Ecc88 Heater Current, Any amplifier/pre-amplifier/DAC using the 6DJ8/6922/ECC88 group tubes should provide enough heater I am looking for a tube with the characteristics ( both electrical AND physical) of the ECC88/6DJ8/6922 but with a 12. TUBE ECC88 Receiver Tube• VHF-Receiver • Noval-Socket continue reading Technical Details Technical information back The tube features high transconductance, low noise properties, as well as extreme reproducibility of characteristics as a result of the frame grid construction. A quick Newbie heater question please: I'm looking at building a preamp using Ecc88 or equivalent using dual rail 24v (to keep the cost down). T. Comprehensive technical guide to the 6DJ8/ECC88 vacuum tube: history, specifications, applications, and substitutes for audio and RF enthusiasts. They will heat up differently for sure. I believe that using alternating current (AC) on the tube Hi, I want to draw up a list of valves which are pin compatible with the ECC88 / 6DJ8 type base configuration. Manufacturer: List of Unclassifed Manufacturers. E. 365mA (ECC88). It didn't last longer than a minute. The maximum voltage allowed between the heater and the upper cathode is 150V. The heater is designed for parallel operation Secondly, it helps you troubleshoot issues and diagnose potential problems. It has a rather high internal ECC88 Preamplifier / buffer September 16, 2016 by Ventsislav Simonov 6 Comments This is a quick entry to demonstrate a simple topology Secondly, it helps you troubleshoot issues and diagnose potential problems. 3W of dissipation on the heater. Learn about this dual triode's technical specs and sound characteristics. Cathode to heater volta e: Positive, v, not more Ne ative,v not more Plate current, ma not more Plate dissi ation ower of each triode, W, Each triode rid circuit resistance: under automatic bias, Mohrn not Also the PCC version is intended for TV sets that typically used all tubes in series. Any suggestions? Cheers Ian I am looking for a tube with the characteristics ( both electrical AND physical) of the ECC88/6DJ8/6922 but with a 12. By means of this simple rectifier circuit, the first Heaters can be connected in series or parallel using jumper links (total heater current must be less than 1. Die PCC88 hat ungefaehr 7V Heizspannung bei genau Features Universally popular with audiophiles and music enthusiasts USSR-military grade tube Ideal for replacing any 6922, ECC88, or 6DJ8 tube Check Current ECC88 vacuum tube specifications, history, and audio applications. But only 10% different I have dropped the ECC88 into circuits designed for ECC86 and Tube ECC 88 or Röhre ECC88 ID2488, Double Triode, Noval, 9 pin miniature (USA pico-9) B9A and UHF shown. The tube satisfi es the specifi cations in accordance with MIL-E-1/1J168 (NAVY) from 18. Description: AMPEREX TUBE TYPE. The tolerance of heather current (column II) should be taken into account. 6. Durch die Rechtlichen Grauzonen der EU Datenschutzverordnung (DSGVO) bzw. Note that it is the E88CC which is the industrial/special version, but this is not The PCC88 filament is designed voor series operation, with a current of 300mA. This means it has longer life and lower noise when used in place of 6DJ8. ECC88 is a special quality double triode. Discussions here should be of a general nature and not about View results and find ecc88 datasheets and circuit and application notes in pdf format. ECC88 has a 6. About Valves (Vacuum Tubes) London-Series Valve types The Phædrus Audio PHAB and PHILTER employ an EF86 pentode input valve and an ECC88 valve Hi, The heater current depends on the cathode size. Here is a If we look at the power of the heater, and we consider that the PCC88 and ECC88 are the same tubes, then it is correct 7. I'm using 7V heater variant - PCC88. newbie questiun on E88CC and ECC88 Are these tubes the same or what are the differences, any gotchas? As ECC86 and ECC88 don't have anything else in common than the heater data and the pinout, This is not true. Input 🔎 YouTube Video zu ECC88 Hinweis: An dieser Stelle war ursprünglich ein eingebettetes YouTube Video enthalten. The PCC88 tube is often claimed to be a direct replacement for the ECC88 / 6DJ8 tube. 3V to a pair of ECC88. Discover everything you need to know about the 6N1P tube, including its datasheet, pinout, equivalents, and comparisons to popular tubes like 12AX7, 6922, 6N2P, ECC88 Datasheet. Makes you wonder why the PCC88 was needed at all, if they could make Use of these parameters shall be entirely at the user's own risk. However, the heater of the PCC88 is specified to operate If we look at the power of the heater, and we consider that the PCC88 and ECC88 are the same tubes, then it is correct 7. 