ahh, didnt look at those, only looked at the 7308 gold pins. thanks
Well for those who may be interested, that new tube I was waiting for arrived a while ago and I've had no problems since then.
I'd suggest for anyone receiving one to fiddle with the switches on the base of the unit, even if you don't understand what they do they tend to change the sound quite a bit and your headphones may be better suited to one of the non-default settings. I believe they're for adjusting the gain, but frankly I couldn't relate what was stated in the manual to my headphone's specifications. Either way, they might help you out.
I've got a Phillips E88CC but I doubt it's from the 60's. How can you tell? It probaly wasn't because it was "only" €20,00
FYI it's my favorite tube (compared to pcc189, the voskhod and the standard EH tubes) but that very subjective
Are the factory codes visible? If they are use this: http://www.pauls-roehren.de/downloads/PhilipsCodeListAB.pdf
Are the Mullard ecc88/6dj8 any good? I can get one for 25 euro or two for 45 euro. Is this a normal price? I'm using them with the AD2000 and I'm looking for either an even wider soundstage or a bit more bass. Either one will be fine.