The mother of all guitar amps, originals still sell for north of $10,000 64 years later. So build vs buy is once again, a no brainer....

The ST70 has always had a pretty great output section but the driver could use a little more attention. From the hard to find 7199 tube...

The 5B5 Fender Pro was made from 1951 until 1954. They featured octal pre-amp tubes until roughly the summer of 1953 when they switched...

My Cornwalls are from the early 1980s and as such their signal capacitors were over 30 years old. While they still worked ok, better...

Another small amp whose pricing has gone bonkers since the pandemic. Build vs Buy is an easy one now. Same basic drill as the 5E3, board,...

Pics and notes about getting good results You don't need much, just a warm dry day and a couple of basics: For a classic finish, we'll...

Assembly hints here for the DIY crowd. The narrow panel Fender Deluxe Amp (circa 1957-59) is one of the all time greats. Used by too many...

Not the last word, but a few hundred on the most popular & I'd argue important circuit topology of all time when it comes to rock and...

With an older car it just seems to make a lot of sense to send out a used oil sample and see what is going on inside the engine. This...

Quick timeline: Changed the oil at 119k Miles or so (Jan 8) Got my UOA back and it recommended fuel injector cleaner because it looked a...

This is an amp head I bought on ebay years back. The AC50 is perhaps most famous as an amp head the Beatles used for a very short time....

My old 1997 M3 4dr enjoying a blast through the snow. Proper snows and a limited slip differential made this fun rather than scary. Our...

I am not aware of any other single material in musical instrument manufacture with such a cult following, and such a lot of confusion....

Well, maybe not "all", but a decent start... Our host, Pythagoras (Image: World History Encyclopedia) Tuning is surprisingly complicated....

A short sweet photo guide to get good results quickly, I hope. A couple quick notes (TL;DR) * Remove & replace strings one at a time if...

Our old cars would have a hard time being more different. The odd couple? I thought it would be fun to look at some of the engine design...

When you amplify a signal, any signal, the circuit you use will often have some non-linearities. These can lead to additional frequencies...

Get a bunch of guitar players together and in no time debates will ensue about some other player's "tone". What causes it, what...

(This is kind of an homage to the kinds of articles the great Peter Egan wrote in Road & Track) The year was 1984. I was newly out of...

One thing that happened when I took the car in for its inspection was we saw the front turn signals were not working. It felt a bit like...