Tung-Sol 6550 vintage pair with few hours and original boxes
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| Condition | |
| Payment methods |  |
| Ships from | Charlotte, NC, 28205 |
| Ships to | United States |
| Package dimensions | unspecified |
| Shipping carriers | USPS or FedEx |
| Shipping cost | $7.00 |
 Average | Research Pricing |
Selling a nicely matched pair of vintage Tung-Sol 6550, three-hole gray plates, and branded as RCA. I purchased these new in the mid-1990s from Brent Jesse's and used less than 100 hours; they've been packaged since and test well within the manufacturer's curve for new tubes.
I contracted testing of these to tube dealer TC Tubes in MN, who use an Amplitrex AT-1000.
Excellent strong pair testing at
GM/transconductance: Tube 1 - 87% @ 5600 | 87% @ 5600
The longest-lived, best sounding 6550 ever made. Guaranteed as advertised or return. $7 shipping CONUS, actual shipping otherwise. Thank you for looking and please check my other listings!
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