Amp Problem - Marshall B25 MK2

[deanoet]

Hello

I have a hand me down Marshal B25 MK2 Practise Amp
Switches on okay, but when playing the sound fades to nothing before coming back again and keeps repeating the cycle of slowly fade out and coming back again

Questions being:
1. Is it worth fixing it? From what I can see the last one sold on ebay for ~£30 so I assume a paid for fix would be pointless, but if it is something easy?
2. Due to the low value I assume it isnt really worth putting it up for sale as needing repair


I know the likely answer is "bin it", but I hate binning stuff. Suppose I am just double checking that it isnt a super easy fix, or even if someone on here who can fix it wants it as a spare or whatever.


Thanks