6n2 (parallel) push 6p13p Class A single-ended power amplifier.
The machine adopts tube rectification and shed method. The front stage 6n2 is a side-heated oxide cathode triode. It is a commonly used tube for tube amplifiers. Whether it is a front stage or a merger, it has a good sound effect.
The front stage of the machine 6n2 uses parallel mode, 6n2 is used in parallel, the internal resistance of the tube is reduced by half, the current thrust is doubled, the low-frequency sound is deep and powerful, and the mid-frequency is full. High frequencies are in place. The female voice is naturally cut, warm and soft, and the sound is very sweet.
This machine's power tube uses 6p13 side-heated oxide cathode beam tetrode. The main purpose is to do wide-band power amplification.
The main parameters of the tube:
Anode voltage: 200v up to 450v
Filament current: 1.45a.
Anode dissipation power: 14w
It can be seen from the parameters that the current is 1.5a less than the el34 filament current, and the performance can surpass that of the el34 machine.
6n2 push 6p13p tube power amplifier performance parameters are as follows:
Output power: 5.4w + 5.4w
Output impedance: 8 ohms (4 ohm wires are left in the machine)
Frequency response: 40hz-20khz
Input impedance: 100k
Signal to noise ratio: 89db
Input sensitivity: 500mv-2000mv
Harmonic distortion: 3%
Machine volume:
260mm wide 230mm deep 170mm high
Tubes for tube amplifiers:
Rectifier tube: 5z2pX1 (replacement tube has 5z4p 5u4c 5z4pa etc.)
Pre-stage electron tube: 6N2X2 (replacement electron tube has Soviet Union 6h2n 6n1 6h1n)
Back-end electron tube: 6p13pX2
In view of the small output power of the machine, it is recommended that the speaker selection parameters are as follows:
1: The machine is suitable for 15 to 60w. Sensitivity must be above 89db, 90db is better and easier to push (such as 89db ± 3db)
2: Speaker caliber: 2 inch to 8 inch full frequency or 2 frequency division is fine.
3: The speaker impedance is suitable, 4-5-6-8 ohms can be used.
The default voltage of the machine is indicated as follows: This machine is shipped by default from the mains 220v transformer. If the voltage is higher in special areas, it is indicated that the 230v transformer needs to be changed separately. The 110v transformer is individually customized and takes about 3 days. The 240v transformer in some parts of Europe and America also needs to be individually customized.
Rectifier electronic tube: 5z2pX1 (replaceable electronic tubes include 5z4p, 5u4c, 5z4pa, etc.)
Front stage electronic tube: 6N2X2 (replacement tubes include Soviet Union 6h2n 6n1 6h1n), 2 small ones
Post stage electronic tube: 6p13pX2 (replacement tubes include Soviet 6n13n 6n13c) with a cap
Baby night scene picture is as follows:
