New Ip & Gm Factory Matched Pair (2) Electro-Harmonix 300B Gold Grid & Pins Tubes

INTERNATIONAL shipments typically take 3-6 weeks by our standard USPS First Class Mail but sometimes take up to 3 months for delivery. eBay estimates are NEVER correct for International.


This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape, 40 watt plate dissipation, and 8-course directly heated filaments it adds a few more upgrades. With an upgraded internal construction using gold-plated grids rather than the traditional nickel, the 300B Gold Grid offers a stabilized, consistent sound. These also have beautiful gold pins which eliminate oxidation and increase performance.


Testing and/or Matching

We test and/or match our tubes by Gm & Plate Current using a state of the art digital Maxi-Matcher tube tester. The Maxi-Matcher simulates a real circuit and tests tubes in real-world conditions. We also check our tubes for other issues like shorts on calibrated and vintage tube testers. We match our tubes +/- 5% with an overall tolerance of 10%.

While we do screen for noise and microphonics, even the best tube testers are quite bad at finding these faults. The only real test is with your ears. We guarantee that our tubes will be free of noise or microphonics but please be aware that there isn't a whole lot we can do to ensure your tube won't be. To combat this issue, we are quite liberal in accepting returns for these reasons.

Shipping

All orders are processed & shipped within 1 business day

Since all of our items ship for free, we cannot combine shipments and will not refund you retroactively

Domestic Orders

USPS First Class Mail: 2-7 business days, tracking
USPS Priority Mail: 1-3 Business Days, tracking

International Orders

USPS First Class Mail International: 3-6 weeks typically but up to 3 MONTHS, limited to no tracking
USPS Priority Mail International: 1-2 weeks, full tracking

Guarantee & Returns

We guarantee our tubes for 90 days upon receipt. If anything goes wrong in that time, we will replace tube once returned to us. We also pay the return shipping or will send you a prepaid shipping label so you will not be out anything. We accept returns if a tube arrives faulty or becomes faulty within the warranty period. Noise and/or microphonic issues are covered. We reserve the right to deny returns for buyer's remorse including the buyer's opinion on "tone".