--- product_id: 70382868 title: "Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin Socket for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 (CT1-P, Plate Current)" brand: "douk audio" price: "€ 33.35" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/70382868-nobsound-vacuum-tube-amp-amplifier-plate-bias-current-probe-tester store_origin: HR region: Croatia --- # Universal Compatibility Easy-to-Use Interface High-Quality Construction Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin Socket for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 (CT1-P, Plate Current) **Brand:** douk audio **Price:** € 33.35 **Availability:** ✅ In Stock ## Summary > 🔍 Unleash the Power of Precision Testing! ## Quick Answers - **What is this?** Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin Socket for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 (CT1-P, Plate Current) by douk audio - **How much does it cost?** € 33.35 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/70382868-nobsound-vacuum-tube-amp-amplifier-plate-bias-current-probe-tester) ## Best For - douk audio enthusiasts ## Why This Product - Trusted douk audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready to Use:** Comes fully assembled with dedicated customer support. - • **Durable Build:** Crafted with premium materials for long-lasting performance. - • **Direct Readings:** Get immediate bias current readings in milliamps—no math required! - • **Precision Testing:** Test a wide range of vacuum tubes with pinpoint accuracy. - • **User-Friendly Design:** No complex setup—just plug and play for instant results. ## Overview The Douk Audio Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester is a versatile tool designed for testing plate current in various vacuum tubes. With its user-friendly interface, durable construction, and direct reading capabilities, it ensures accurate measurements for both professionals and hobbyists. Each unit comes fully assembled and ready for immediate use, making it an essential addition to any audio technician's toolkit. ## Description Douk Audio Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin Socket for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 (CT1-P, Plate Current) ## Features - Universal Compatibility: Designed to test plate current in a wide range of vacuum tubes including EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, and 7027 (CT1-P), ensuring precise measurements for various amplifier setups. - Easy-to-Use Interface: Featuring a straightforward procedure, simply insert the probe, connect the multimeter, and obtain accurate readings in milliamps. No complex setup required, making it user-friendly for technicians and hobbyists alike. - High-Quality Construction: Crafted with a durable copper body for superior conductivity and a ceramic socket with gold pins for reliable and long-lasting performance. The 23cm tube socket cable provides flexibility during testing. - Direct Reading in mA: Get a clear, direct reading of the bias current in milliamps with your multimeter set to the mA range, allowing for quick and efficient testing without the need for conversions or calculations. - Comprehensive Package & Customer Support: Each purchase includes a fully assembled plate current probe ready for immediate use. ## Images ![Nobsound Vacuum Tube Amp Amplifier Plate Bias Current Probe Tester 8 Pin Socket for EL34, KT88, 6L6, 6V6, 5881, 6550, KT66, KT100, KT120, 7027 (CT1-P, Plate Current) - Image 1](https://m.media-amazon.com/images/I/616lTdw4uQL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Makes biasing your amps power tubes a breeze. *by P***Z on Reviewed in the United States on April 27, 2024* These are nicely made, quality bias probes. I saw some reviews complaining about the length of the wires but I think they have extended them because the wires on mine came about twice as long as pictured or the measurment listed. In any case they are plenty long enough to get the job done now. Get one for each of your power tubes, two power tubes, get two, four, get four. You don't want to bother with having to switch the probe back and forth and waiting for the tubes to cool and warm up. Get one for each tube and even better get a meter for each probe. There are plenty of $10-20 digital multimeters that will work perfectly. for this. Most imnportantly be safe. You should not be connecting or disconneting anything without the amp off, unplugged, and the capacitors drained. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Better than expected! *by N***C on Reviewed in the United States on February 24, 2023* For the price I was not expecting much but this is actually a great little device and is not as expensive as other bigger names. I used it to bias a Deluxe Reverb Reissue, 6V6 and worked great! So much easier and safer than probing tube sockets in the chassis.The leads are not very long though, so keep that in mind. Plus, if you’ve not done this before, the leads are dangerous if in the tube socket with the amp on and out of standby. Make sure those leads are inserted in the multimeter prior to energizing the amp.Also make sure to let the tubes get good and hot, settled in before final bias. I actually like to get new tubes that have had a 24 hour burn in time to help. ### ⭐⭐⭐⭐ 4.0 out of 5 stars Works *by R***S on Reviewed in the United States on February 8, 2024* Works good --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/70382868-nobsound-vacuum-tube-amp-amplifier-plate-bias-current-probe-tester](https://www.desertcart.hr/products/70382868-nobsound-vacuum-tube-amp-amplifier-plate-bias-current-probe-tester) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-24*