eBay.ie: 4 x Mullard EF91 CV4014 M8083 pentode valves (item 180207020318 end time 13-Feb-08 16:43:40 GMT)
Got these today
PS: on the valve doesn't say M8083 but I can see the shield is it a military grade ?
In 1 of the 4 there is a different and smaller shield on the back is that making any differences ?
How is the soundstage?