! The first place to check out if you own one of these rarities, as few local 'Yankee' technicians will have much experience with them.
• Radio Craft will, according to their website, ".....service and repair HF solid state and tube amateur radio transceivers, transmitters, and receivers manufactured by Yaesu, Kenwood,  Icom, Collins, and Drake..... repair all major brands and types of HF solid state and tube amplifiers - Alpha, Acom, Expert, Yaesu, OM Power, Tokyo Hy-Power, and Ameritron." They also " ..... restore, repair, and align antique tube radios.....  provide repair services ranging from simple maintenance tasks to major overhauls and alignment."  Did I mention they were also Canadian? If you don't feel like restoring that old Zenith floor model yourself, they also have a few for sale, lovingly and expertly made as good as new.  Check out their website!
• Sovtek or New Sensor More parts than you can shake a stick at. Everything but Tolex. I buy most of my parts for building/restoring here. New Sensor also carries many tube brands other than Sovtek, for those who are fussy or don't like Russian tubes.
• Stewart MacDonald  Guitar building parts, as well many books on woodworking, guitar repair, etc. They even sell tubes and Tolex! Toll free phone number, too.
• The 'new' Svetlana  pages are a 'work in progress' that for now features specifications on many of their tubes. Supposedly there will be more 'resources' pages added, which makes it worthwhile to check out, as the 'old' pages certainly were. Just a hint; don't 'enter' in the USA/Canada portal.
• Triode Electronics You can learn a helluva lot about tube electronics by checking out how the audio 'old-timers' did things. Sure, they sell tubes and parts, but they also have a few audio projects that will expand your knowledge far more than you'd think. Click HERE for their 4 tube push-pull amplifier that has no phase inverter!
• The Unofficial History of the Mesa/Boogie Mark Series. The are sadly only a small handful of very intelligent, astute, and knowledgeable tube guitar amplifier technicians around today. Gil Ayan is one of them, and his website looks at the shortcomings (that's what I said) of the Mesa/Boogie 'Mark' amplifier line. With input from Mesa/Boogie personnel, admitting what the magazine reviews didn't dare point out. If you own a Boogie, visit this site, and then decide if guitar magazine reviews are completely truthful.
• Vibroworld These guys sell all sorts of amplifier parts, books, etc.

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