Sed kt88 datasheet pdf

Single tube pushpull ua 250 270 v ug2 250 270 v ug1 14 17,5 v ia 72 4 ma ig2 5 11 ma ra 22,5. Most of these datasheets are in english except where noted otherwise. Svetlana technical data kt88 high performance audio. Very powerful, with strong bass and very bright highs. Kt88 is a beam output pentode with an octal base and power of 42w. Close manufacturing specification tolerances and improved processing provide improved.

Here youll find a modest collection of datasheets for some popular tubes. Jean hiragas singleended kt88 tube amplifier schematic with 12ax7 ecc83 tube input stage. Sed sv6550c high performance audio beam power pentode sed. In another amp, which was designed for kt88s, i found the sed kt88s a bit too thick in the lower mid range and unresolving. Kt88 datasheet, kt88 pdf, kt88 data sheet, kt88 manual, kt88 pdf, kt88, datenblatt, electronics kt88, alldatasheet, free, datasheet, datasheets, data sheet, datas. Because of our tradition of supplying the highest quality tubes, we are proud that our ouput is the very best in the world for upgrade and replacement. Sed sv6550c high performance audio beam power pentode est. Holco or caddock resistances on cathode, elna cerafine capacitors on cathode and power supply. The pcb also includes a tubebased power supply, using 5u4 or whatever tube you like, and snapmount capacitors on the pcb. Pricing above includes matching in any quantity you need at no extra charge. Tube compliment in the photos is a sovtek 6n1p in the driver position and a pair of matched electroharmonix kt88eh in the output positions. This tube is a true workhorse and a great value, and shipped as original 6550 tube in many amps from the factory.

I came across many interesting amplifiers but found an odd ball one from grommes precision. After many years designing single ended amplifiers i have decided to start a series of test about the push pull amplifiers. It writes in there prototype kt88, and indeed does not have the 10% heater voltage variation the the 6550. Electroharmonix owns 100% of the largest remaining vacuum factory in the world. With a goldplated molybdenum alloy grid and carbon coated screen grid, the svetlana kt88 is the finest power tube of its type be ing manufactured today. It is intended for audio frequency power amplification service. Kt88 datasheet, kt88 pdf, kt88 data sheet, kt88 manual, kt88 pdf, kt88.

In some monos designed to use kt90s, i use the kt88 which adds a bit of warmth in the lower midrange. Ive heard shuguang treasure kt88 zs in a couple different single ended amps. Winged c sed 6550c and kt120trying to decide steve. The ecc88 is a vhf double triode with separate cathodes.

Svetlana technical data kt88 high performance audio beam. Kt120 datasheet, cross reference, circuit and application notes in pdf format. The purpose of this kt88 kt66 6550 kt90 kt120 page is to give an. Output pendode el34 is an octal power tube with a maximum plate power of 25w. The sed 6550c is a glass envelope beam power pentode. The el37 was of pinch construction whereas for the el34 mullard used the pressed glass foot construction employed on the b9a and b7g miniature. I designed a driver pcb using two 6sn7s that can drive just most tubes, triode or pentode.

Kt972a datasheet, equivalent, cross reference search. Buy ktd2026 kec, view the manufacturer, and stock, and datasheet pdf for the ktd2026 at jotrin electronics. Ive heard shuguang treasure kt88zs in a couple different single ended amps. Mf116701 sed 35 series lcd controller icstechnical. About passive components types, i dont leave many choices. It is one of the largest tubes in its class and can handle significantly higher plate voltages than similar tubes, up to 800 volts.

Ella push pull el34kt88 amplifier schematic diy hifi supply. Jun 08, 2015 home schematics ella push pull el34kt88 amplifier schematic. Pricing above includes matching in any quantity you need at no extra. Ive seen pentode curves for the kt120, and theyre pretty ugly. The kt88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. The 50hz measurement was used for lows, 700hz for mids and 6khz for highs. The 6as7g tube is best known for being the tube used in atmasphere otl tube amplifiers. The svetlana kt88 is manufactured in the svetlana factory in st.

