6v6 russian
6L6/5881 tubes
6L6/5881 tubes
More than 70 years in production
6L6 is the designator for a vacuum tube introduced by Radio Corporation of America in July 1936. At the time Philips had already developed and patented powerpentode designs, which were fast replacing power triodes due to their greater efficiency. The beam tetrode design of the 6L6 allowed RCA to circumvent Philips' pentode patent..... more 6L6
6l6GC/5881 DIY SE AMP
Lowther jazz 6L6 SE amp
Fender Super Reverb
Alesa Vaic Vacuum Technology
Today I will introduce one of the best companies engaged in new vacuum tube production.
Company was located in Czech Republic and make various tube types from early 1990 to 2001
Know for 300B,2A3,PX4
Company was located in Czech Republic and make various tube types from early 1990 to 2001
Know for 300B,2A3,PX4
Russian 6C33C and 6C18C
Russian 6C33C and 6C18P
In 1976 a Mig 25 fighter jet landed in Hokkaido in Japan, it was flown
by a soviet military pilot that wanted to defect to the west. This was a
real field day for western miltary people as not so much was known
about the MIG 25 and the plane was completely dismantled.
Two things startled the military analysts in the west, the first was that the plane was built using a lot of high tension steel, it was earlier thought that the MIG 25 was built in Titanium to withstand the heat that is generated by flying at mach 3 that the plane was capable of, that it was built in steel made it heavy so the performance was actually less than expected.
The second thing that surprised people in the west was that electronic tubes was used in some parts of the radio equipment. After a while it was understood that the tubes where used so the plane should be able to withstand EMP. An EMP, (Electro Magnetic Pulse) is generated by the detonation of a large nuclear bomb in the atmosphere, the electric field so generated destroys most solid state electronics and EMP is thought to be used as a possible electronic warfare measure.
In the power supply of the main radio unit of the MIG 25 a previously unknown triode tube was used, the Soviet military designation was 6C33C and it was a voltage regulator triode. The data of this tube was much better than anything made before in the west and SanEi of Japan imported some 6C33C tubes for audio application in 1997, renaming them EC33C for the Japanese consumer. Mr. Dakesue in Japan was the first person to design a 6C33C-B OTL power amplifier circuits in 1977.
The main characteristics of the 6C33C is that it has very high transconductance, high current capability and low internal resistance and also as the tubes where intended for use in miltary aircraft they are mechanically very robust. The nearest western equivalent is 6336 but data of 6C33C is better.
Two things startled the military analysts in the west, the first was that the plane was built using a lot of high tension steel, it was earlier thought that the MIG 25 was built in Titanium to withstand the heat that is generated by flying at mach 3 that the plane was capable of, that it was built in steel made it heavy so the performance was actually less than expected.
The second thing that surprised people in the west was that electronic tubes was used in some parts of the radio equipment. After a while it was understood that the tubes where used so the plane should be able to withstand EMP. An EMP, (Electro Magnetic Pulse) is generated by the detonation of a large nuclear bomb in the atmosphere, the electric field so generated destroys most solid state electronics and EMP is thought to be used as a possible electronic warfare measure.
In the power supply of the main radio unit of the MIG 25 a previously unknown triode tube was used, the Soviet military designation was 6C33C and it was a voltage regulator triode. The data of this tube was much better than anything made before in the west and SanEi of Japan imported some 6C33C tubes for audio application in 1997, renaming them EC33C for the Japanese consumer. Mr. Dakesue in Japan was the first person to design a 6C33C-B OTL power amplifier circuits in 1977.
The main characteristics of the 6C33C is that it has very high transconductance, high current capability and low internal resistance and also as the tubes where intended for use in miltary aircraft they are mechanically very robust. The nearest western equivalent is 6336 but data of 6C33C is better.
Mulard RTC Ecc83
Mulard RTC Ecc83
Mullard long plate blackurn factory branden RTC
ECC83 is a miniature dual triode with high voltagegain. It was developed around 1946 by RCA
2E22 tube
2E22 tube
2E22 is 300B for poor man
Tube type: Transmitting Tube, Pentode, air cooled Power/Output
30W plate dissipation; quick heating filament.
Vf 6.3 Volts / If 1.5 Ampere
Neotron made in France maybe the best sounding 2e22
Tungsol also very good
Aikido diy 2e22 very impressive
Aikido Diy 2e22 SE
RCA 2A3,Sylvania 10Y, Audio note 2A3 kit1
RCA 2A3
10Y-VT25 Sylvania
Audio Note Kit1
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