At our inception, we started selling and swapping tubes from private collections of various ham and tube enthusiasts. Since then, Tubemonger has evolved into a business. This is still a hobby, as all of us at Tubemonger have regular careers in Texas and California’s Silicon Valley. Our mission is to provide you with fine tubes, and 100% satisfaction with your purchases (subject to Terms of Use on our site).

All tubes are guaranteed for authenticity and quality. All tubes are tested and matched on at least one of the following top of the line and regularly calibrated testers, including: the Hickok 580 Lab Grade Tester, Modified Hickok 752 or the Hickok 600A/6000, or the Hickok 800 Dynamic Mutual Conductance tube testers. Select NOS Tubes Pic Lib in the Menu bar for tube identification information.

We accept PAYPAL, Credit Card, personal and company checks, or Money Orders as your payment options. If using Paypal or a credit card, the transaction is securely processed directly by the Paypal transaction gateway. To ensure the privacy and security of your financial information as you shop on our web store, Tubemonger does not see, store or maintain your PayPal and/or credit card information, other than contact, billing and shipping address(es). Please refer to the PayPal website for their privacy and security policies.

This is a web only business. You can look at our customer feedback here, here and here. Our inventory changes frequently. Please visit often.