BJR Copper Stoppers for 9 pin tubes. Tube damper/coolers.
ALL212
Posts: 1,577
From Brent Jesse's tube store. 2 Copper Stoppers in original boxes. New these are $25 from BJR. His description:
"...a massive, solid copper surround that solves even stubborn microphonic and image smear problems, shields against stray RF and electromagnetic hum fields, and cools the tube better than any other tube accessory on the market! ... will effectively damp tube vibrations that can cause ringing, microphonics, and sonic distortions. Since these are constructed of solid metal, they will effectively cool the tube by convection and radiate the heat away faster than a tube with no cooler attached. Both of these have an internal heat-resistant strip of multiple shock-absorbing "fingers" that grip the tube gently, and is firmly bonded to the metal."
Buy both $45 shipped.
Buy one $25 shipped.
"...a massive, solid copper surround that solves even stubborn microphonic and image smear problems, shields against stray RF and electromagnetic hum fields, and cools the tube better than any other tube accessory on the market! ... will effectively damp tube vibrations that can cause ringing, microphonics, and sonic distortions. Since these are constructed of solid metal, they will effectively cool the tube by convection and radiate the heat away faster than a tube with no cooler attached. Both of these have an internal heat-resistant strip of multiple shock-absorbing "fingers" that grip the tube gently, and is firmly bonded to the metal."
Buy both $45 shipped.
Buy one $25 shipped.
Aaron
Enabler Extraordinaire
Enabler Extraordinaire
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Both $40 shipped
Single $20 shippedAaron
Enabler Extraordinaire