[quote name='davehux' timestamp='1376749907' post='2178672']
Just swapped the standard JJ ECC83's for a pair of JJ ECC81's and now I have an amp with a usable gain control, not just an on/off switch
Got them from good old eBay. Perfect condition and next day delivery
[url="http://www.ebay.co.uk/itm/230570308734"]http://www.ebay.co.uk/itm/230570308734[/url]
Literally a 5 minute job to do. Undo 10 screws. Remove the valve covers. Wiggle out the old valves. Reverse the procedure. No techie skills needed.
[/quote]
And I've just done the same, I was fairly happy with the amp the way its was, but it did break up about 11 o'clock or even less. Now with the new preamp valves I can get it round to quarter past without any break up, and its a lovely smooth gain. The amp is now very punchy, cant wait to try it with the band tomorrow night now.