*  EL3N Single Ended Amplifier D.I.Y

this counter started 21st may 2011

Old Europian Pentodo Philips EL3N

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EL3N power old tubes

There are EL3N old europian Pentodo valuves

el3n philips single ended amplifier

EL3N Pilips Single Ended Amplifier on 21st May 2011

Someone said!!!!.EL3N old europian valuves are ,will be get
4.5W rms pentode single ended, but Triode connection curve is very similar with RCA 45
curve is just same as RCA 45 but sound is very beautiful will be get.this tube is
indirect heating and MFg on 1939 very old tube.he said sounding is sound of direct-heating
tube sound........What do you think? many europian tubes amplifier made up just like
same charactor of PX25,soundding to get.this time try to build up EL3N triode connection
heater is 6.3V and 0.9A needed and same as Pen45 , many person said this is family of Ameican 6V6.
but these europian pentodo's cathode is very fat than 6V6 family.
many DIYer said same family of 6V6 and EL84 of only chatactor.
real is triode connection(wired triode)Ep-Ip charactor is just same kind of
RCA45 and 50.used be use E406N, sound like same as them.small old europian tubes are
many different with new american valves's charactor.triode connection's EP-IP is
very similar of direct heating triode.

Ep-Ip of EL3N

And small signal range of PX25 and EL3N wired triode charactor
are just similar of each other.many person said PX25 is not triodo.is tetrodo.
but these kind of charactor has only AL4,EL3N,EL11( same family)and PEN45,EL33 until power
dissipation of 9W. old small europian pentodo are very good.

so will be get good sounding depend on what kind of audio transformaer using.
This time using Audio Transformer from Noguchi Transformer Kiwame PMF-7WS.
and primary impedance is 7K ohms. probably to get sound next weekend.
so Spec of Philips said Triode connection will be get around 1.1 W rms.
if do you have over 91dB/m/w efficiency speaker enough to use at home.

this tubes got from one of friend in chile. many
years ago. Mr's name is Don Francisco Mella in Chile.

As you knowEuropian old power valuves makes Classic sound good.
and American old power tubes made sound for Jazz good. this word knows evrybody(audiophiles).

How about Sound ?soundding is very clear just like to lesten
Triode Direct heating Europian Single Ended Amplifier.sound is good for classic when use
E88CC and if would like to lesten Jazz Music please use 6N1P is good.
this time using small 7K ohm Audio Transformer so does not get all of charactor of EL3N.
if good big transformer like Hashimoto Transformer will be best for getting good bass.

Sound is very nice,Just like charactor is very similar of E406 Triode single ended amplifier.
E406 is one of famouse direct heating europian Triode as you know.sound charactor is very
similar.sound is good for both Jazz(6N1P) and classic(E88CC) when using each driver.
If would like to build up : Coupling capacitor is use Black Cat.
Black cat capacitor is very clear from low frequency to high range.Mfg is Cornell Dubilier USA.
very nice capacitor but not expensive.expensive one is
Tone Factory Cupper film capacitor.Name is T-CAP[Cu],and many Japanese Audiophile are using as
coupling capacitor.very expensive.but very good one for Audiophiles.
Technic of "Distortion cancellation"

Any single ended amplifierhas driver and driver must be
use some technic of "Distortion of cancellation". if you are using 2 stages single ended
amplifier.driver must be distorted sound.if 2 stages of single ended amplifier does not get
good sound enough, probably driver amplifier has "no distortin" signal.single ended driver
means a half cycle of wave must be distortion singnal.but many good amplification circuit does
does not get distortion.if put out without distortion signal output stage of control grid
generally does not get good sound from your speaker.in generally final of single ended amplifier has
getting distortion signal within a half cycle of full wave.
so what need to do ? I have to make distortion at half cycle of full wave.
this case is , 47K ohm of 6N1P made up distortion signal of a half cycle of sound.
depend on what kind of driver using,different place of componets make half cycle of full wave.
as you know SRPP is very nice driver amplifier but not so good for driver for single ended
amplfier.becasue very diffcult to make distortion signal by srpp amplifier.probably
can make distortion signal by cathode resistance of downer amplifier of srpp.
this EL3N single ended amplifier case is 47K ohms resistance made ditortion signal
depend on value of plate resistance of 6N1P.if does not like sound must be change
value of resistance. some this circuit can be use for any kind of low bias power
driver tubes.for ex europian power pentode and some of American tubes like 6V6,6F6 etc.
if one's using 6N1P or ECC88(6DJ8) for driver, RL is must be adjust for good soundding or
watch distortion meter then adjuste RL value.
we call it's "HIZUMI NO UCHIKESHI" 歪みの打ち消し,and "Distortion cancellation"in english.
circuit is very simple so can be use any power tubes driver.
this EN3N is, made on 1940 by philips.but getting very modern sound from my speaker system.
But depend on quality of Audio Transformer.for me,EL3N Single Ended Amplifier is Best in
this moments.good bass and very clear mid and high frequency ranges.


