For sale is a used 1983 Marshall JCM 800 2203 100 Watt Tube Head. This amp is in good condition with typical wear to the tolex. With exception of the tubes and filter caps, everything on this amp is original. The Groove Tubes ® GT-E34LS tubes have plenty of life left in them. This head comes with a power supply. Below is a description of the tubes from the Groove Tubes website.

The original power platform behind most high-powered British guitar stacks from the '60s onward. Output is generally between 20 and 25 watts, with pronounced mid-range punch, tight low end and crisp top end that breaks up relatively smoothly and gets a little crunchy when pushed hard. It provides a great voice that stands out in a band mix as the mids tend to power their way through an overall mix. Big brother to the EL84