6N23P = E88CC = 6DJ8 = 6922 tube. I have always been At current prices, these are about one-third to one-fourth the cost of NOS Western Europe types, and so their value is enhanced even more. Datasheets tubes and help. 3 A, while the ECC88 draws 0. I've read on other sites that the Ecc88 heaters Replacing ECC85 with ECC88 Components and Circuits Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. 6 you have, you could connect the 12AX7 in series Keeping the heater on with no anode current may cause sleeping sickness (cathode interface) problems, unless the valve has a special cathode which avoids this. 3V heater (only) which draws 300mA (360mA for some 6922 or E88CC types). Die Röhrenverstärkerbauer tun sich mit ihren PCC88 oder ECC88 keinen großen Gefallen, wenn eines Tages der Funkmesswagen vor der Tür steht. Some tubes can pass more cathode current, so they need more electron emission. Für den Kauf empfehle ich die Schlagwörter ECC88 E88CC 6922 PCC88 CCa. Here is a The current calculations also don't look correct, with 3. Best regards! Using the circuit shown ( ECC88 tubes ) should the heaters be connected to ground or somewhere between ground and HT ? Each channel's heaters are powered via a TO220 6v 6922 Genalex/E88CC Vacuum tube 6922 Genalex/E88CC is a miniature twin triode with equipotential cathodes, designed to amplify low freguency voltage in radio engineering devices. Hopefully current from Member Joined 2011 2023-04-19 12:50 pm #5 In all known to me datasheets the E88CC heater current is 0. The time now is 2:49 am. deren Hallo Zusammen,gibt es eigentlich eine der ECC88 vergleichbare Röhre, die eine höhere Heizspannung hat?Vielen herzlichen Dank im voraus. So I would avoid heater elevation if possible. The voltage is not referenced so just make sure the heater is working with a current close to the spec In Your case if ECC88 works with current 5 - 8 ma, on it plate +U is about 250 v, that is incorrect for it mode. Double triodes - Vacuum radio tubes, capacitors, socket for tubes, nixie, ferrites from military Russia. Current production 6N1P-EV tube (1999) branded with the original factory logo (right) and Svetlana brand name (left) The 6N1P (Russian: 6Н1П) is a Russian -made The power supply provides direct current (DC) for the tube heaters and a well filtered B+. Viele GrüßeMartin Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. The circuit for both units provides a heater voltage of 7 volts for PCC88 tubes The 5670 is tightly specified for heater current (more so than the 6DJ8/6922/ECC88 group). Im Vergleich zu anderen Röhren dieser Bauart fällt die verwendete Toleranz deutlich geringer aus. I might This is a quick entry to demonstrate a simple topology used in this ECC88 preamplifier. Any suggestions? Cheers Ian The biggest difference seems to be heater current - 330mA (ECC86) vs. Part #: ECC88. 7DJ8 / PCC88: This is Miniwatt PCC88-MWT PCC88 is a drop in replacement for 6DJ8 with a slightly different heater specification. Die This document outlines requirements and design details for a preamplifier. This was Suggested Circuit 201 and was originally titles Simple DC Heater Supply for AF Amplifiers but relates to DC for the first voltage amplifier stage. I like to add that the Philips repeater tubes have a constant current drive, where for longlivety the current may not deviate less than some percent or so. The PCC88 tube is often claimed to be a direct replacement for the ECC88 / 6DJ8 tube. For 90V cathode that means the tube has to drop 160V. Since my Die zuerst vorgestellte ECC88 ist mit der zusätzlichen Bezeichnung EHAA gekennzeichnet, der eingeätzte Code lautet GA8, darunter (Delta) 4G1. The ECC88 was designed for service as a cascode amplifier in the front ends of VHF radio The ECC88 is designed for cascode operation with one specified triode placed on top of the other triode. 6V heater. Use of these parameters shall be entirely at the user's own risk. One triode acted as the local oscillator and the other as the mixer The ECC88 was designed for service as a cascode amplifier in the front ends of VHF radio receivers. At least one says 300mA. *** Indirect 200 V Looking at different data sheets for ECC88, E88CC and 6DJ8, the heater current varies. However, the heater of the PCC88 is specified to operate Characteristics of a bogey tube: Electrical Heater Voltage (AC or DC) in Volts Heater Current in mA - 10% Heating Cathode-to-heater potential, Direct interelectrode capacitances, max. The strong similarity between PCC88 and ECC86 has been described The ECC88 was designed for service as a cascode amplifier in the front ends of VHF radio receivers. So that gives us options of 6dj8, ecc88, 6922, e88cc, cv2492, cv2493, e188cc, 7308, CCa, 6n23p, and 6n11 which are all very nearly identical, as well as the 7dj8, and 6N1P also needs a heating current about twice the heater of ECC88. Triode works good with 8-10 ma and 140-150 V on the plate. 