passing one amplifier means wave form of signal is changed "up-side down" to
out put signal when if using p-K(cathode grounded) amplifier.amplifier make 180(2x3.14)
degree wave signal.single ended amplifier is very impotant caluculate or choose value
of plate resistance of driver for minor distortion.any single ended amplfier to do
this kind of aligment(adjustment).

Note: character are almost same of EL11 and EL3N .some site said almost same Red Line.(painted red surface of valves)
260 V + B and 39 mA ,cathode resistance is 150 when using penthode modo.load is 3.5 K ohm.many case using 3.5 K ohm.
from 3 K.

Black cat

Cornell Dubilier Black Cat

CU T-Cap

High End Capacitor by To-ich denk (East-One Electronics)

well,,,This wired triode single ended amplifier sound is very nice even listen American old Jazz
and europian classic too.
front view of EL3N SE

Front View EL3N Single Ended Amplifier


EL3N Single Ended Amplifier

Circuit Daigram is above for EL3N(triode)Single Ended Amplifier

please see spec for EL3N


2011 June my line up

my line up above,EL3N Philips Single Ended Amplifier is Main


V2 schematic diagram for EL3N SE

No3 Amplifier

small up date of amplifier,good bass and good separation than before

Bypass capacitor conected to cathode of EL3N.result is getting good bass and
good separation than before.sound is very clear snd seems look like triode tube.
sound is just like europian old triode single ended amplifier.this amplifier sound
is very modern amplifier sound.
PX25 DO-30 are Tetrode wired triode inside of valve and these kind of valves
sound very good for Classic and Jazz.EL3N is only 1 W rms under wired triode condition.
but sounding is just like sound of triode valve.

Grid bias is -8V from to -10 V what 's meanning,this circuit can drive EL156 single ended
amplifier too.

I have only one of EL11 Valvo, if I have a spair time I will brew one of mono single ended
amplifier by high end single ended Tango Transformer as soon as possible.please wait for while.

Just Started brew EL11 mono Single Ended Amplifier
EL11 Telefunken

Telefunke EL11 pentodo

This time I will brew Single Triode connection mono Amplifier and using JS-6015H James single ended
Transformer.primary impedance is 7Kohm, very big single ended amplifier use transformer.
very heavy and Max power is 30W.it's will be get around 1.1W rms wired triode connection.
circuit is same as EL3N Single Ended Amplifier.



EL11 Single Ended Mono Amplifier-just started build up on 18th July 2011

4P1L Single Ended Amplifier May 25th 2014


Make Click to Jump 4P1L single amplifier site

Each time using Kiwame Carbon Resistance for Power Supply, very stable components from KOA Japan


If would like to buy Kiwame ,can get from Acoustic Dimension and please see next link.
This link for Kiwame Resistance
can buy in your country.

Still going on  2016, EL3N Single Ended

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Japanese ver 日本語版はこちらです

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Study ValveAmplifier D.I.Y but in Spanishgood for you.old Argentin book.

Single Ender EuropaEDERER EDERER Amplifiers

Vintage circuit from UK about Old Europian Radio'sCircuits

Main Site of VintageRadio and Electronics

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Raspberry Pi B+

Only in JapaneseRadio Boy

Where can you buy EL3N NOS A D NLfrom Europa also can buy Japanese Transformer and components

since 21st May 2011.last up date 24th Mar 2017 from Sakura Chiba Japan

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