They are back, the rare military grade damper shields! These high grade aluminum shields completely surround your sensitive 9 pin glass preamp tubes. Inside, from the mid-section to the top, there 22 metal spring sections that gently grip the tube. These cushions give the most intimate contact of the damper to the tube, more so than any other damper on the market. The total shield surround of the tube blocks RF and EMI noise that can enter the audio signal path, and the damper can be pushed down to make contact with a metal chassis to create a ground path for this noise. The military grade lightweight aluminum quickly absorbs heat and radiates it away from the tube, and the inner surround metal cushioning fingers give vibration damping to the tube to a higher degree than any other shield damper. These are new old stock MILITARY audio grade tube damper/shields, and are not currently being made. These fit any 9 pin preamp tube such as the 12AX7, 12AT7, 12AU7, 6922, 6DJ8, 6U8, 7199, 6CG7, 12BH7, and any others this size. They will also fit larger 9 pin power and output tubes such as the EL84/6BQ5, 6CA4/EZ81, 6BM8, etc. Try these and see why they were chosen for use in military equipment, and hear the difference that this degree of tube damping makes with your sound! The picture is representative, labeling on the damper may vary. Satisfaction guaranteed.  IL residents pay 10% tax, outside of IL there is no tax unless your state collects internet tax, which will be collected by eBay.  We ship worldwide, all shipping is by first class mail only.  The sale includes all shown here.

TERMS OF SALE: Serious bidders only, please.  Payment is expected within 3 days of auction close.  We ship by first class mail to the name and address of the winning bidder provided to us by PayPal and/or eBay.  We add $1 to the shipping to cover handling fees. Please use the eBay calculator to estimate the shipping fee before you bid. We declare the full value on the customs forms for any international shipments.  International bidders should be aware that first class mail cannot be tracked and that processing delays up to several weeks can occur in customs, which is beyond our control.