Trainwreck Express Guitar Amplifier
Because of their sound, Trainwreck amplifiers (http://www.trainwreck.com) have an almost occult like following among guitarists. And, because they are produced in such small volumes, they are almost impossible to obtain. If you're lucky, you may find one on eBay for $20,000 or more. However, a number of individuals have reversed engineered these amplifiers. Below is a set of schematics that will allow you you to build a replica of the Trainwreck Express. Note, that since this is a guitar amplifier, it uses tubes. So, this will not be a trivial project. Also note that the design uses a number of lethal voltages so caution is strongly advised during assembly and test.