Ampeg J-20 Diamond Blue Jet - Premium Package
We’ve been supplying tubes for over 20 years. Use our extensive knowledge, experience and customer feedback to select re-tube packages that will work great in your tube amp.
Value PackageVintage Package
Additional Information and DownloadsPremium Package - Click for more information.
Bias Type: Non-adjustable "Fixed" Bias
Ampeg J-20 Diamond Blue Jet Schematic
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Warranty Information and Return Policy
Warranty may vary for tubes in this package. See included tubes webpages for specific warranty details.