This was discussed recently and nothings changed. I totally agree with AP, save for the order. 1-Amperex double D getter 2-Mullard fat base double getter 3-Mullard reg. base double getter 4-Mullard single getter. All of this is system dependent, but all put all others mentioned to shame. When you factor in that the NOS will last at least twice as long, the cost becomes more palatable.
