Lead guitar amp SS combo (Cambridge CB5)

Carlsbro stingray lead 100, been sitting in the loft unused. Last time I used it it worked fine when playing, a bit crackly when adjusting volume knob (good clean might sort it). Has reverb. Not tried all in/outs/options so can't vouch for 100% functionality - just used a couple of times as a backup amp years ago which it did well, plenty loud enough. Solid state not tube. Collection only.