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A ceramic coffee mug printed with a vacuum tube reference chart, aimed at electronics hobbyists, amp builders and audio fans. It is dishwasher-safe and microwave-safe, so it works as an everyday mug rather than a display piece. Against plain novelty mugs it trades a generic slogan for a niche technical graphic that tube enthusiasts recognize. It is a gift item first; anyone wanting a large-capacity or insulated mug should look elsewhere.
In stock
Lowest price we've seen: $14.29 on Nov 11 at Redbubble. Tracked across 1 store since Nov 11.
This is a ceramic mug printed with a Know Your Tubes vacuum tube tech design.
The mug is dishwasher-safe. It is also microwave-safe, so it can be placed in a microwave to heat food or liquid.
