Just recently professionally Amplitrex T1000 tested, including for noise, gas and shorts.
2200 +/- 20% = new according to the Mullard specification book.
The first two have been used, the third one (CV4003) I purchased from Upscale Audio and
may have used for a few hours (no more, if that).
Prices include PayPal and shipping to the lower 48. All positive ratings of 402 on A'gon and 19 on US Audio Mart.
Mullard 12AU7/ECC82 single (1900/2000) - $45
Mullard 12AU7/ECC82 long plate (1600/1600) - $45 SOLD.
Mullard CV4003/ECC82 box plate. Platinum+ grade (2200/2100) - $70
