THESE APPEAR TO BE COMPLETELY UNUSED, NEW IN BOX NOS TUBES that test new.

You will receive this actual pair.  Price is for the Matched PAIR.

🔍 What These Are

✔️ 6060 designation

This is the British military / industrial version of:

• 12AT7

• CV4024 (related family)

Often built to tighter spec than consumer 12AT7.

✔️ Yellow “T” Triangle

This marking typically indicates:

• Tested / graded selection

• Often tighter balance or special spec batch

• Sometimes export grading

These are not the later 1970s Brimars.
These are the real-deal early 60s.

🎧 How They Sound

Early 60s Kent Brimar 6060 are known for:

• Excellent midrange clarity

• Controlled warmth (not syrupy like Mullard)

• Very stable imaging

• Clean treble without glare

• Tight bass articulation

• Low microphonics (important in phono stages)