High plate dissipation rating, close manufacturing specification tolerances and thorough processing provides improved reliability and superior sonic performance. Mf116701 sed 35 series lcd controller icstechnical manual. Mullard el34 a modern recreation of the classic mullard. In fact svetlana petersburg sued new sensor for this, and the result. Most of the datasheets are in pdf format and some are links to other html pages. Jun 17, 2002 datasheet kt88 adobe acrobat format but i have tested with this circuit output tubes like the kt90 ei. Kt838a transistor datasheet pdf, kt838a equivalent.

It is extra handselected by btb for low leakage and premium matching. Nov, 20 after finishing the tubes4hifi st70 i started looking for a kt88 monoblock that had a lot of glass. Kt88 beam power tetrode t he svetlana kt88 is a beam power tetrode having a large standard octal base and glass envelope. Clammy the svetlana brand, in the uk is what we call sed here. The music amplifier ma3 uses 42 6as7 tubes per channel. This exhibit is of earlier manufacture than ecc88 as can be seen by the logo. Kt838a datasheet, equivalent, cross reference search. Jean hiraga 12ax7 ecc83 singleended kt88 tube amplifier. Seiko epson reserves the right to make changes to this material without notice. Its exclusive screengrid radiator fins reduce a major source of. If they spec out the european svetlana, that means youre getting sed. Petersburg, russia characteristics sed outline drawing base pin connections bottom view 1686 barcrest dr.

Je vindt hier een bescheiden verzameling datasheets van populaire buizen. This amp was designed mostly to work with kt88, 6l6, or el34 tubes in either triode or ultralinear mode. Weve been playing these in everything from the primaluna amps to the manley classic 250s, and they sound great. Specifically designed for audio amplification, the kt88 has similar ratings to the american 6550 which was designed for use as a servo. These kt88 specifications are provided asis, with no warranty of any kind.

High voltage safety ez260 gallery hammond chassis grommes 260a schematic ez260 schematic kt88 datasheet 6l6gc datasheet 12au7 datasheet 5u4gb datasheet 0b2 datasheet edcor power transformer edcor output transformer edcor choke diy audio thread ugly signal thread. With a number of different kt88 tube amplifiers we have had good results using new production jj kt88 blue glass and genalex gold lion kt88 tubes. With various kt88 amplifiers we have had good results using the new production jj kt88 blue glass and genalex gold lion kt88 tubes. Nice warmth, plenty of detail, but will retain a little more top end extension than the sed winged c. In general, the kt88 tube has a magical midrange similar to the smaller el34 tube, but with low and high end extremes that reach much further. The kt88 is used in a number of projects that i have built. Overall i have had very good luck with the jj tubes, and will continue to use them. Ktd2026 kec discrete semiconductors jotrin electronics. Close manufacturing specification tolerances and improved processing provide enhanced. The kt88 is a beam tetrode k inkless t etrode hence kt vacuum tube for audio amplification. In audio amps, jj 6550 performs similar to jj kt88, with excellent three dimensional soundstage that jj kt88 is known for. Sed1565 series 82 epson series specifications product duty bias sed dr com dr vreg temperature shipping name gradient forms sed1565d0b 165 19, 17 2 65 0.

One triode acted as the local oscillator and the other as the mixer frequency changer. This was their 260a and it had some interesting things, for one it was not an ultralinear amplifier, and it featured a screen regulator if you could. T he svetlana kt88 is a beam power tetrode having a large standard octal base and glass envelope. Buy winged c 6hc 6as7g vacuum tubes online, in stock and ready to ship. Most of the parts are in stock except transformers. With an anode to anode load of 4,000 ohms and 550 volts on the anode a pair run in ultra linear ab1 will deliver 100 watts at 3. Warranty information and return policy warranty period. The el34 was the 1952 successor to the very successful el37 and both share a high value of mutual conductance 11. Sovtek 6550we is a straight bottle 6550 modeled after the original ge 6550a. It is intended for ultra linear audio frequency power amplification service. No part of this material may be reproduced or duplicated in any form or by any means without the written permission of seiko epson. Whereas generally the military love this 10%, because of field appliciations. Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.

