Vacuum Tube, 7025, Redbase, Tube Amp Doctor, High Grade, Preamp
Specifications
| Return Shipping Will Be Paid By | Buyer |
| All Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 60 Days |
| Refund Will Be Given As | Money Back |
| Brand | Tube Amp Doctor (TAD) |
| MPN | T-7025-RB-TAD |
| Compatible Brand | Any |
| Compatible Model | Any |
| Features | None |
| Amplifier Type | Unknown |
| Heater Voltage Series (AC Or DC) | 12.6V +/-1.0 |
| Heater Voltage Parallel (AC Or DC) | 6.3+/-0.5 |
| Heater Current Series Current | 0.18 |
| Heater Current Parallel | 0.35 |
| Cathode-to-heater Potential, Max. | 170 V |
| Direct Interelectrode Capacitances, Max. Grid To Plate | 1.8 pF |
| Direct Interelectrode Capacitances, Max. Grid To Cathode | 1.9 pF |
| Direct Interelectrode Capacitances, Max. Grid To Heater | 0.3 pF |
| Direct Interelectrode Capacitances, Max. Plate To Cathode | 0.5 pF |
| Operating Position | Any |
| Height | 56 mm |
| Seated Height | 49 mm |
| Diameter | 22.5 mm |
| Cooling | conventional |
| Approximate Net Weight | 12 g |
| Max. DC Plate Voltage | 330 V |
| Max. Positive DC Grid Voltage | 0 V |
| Max. Negative DC Grid Voltage | -55 V |
| Max. Plate Dissipation | 1.2 W |
| Max. Bulb Temperature (surface Hottest Point) | 165°C |
| Cathode Current | 8 mA |
| Rg-k Max. | 2.2MΩ |
| Type | Vacuum Tube |
Product Details Vacuum Tube, 7025, Redbase, Tube Amp Doctor, High Grade, PreampT-7025-RB-TADSold individually The all-new TAD 7025 / E83CC Redbase Highgrade is carefully selected for all the demanding gain stages in any guitar or headphone amp, tube microphones or the extremely sensitive phono preamp-positions in audio amplifiers. Tonally, this tube produces fine, airy, silky and pleasant highs, a complex and dense midrange with clarity and definition in the low end - providing maximum smoothness and zero microphonics. Great warm cleans and creamy overdrive. Fine, unobtrusive highs, complex, dense mids and clear real bass. Selected for demanding applications for maximum smoothness and zero microphonics - even with very sensitive input stages of high-gain amplifiers. Ideally suited and our clear recommendation for the 1st gain stage of guitar amps, headphone amps, tube microphones and for the extremely sensitive phono preamp-stages of audio amplifiers. In terms of sound, this TAD 7025 / E83CC Redbase stands for maximum transparency and depth definition and puts an end to musty or sappy highs. Airy, silky highs combined with tight but by no means overemphasized bass are the hallmarks of this 7025 Highgrade. It supports the traditional Fender® tone and brings more liveliness and brilliance to an AC30®. Your Boogie® or Marshall® will benefit, too. The TAD 7025 / E83CC REDBASE® can replace any ECC83, E83CC, ECC803S, 12AX7, 12AX7A, 12AX7M, 12AX7WA/WB/WC/LPS/EH, 5751, 7025, CV492 and CV4004. Also replaces the MESA® SPAX7-A. Q: When does a preamp tube become a Premium Selected tube? A: All preamp tubes labeled Premium Selected have passed the following tests: Low Noise Test Microphonic Test Gain Test Sonic Tests Shock Tests Listening Tests Balanced Output Test Not what you're looking for? Check out our other products in this category:Vacuum Tubes -> PreamplifierClick here to visit our ebay store's homepage.MeasurementsProduct Measurements:Approximate net weight12 gBaseE9-1, Small Button 9 PinCathode-to-heater potential, max.170 VCathode Current8 mACoolingconventionalDiameter22.5 mmDirect interelectrode capacitances, max. Grid to cathode1.9 pFDirect interelectrode capacitances, max. Grid to heater0.3 pFDirect interelectrode capacitances, max. Grid to plate1.8 pFDirect interelectrode capacitances, max. Plate to cathode0.5 pFHeater Current Parallel0.35Heater Current Series Current0.18Heater Voltage Parallel (AC or DC)6.3+/-0.5Heater Voltage Series (AC or DC)12.6V +/-1.0Height56 mmMax. Bulb temperature (surface hottest point)165°CMax. DC plate voltage330 VMax. Negative DC Grid Voltage-55 VMax. Plate dissipation1.2 WMax. Positive DC Grid Voltage0 VOperating PositionAnyRg-k max.2.2MΩSeated height49 mmPackaging Information:Packaging Dimensions3.250000000 in. x 1.000000000 in. x 1.000000000 in.Weight (Packaging).037500000000 lbs.About UsAbout Amplified Parts:Backed by over 30 years of experience serving the electronic hobbyist market, Amplified Parts® provides the parts you need to modify, repair, or build your own audio and musical instrument equipment, from transistor radios to vacuum tube amplifiers, guitar pedals, and modular synthesizers. Our mission is to provide our customers with high quality products from an inventory of over 12,000 unique items, and to share our expertise via our large library of tech articles and equipment build guides.Whether you are building cutting-edge equipment or restoring classic gear with historical accuracy, Amplified Parts® has what you need.We typically ship the same day if your order is placed before 12:00pm Arizona Time Monday through Friday excluding holidays.All packages are insured and we assume responsibility for the shipment until the carrier shows delivery.Click here to visit our ebay storefront.
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