Great matched pair. Test strong @ 80%. Rated Strong. No shorts. Tested with Knight 400A Tube Tester.
Item Tag: Czech Republic
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Vintage homemade audio player. Works perfect. from the Czech Republic
normal work click the ADD TO CART BUTTON start YOUR OWN exclusive collectionclick the ADD TO CART BUTTON below before prices rise!I still do not have a big rating, but I’m vying for delivery and honesty.You transfer the money to my intermediary, who gives them to me. After you receive the goods. Payment: I accept PayPal only. If you don’t have PayPal account and would like to pay with your Credit Card, check this step-by-step tutorial on PayPal:https://www.paypal.com/webapps/mpp/pay-onlineYour order will be shipped only after the payment is cleared. I combine shipping I selling this AS IS working condition unknown. I do not check for and do not know if there is any issues that are not visible on outer case All my items are sold in as shown condition I do not know if they will work and do not guarantee them to work once received they are SOLD AS IS You have collectible item that increase in value over time & perfect gift idea as well Each my item will be very carefully packaged and shipped after payment has been cleared. I ship worldwide by reliable carrier providing a tracking number. If you have any questions or require further information concerning the item, feel free to contact me. Thanks so much for taking the time to come over.
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KR Audio 300B Matched Pair Vacuum Tubes Tested w/ Reports Made in Czech Republic
KR AUDIO 300B MATCHED PAIR (CZECH MADE). Hand-crafted in Prague, these tubes are the primary source of unyielding authority and lifelike texture in high-fidelity systems. This matched pair, complete with original provenance and recent testing data, embodies the absolute integrity that professional audiophiles demand.
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300B MESH PLATE AV5M ALESA VAIC PAIR NOS tube valve lampe röhre tsf 진공관 真空管 AMP
300B MESH PLATE AV5M ALESA VAIC Made in Czech Republic PAIR NOS tube valve lampe röhre tsf 진공관 真空管 FOR AMPLIFIER DIRECT HEATED MESH TRIODE FOR HIGH-END AMPLIFIERS: DRIVER FOR ALL POWER TRIODES FILAMENT Vf= 5 vOLT If= 1,3 AMPERE ANODE DISSIPATION MAX 15 WATT ; OUTPUT POWER MAX 5W RMS GLASS DESIGN C-37 ; MESH NiSC / SOFT CARBON / TECHNOLOGY ; SUPER LONG LIFE 40.000 HOURS ; HARD METAL CATHODE ; ULTRA HIGH VACUUM 10/-8 ; TORR, GRID CURRENT O,2uA AT FULL POWER ; SUPER LINEAR MESH PLATE , LOWERED THD , IMD AND VERY FINE SOUND WITH MORE MUSICAL DETAILS Ua MAX = 400 VOLT Ua TYP = 350 VOLT ; Ia mAX = 100 mA ; Ia TYP = 40 mA ; PLATE IMPEDANCE : Ra = 930 OHM ; AMPLIFICATION FACTOR u = 4,3 ; TRANSCONDUCTANCE s : 4,6mA/V ; LOAD IMPEDANCE Ra = 2500 – 5500 OHM ; GRID RESISTOR : 100 OHM FULLY TESTED WITH ROE TEST TUBE 1 = 107% TUBE 2 = 80% AVVT stand for Alesa Vaic Vacuum Tube these tubes AV5SL are designed for driving Power Tubes that need a high input voltage on the grid, such as the AV520B-SLX, VT-4C, UV845 and similar tubes. other applications are very Linear Output tube (pre-amplifier, Head-Phone Amplifier) . Also it can be used as an Output tube, producing Maximum 5 Watt Single Ended. It uses AVVTs unique Open filament structure, resulting in extreme linearity, also at high output voltage. Features: AVVT’s parallel ribbon filaments with 16 flat surfaces, for more linearity ; two large getters ; white Nickel plates ; c37 Shaped Glass ; Anti-microphonic Suspensions in tube top ; Hard Metal filaments which can never break ; Ceramic UX4 Socket with Gold Plated pins. Note: the “Open Filament Structure” means, the filament and the grid are longer than the anode, and stick out on both ends for about 5…8mm. The not fully warm ends of the filaments do not have a very good function, and cause distortion. This tube doesn’t use this part of the filaments. Emitted electrons from the cold ends, will bypass the anode, and land on the glass. At maximum Power this may cause fluorescent, blue glow on the tube glass inside. Note also “Hard-metal filaments” are operated at much higher temperature than normal tubes. This tube will glow bright orange, instead of the dark orange color of nickel filament tubes. Individual test data has been done with ROE computer tested all test results are printed and comes with tubes. ALL DOCUMENTS WILL BE SENT WITH TUBES PROFESSIONAL SAFE PACKAGE SHIPPING CODE TUBE 1 = 2031 S ( internal serial number on metal engraved tag ) see picture number 4 embedded in this listing CODE TUBE 2 = 2023 S ( internal serial number on metal engraved tag ) see picture number 4 embedded in this listing tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER Pre-Amplifier Preamp Pri VINTAGE stereo SE Single Ended PP Push-Pull VACUUM TUBES röhren
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E88CC TESLA Top O Getter Gold Pin Made in CZECHOSLOVAKIA AmplitrexTested Qty 1MP
E88CC TESLA. Top “O” Getter. MADE IN CZECHOSLOVAKIA. We specialized in thoroughly tested and screened quality vacuum tubes.We have various type of valves and tubes testers Like Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160.
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Pioneer RT-909/901 / 1 pair of NEW REPLACEMENT PINCH ROLLER TIRES
1 pair NEW ROLLER SPARE TIRES for Pioneer RT-909/901 tape reel to reel – high quality parts Ground on a pulley for quality Wow & Flutter Designed by LeRoy Hifi, Czech Republic, EUROPE – NEW replacement tires for pinch rollers. with instruction manual Made of UV, available chemicals and available high quality rubber. They are self-vulcanizing tires that glue to the core do not need any glue. In my photos you can see the exact production process. Here are a few simple tabs to replace an old bad rubber tire ad with a new one: Your careful attempts with caps, sometimes stuck on the core, which are too connected, can be removed with a very sharp painting spatula. Wash thoroughly, but in this determination unsuitable acetone, which would soften the plastic. A place where an alcohol or oil based director can be used.1. Unscrew the nip roller from the deck and remove the cap2. Use a sharp knife to cut out the old bad rubber from the metal core 3. Remove acetone diluent from the core4. Use a pocket with a detergent to help you slide a new rubber tire over your metal core and then push down firmly, waiting on the other side to not straighten.If you have any questions, please feel free to email me. Free shipping in all European countries via Economy Mail. Delivery time 7-10 days in advance on the ground.
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Pioneer RT-909 / 901 One pair of NEW PINCH ROLLERS ASSEMBLY Logo on rear
Up for sale is 1 pair of NEW PINCH ROLLERS ASSEMBLY for Pioneer RT-909/901 reel to reel tape deck – each tire is ground on a pulley for excellent Wow & Flutter It’ has been designed by LeRoy HiFi, Czech Republic, EUROPE – NEW complete pinch roller assemblyMade of UV, high quality rubber resistant to chemicals and solvents.The original caps will fit on the cores.the cores are self-lubricating sintered bronzeOn my photos you can see precise manufacturing process.Each pair comes with the original allen wrench you need to replace your pinch rollers, no other tools needed. Just make sure you don’t lose the original plastic washers /there’s one on each side/ after removing your rollers. Any questions, please don’t hesitate to message me. Shipping is free within all European countries via Economy Mail. Delivery time 7-10 days depends on the country.