(!!!!!) Tube Recommendation Fee $25 - refundable with order (1 piece of audio gear; guitar amp, preamp, power amp, DAC, mic)
(!!) (Best Single) USN-CHS-5963=12AU7 Sylvania NOS "D" getter 1959 (10.6/11.8ma)
(!!) (Good Value Single 1959) 12AU7 Sylvania NOS "D" getter 1959 (8.5/8.0ma)
(!!) 5963 Beckman by RCA gray plates used/test like new 1961 (9.8/10ma) 1-2% section balance
5963 RCA Hewlett Packard gray plates used/good 1960 (8.0/9.2ma)
Tube Identification Fee ($10 per tube)
Tube testing fee
