Vintage Tube Amp

Thank you for visiting my page! This is a single OPT with a primary side of 7K? , ideal for ST tubes such as 42 and GT tubes such as 6F6. Regarding accessories, you will only receive the products shown in the photo. Please see photos and video if available. We will pack the product securely and deliver it safely. International Buyers – Please Note. We do not mark merchandise values below value or mark items as “gifts” Because declared value is insured value. Besides US and Int. Ernational government regulations prohibit such behavior. Japanese mechanical products use 100 volts. A transformer is required if it does not match your country’s voltage. Do your own research and prepare a suitable transformer. We try to describe any items to the best ability and offer you the best values and an good quality. We specialize in Japanese tradition products, so please look at our other items and enjoy feeling Japanese culture! Maybe we can find it for you.

Offered for sale are the 3 tubes as titled and pictured. These particular 3 tubes tests strong and are closely balanced / matched. The tubes’ test results are displayed in the photos (New 5751 Spec 100% = 1,200 Gm). Note: Even though this tube is often considered interchangeable with the 12AX7, the 5751 does have a bit less gain than a 12AX7, so the test results displayed are the actual Amplitrex specs for the 5751. Also, these tubes are labeled Westinghouse, and there are no other EIA codes or numbers on them, but based on their construction style. And by comparison of hundreds (if not thousands) of other tubes over the years, they appear to be of Raytheon make / origin. So far, these boxes are still just a concept and in the prototype stage (3D Printed). Any and constructive feedback on the idea is welcomed and appreciated. Eventually I plan to offer these boxes for sale by. Themselves, but not quite yet. See the photos for physical / cosmetic condition. Notes Regarding Tube Tests. All tubes are tested on an Amplitrex AT-1000 tester in the automatic Fixed Bias Mode (for the most conservative results). Test Results are for a general reference only, and are not a guarantee of performance, nor a guarantee of how they will test on your tester. No real world (audio) performance measurements are taken.