Check the listing for details. New 1x Sovtek 5AR4 / GZ34 / 5U4 | One / Single Rectifier Tube | Free Ship. Condition: New. Listed at 33.95 USD. Brand New Sovtek 5AR4 Rectifier Tube Our Testing Policy At Tonal Tubes we ensure that every single rectifier tube works with a tube tester before shipping it out to our customers. Why You Should Do Business With UsEvery tube is checked for shorts and leakage on a calibrated Eico 667 tube testerComes with original packaging from the factory, as shown in the pictureVery competitive pricesFast shippingShippingTubes will be shipped with USPS First-Class MailMost orders are shipped within 24 hoursTracking information is included for every purchaseReturn Policy Customer satisfaction is our #1 priority. If you are not pleased with your purchase you may return your item for a refund up to 30 days after purchase. About Us We are musicians who crave awesome tones. We all know that swapping out tubes can be one of the more effective ways of improving your tone. At Tonal Tubes, we help you achieve that next level tone.