3k and 105v supply, I should get about 31ma, but I get half of that, about 15ma. (*) These specifications are provided 'as-is', with no warranty of any kind. ECC88 by The EAT ECC88 is a special quality double triode. For this reason, one of the triodes had extra insulation between the heater and the cathode Quick reference data Anode current I a =1,2mA Transcoductance S=1,6mA/V Amplification m =100 Heating Heating is indirect by AC or DC, with serial or parallel supply. 1958. The tube satisfies the specifications in accordance with MIL-E-1/1J168 (NAVY) from Then again, if one stays with 6922 / ECC88 / E88CC / 7308 / ECC188, which do not require adapters, the heater current per tube falls to a nominal 300-365 mA from a nominal 600 mA TdP has specifically told me not to mix the PCC88 tubes with ECC88/E88CC/E188CC tubes, no matter what. 2A owing to track thickness); Output over-voltage protection REMARK With Vf applied to pins 9 and 4+5 and the centre tap of the heater transformer connected to earth, the triode section connected to pins 6, 7 and 8 is the more favourable section of the tube with The idea of the Grand Tube Review came from my long (20yr+) tube rolling history with the 6DJ8/6922/6N23P/E88CC tube type. The time now is 4:39 am. 365 A. No, you should get about 15mA with zero bias, Mind you they draw twice the heater current. ECC88 Cool Valve The E. I also want the tube to have a high output current at 9mA, so the operation point (the red The ECC88 is a VHF double triode with separate cathodes. They also draw 300ma The ECC88 was designed for service as a cascode amplifier in the front ends of VHF radio receivers. Datasheet: 166Kb/5P. Worldwide shipping Hi all, just did something stupid, hooking 12VDC instead of 6. It will have 5 high-level inputs with unity gain and an input impedance of 10k. Miniwatt . ECC83 is an older design audio (low) frequency twin triode. 6V and 300mA or 2. (You are already here) PART2) The 6DJ8 (European: ECC88) (Russian: 6Н23П) (P/N 154-0187-00,154-0305-00) is a dual triode vacuum tube with a B9A (Noval) miniature 9-pin Now I'm entering power supply fun zone!!! Heaters: I have transformer winding with ~7. Below is my list of pre tubes, as I Die ECC88 hat genau 6,3 Heizspannung, da sie fuer Parallelheizkreise vorgesehen ist - der Heizstrom betraegt dabei ca. 365 mA. I think 6922 filament current is 350mA? Not sure on that. But I think there is no direct link between the 12v ECC88 multivibrator Homebrew Equipment Pinout is different from the 12Axx tubes: pin 9 is an internal shield as opposed to the heater tap on the 12Axx tubes, and the socket needs rewiring to use them. So you may be able to use them in a ECC88/E88C ciruit, but first verify this with the seller of the amplfier, or try it at your own Ecc88 - e88c Components and Circuits All times are GMT. The max plate voltage of 6N1P is 300 v, and for ECC88 it is about 130, so that is something to consider if someone For all of the ‘Tube Heads’ out there, this is the place to share your list of tubes and what you think about them. One triode acted as the local oscillator and the other as the mixer Bei der EAT ECC88 handelt es sich um eine hochqualitative Doppel Triode. Variations of the heather voltage exceeding the range of 6,0 V to 6,6 V will shorten the tube life. ECC83 PDF Datasheet - Double Triode, Preamp Vacuum Tube, ECC83 pinout, ECC83 schematic, EC-C83 manual, ECC-83 data, circuit, equivalent. Current is unknown. I know of the ECC85, 6N1P, 6N2P, ECC88 Cascode Questions Components and Circuits All times are GMT. Bei der CCa handelt es sich um die Behördenversion der E88CC, sie ist sehr selten, Discover the 8 best ECC88 vacuum tubes after testing premium options. 1 Results. Finally, it enables you to make informed decisions about tube selection and matching for optimal audio quality. A. ECC88 / E88CC / 6DJ7 etc / NOS TUBES Last Update: 03/03/2026 15:08:06 PART1) General overview of ECC88 types. Radio tubes are valves. Dafür gibt es OTOH, what if you have tubes that don't have the same heater current? In this case, if you only had an 18V transformer instead of the 12. The voltage is not referenced so just make sure the heater is working with a current close to the spec The PCC88 filament is designed voor series operation, with a current of 300mA. But do you plan on using the ECC88 in a cascode gain stage? That was the whole reason that type was created, so if you're not using a cascode gain stage you might as well use a TAD 6922/E88CC Premium Select High-Mu Twin Triode The TADTM 6922/E88CC: is the High-End-Version of the ECC88 or 6DJ8. One triode acted as the local oscillator and the other as the mixer (frequency changer). When heaters are wired in parallel, the power valves should be first in the heater chain where the current is greatest, followed by driver valve / phase inverter, with The ECC88/6DJ8 was originally designed for cascode use, with one half stacked on top of the other. 3V. Tubes glow normally now, heaters draw ~300mA which is close to spec. I have not heard that before. 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