Stock) Russian 6P14P-EV as translated from Cyrillic. It is a military build that meets or exceeds the USA made specifications. Preferred Series tubes. Name, 6P14P. Type, Output pentode. Application, LF power amplification. Cathode type, oxide,indirect heating. Envelope, glass,miniature. Mass,g, Filament. 6P14P (6П14П) Pinout. No information available. 6P14P (6П14П) Substitutes. No information available. 6P14P (6П14П) Ratings. No information available.

Author: Bagal Zukinos
Country: Zambia
Language: English (Spanish)
Genre: Science
Published (Last): 7 October 2009
Pages: 136
PDF File Size: 4.43 Mb
ePub File Size: 6.20 Mb
ISBN: 931-4-48508-778-9
Downloads: 52197
Price: Free* [*Free Regsitration Required]
Uploader: Akinoran

The 6P14P-EB deals with all of these problems at the same time.

Index of /images/eBay/eBay_De/OROSZ csovek/= Datasheets/6P14P

Hum will start at kOhm or lower. Generally it can be said, just this is the weakness of Chinese tubes. They do not throw away tubes that are on the edge of the specs, but also not throw away over-stocked or not so well stored production materials.

Main thing, the tubes work, and if it goes wrong we replace them, they say.

Index of /images/eBay/eBay_De/OROSZ csovek/= Datasheets/6P14P

A good alternative is the EI EL84, which sometimes can be found. This is really special. The lower microphonics are reached by using double layer mica, which gives better stability to the system.

The longer lifetime can be achieved by using more expensive materials. Or better said, not use lower cost materials, of which the low cost EL84 is made of. A similar situation we have for the Philips EL84, also a fantastic tube, but expensive.

EL84 Only differences are listed here when identical, it is not listed.

Like a box of getters was in contact with air too long, etc. It was originally designed for the military to have long-life audio tube with low-microphonics, and not having to use the lower quality EL84 radio tube for this.


Even so, Chinese factories make it a sport, continuously tweak the processes for using cheaper materials, and leave steps and control away. This “resistor” injects a 50Hz ripple signal from the filament to datahseet cathode. Now, for the 6P14P-EB If you know about tubes, you will immediately recognize the is very special.

The table below is an extract from it. What is the best EL84 to buy? Also you can see if somebody picked out specific values, it’s not necesarily a bad lot, but you can never say why he wanted to have those that he picked out, and why he did not want to have those that he sold. This adds to the input signal and will be amplified by the tube. The tighter tolerance for plate current can be achieved with simply better adjustment of the tubes, before putting them in the glass bulb.


In that was sure Telefunken. This will lead unavoidably to a wider spread in tube parameters. So if parameters of a lot are the same, the higher expectations you can have to the base quality of that lot.

They throw nothing away. Others pick out the higher DC current values as if those are better, and if somebody has a Hickok tester, he’ll pick out those with higher transconductance as that’s all he can see.

TDSL Tube data [6P14P (6П14П)]

Also vice versa, this applies. It was never before available for commercial use. So when you find 6 random tubes to be very strong, BUT they are all totally different, this is good, but not ideal.

In terms of quality, there is one very important observation I made many times before. Perhaps not many of the readers had the chance to compare lots pcs original packed NOS tubes with each other, or compare such lots with pcs of new made tubes. WIth the tubes comes a four page original printed data sheet, listing in full detail the excellent specifications of this tube, in Russian.


Matching in pairs or quads in included in the price. The standard EL84 has actually not a very high lifetime, it can be microphonic, and is produced with an almost unacceptable wide range of plate current. This tube used to be very expensive when it was made! So I make a distribution, and then I see immediately of some values are missing. Then you end up with tubes that have lower parameters for everyting. This picking makes little sense, but it does get a problem when stocks have been picked from multiple times.

So I take from tubes randomly 6 tubes. After hours they begin to wear out, and they are worth not much any more.

6P14P-EV = EL84 = 7189 = 6BQ5 tube. Output pentode

So whatever the situation, I prefer such lots that have not been picked from. Actually it makes little sense, but some people pick out the center values, as if those are better.

NOS stocks of this tube have been released for public sales only recently, and stocks are low. Only differences are listed here when identical, it is not listed.

With standard EL84, plate current ranges from an estimated 30mA to 90mA. If tubes 6pp14p a lot appear all identical, this promises best quality.

Datashheet lot may have lower lifetime, and problem rate is highter. These low cost materials produce contaminating residues when the tube gets older.