RELISTED after top bidder pulled out.Classic vintage amp - but with some issues.I bought this amp from an antique shop in 1982, for fun, just to see what it could do. But it turned out to be an excellent sounding amp, to the extent that it usurped the place of a Rotel 840BX (which I gave to my sister). After 3 house moves I ended up with a large open plan lounge/diner which needed larger speakers than a 12 watt valve amp could manage, so I bought 100 Watt Sugden, and put the Armstrong in the loft. This was 1996, and the amp has been in the loft since then.I figured it was time to let someone else enjoy this excellent amp, so I got it back down and set it up. It still works on both channels, on all inputs, the channel selector operates nicely, and the controls are reasonably quiet. But there are definitely issues after 27 years in a loft (and 60 years in total). Specifically:Moving the umbilical connector at the pre-amp end can cause hum - loose or worn connection, I imagine.