Svetlana kt88 high performance audio beam power tetrode the svetlana kt88 is a glass envelope beam power tetrode. Jean hiraga 12ax7 ecc83 singleended kt88 tube amplifier schematic jean hiragas singleended kt88 tube amplifier schematic with 12ax7 ecc83 tube input stage. Winged c 6hc 6as7g datasheet pdf download adobe acrobat pdf reader. From speakers to batteries to transformers and many other components. Kt88 is a low distortion, high output power tube developed specifically for audio. Sed 6550c vacuum tubes manufactured in st petersburg, russia. Petersburg, russia, and is designed to be a direct replacement for any kt88, kt90, kt99 or 6550. An audio frequency generator was used to sweep from 10hz to 20khz with the input voltage measured at the 6l6gc control grid and the output voltage measured at the output transformer secondary winding while connected to an 8 ohm load. Sed 6550c high performance audio beam power pentode.

With a goldplated molybdenum alloy grid and carboncoated screen grid, the svetlana kt88 is the finest power tube of its type being manufactured today. The svetlana el34 is a glass envelope power pentode having a plate. Sed winged c tubes should now be considered nos new old stock. Beam pentode kt88 is a beam output pentode with an octal base and power of 42w. The new kt88 features greatly enhanced sonic performance.

The ecc88 was designed for service as a cascode amplifier in the front ends of vhf radio receivers. They sound very nice, just a bit on the spendy side for a matched quad. So strictly speaking, cv5220 is lower specified than 6550 and kt88. No part of this material may be reproduced or duplicated in any form or by any means without the written.

The el34 is a much loved audio power valve with an anode dissipation of 25 watts. Pushpull kt88 class a amp with universal driver pcb. Increased peak cathode emission from new cathode materials. I dont see any advantage running kt120s in an amp thats designed around kt88 s. Sed sv6550c high performance audio beam power pentode. Conversely the kt90s and the 6550s are a bit lacking in body. The el37 was of pinch construction whereas for the el34 mullard used the pressed glass foot construction employed on the b9a and b7g miniature valves for this io. Jj electronic vacuum tubes, capacitors, amplifiers.

Oct 14, 2016 the kt88 is one of the few classic audio output valves. Svetlana kt88 melbourne australia tube audio melbourne. Posted on june 8, 2015 june 8, 2015 ella push pull el34kt88 amplifier schematic. Sed 35 series lcd controller ics technical manual mf116701. Today, there are a number of quality kt88 tubes available for audio and guitar applications. The photos below are of bernardos diy singleended kt88 tube amplifier following mikael abdellahs schematic. The kt88 fits a standard eightpin octal socket and has similar pinout and applications as the 6l6 and el34. Im not sure what the plate voltage is on the power tubes of the vba400. Sed el34 sed kt88 sed 6550c sed 6l6gc services sed news contact us home. We stock kt88 tube sets that are precision matched. The figures given are for single ended use, but the valve is almost invariably used in push pull pairs. Svetlana kt90 kt90 svetlana kt99 svetlana 6550 kt88 svetlana kt90 kt88.

Recent listings manufacturer directory get instant insight into any electronic component. In another amp, which was designed for kt88 s, i found the sed kt88 s a bit too thick in the lower mid range and unresolving. The svetlana 6l6gc tube has a nice balanced sound that is not as bottom heavy as say the tad and not as bright as the sed. New kt88c performance audio s4a btb matched pairset. Due to the high current and power capability of these tubes, it is very important that the kt88 tubes are well matched. Please see the substitutes at the top of the page for more details.