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For your review and consideration- we present you with another fine Tube from the Amplifier collection at  Magdon Music!

Please read the description below and review the photos.  The exact tubes pictured and in the description are the exact tubes that you will be purchasing.  If there is something that you need to know that is not in this description- please message us before buying and we will be very happy to assist! 

*** Please note that our tubes are tech inspected before they go out the door! Buy with confidence from Magdon Music!

***Shipping is for the Continental USA (lower 48 only!) Magdon Music reserves the right to ship FedEx, UPS, or USPS- depending on your ship address/ship rates.
***Flat rate shipping is for USA ONLY! (Lower 48 only!)

Pictured here is a used DOD 421 Series II Graphic Equalizer! This rack-unit is non-functioning. We don't have much information on this unit, and we have not diagnosed the issue. The chasse appears to be in good condition, making this an ideal unit for a repair / salvage project! DOD units are reliable, reputable, and classic analog devices - the 421 would've been found in countless sound racks back in the day! That makes this an excellent project for any crafty sound enthusiasts out there. Don't fear! DOD's 421 Series II is here for your intrigue! Order today! 

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If there is anything else that you need to know about these tubes or if you would like an in-hand description or more photos- please feel free to contact our professional guitar department at Magdon Music.

***Please note that Magdon Music has showrooms full of gear- both new and used. Everything is not listed online.  If you are looking for something specific and do not see it online- please feel free to message us and we'll be glad to help!
Magdon Music is open Monday thru Friday 11am -7pm (est) and Saturdays from 11am - 4pm.

Magdon Music Voted: "Best Music Store 2026 / 2025 / 2024 / 2023 / 2022 / 2021 / 2020 / 2019" by"Times Tribune Reader's Choice Poll"Magdon Music Voted: "Best Music Store 2019" by"The Weekender Reader's Choice Awards!""Times Tribune Reader's Choice Poll""The Valley Advantage Reader's Poll"&"The Electric City's Best of the Best Poll"