Those NOS Ei(A-frame) were no longer produced. Tim didn't tell me where to source them. Look for Amperex Philips PCC88 (A-frame) you may find they looks very similar.
Q: In what ways does the tele better the stock tubes even just the two front tubes ?
A: I am now using Telefunken in V1, V2 & V4, Siemens in V3. Everything becomes more precise. Good recordings become more authentic. Poor recordings are still full of recording defects. Accuracy in VTF, VTA/SRA, alignment become more significant. Differences between carts becomes more apparent. More important, I feel like sitting in a concert hall when playing some really good stereo recordings(mostly from 60's & 70's).
VBR
Dan
Q: In what ways does the tele better the stock tubes even just the two front tubes ?
A: I am now using Telefunken in V1, V2 & V4, Siemens in V3. Everything becomes more precise. Good recordings become more authentic. Poor recordings are still full of recording defects. Accuracy in VTF, VTA/SRA, alignment become more significant. Differences between carts becomes more apparent. More important, I feel like sitting in a concert hall when playing some really good stereo recordings(mostly from 60's & 70's).
VBR
Dan