Music: Practice & Theory Stack Exchange is a question and answer site for musicians, students, and enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have often heard/read people mention a "death cap" when talking about older Fender amps.

Is this a capacitor ?

What does it do ?

Why is it called the death cap ?

share|improve this question

On older, two prong power cord Fenders, there's a 0.047 uF cap that you can switch in across the two power leads. It filters out some high frequency noise on the line. If the cap fails it can result in your amp's chasis, and your guitar, being connected directly to the mains. Possibly resulting in death.

Here's a diagram for converting a 2-prong Fender to a 3-prong setup with a fuse, getting rid of the cap in the process. 2 to 3 prong conversion

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.