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Stereo
Single End Amplifier
for Horn Speakers and Headphone Application |
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Stereo hifi power stage especially developed for low cost tube amps
and headphones application. The output transformer A-184 KH has
in standard taps for
4 Ohms and 8 Ohms. According to customers need, the tap for the
headphones can be made for 32 Ohms up to 600 Ohms, or any impendance
on request. The specially constructed transformer NTR-16 has plenty
of reserves which will guarantee low stray field and low temperature
in operation. The stabilized high voltage power supply with additional
choke filtering and the DC heating ensures very low hum and noise.
This is very important if it is used with high efficient horn systems
or headphones.
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| Output
power |
4.5
W
(Clipping) |
| Harmonic
distortion @ 1 dB below full output power |
0.23 % (2nd harmonic= 0.16 %)
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| Frequency
response |
20 Hz
(-0.2 dB).....20kHz (0 dB)
<20 Hz....45 kHz (-3 dB) |
| Noise |
-75
dBV (= 170 µV) |
| Noise
A-weighted |
-78
dBV(A) (= 120 µV) |
| Input
sensitivity |
0.4
V |
| Output
impedances |
4 Ohms,
8 Ohms and for headphones 32 Ohms up to 600 Ohms or impedance
as requested |
| Tubes |
2 x
ECC 81,
2 x EL 84 |
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Kit
€ / P. |
| Complete kit without case |
|
700.–– |
| Transformers
: NTR-16,
A-184 KH |
| With
the kits are coming circuit diagrams, data sheets, aplication
hints and more. The construction is simple and all the parts
find place on three circuit boards: amplifier, DC heating and
high voltage power supply. |
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