More tubes from brothers estate.
From my research...
"This tube has a 10,000 hour rated heater life, the wide bandwidth of the Telefunken, but with just a touch of midrange warmth. Very rare in the US, the Mullard 10M Master Series is the most sought after ECC83 and is consistently rated the best ECC83/12AX7 tubes of all times."
$250 free ship. This is for one tube from the group--the one with gold pins has already been sold. PayPal with fees or a PO money order or bank check is fine.
If interested, PM…thanks all.
From my research...
"This tube has a 10,000 hour rated heater life, the wide bandwidth of the Telefunken, but with just a touch of midrange warmth. Very rare in the US, the Mullard 10M Master Series is the most sought after ECC83 and is consistently rated the best ECC83/12AX7 tubes of all times."
$250 free ship. This is for one tube from the group--the one with gold pins has already been sold. PayPal with fees or a PO money order or bank check is fine.
If interested, PM…thanks all.