I greet all fans of the extremely low distortion. Beautiful measurement Mosfet amp, 5 pairs IRFP240/9240
Here is the measurement Mosfet amp, 5 pairs IRFP240/9240
You are showing measurements of the generator. All the measurements are here:
perys | perys - hqqf_spektra ? rajce.net
And these are amplifier measurements:
http://img7.rajce.idnes.cz/d0703/5/...qf-1to5_1.1W_1kHz-bench_Ynotone-Gtone-dif.jpg
http://img7.rajce.idnes.cz/d0703/5/...1to5_15W_13w14kHz-bench_Ynotone-Gtone-dif.jpg
http://img7.rajce.idnes.cz/d0703/5/...qqf-1to5_15W_1kHz-bench_Ynotone-Gtone-dif.jpg
http://img7.rajce.idnes.cz/d0703/5/...1to5_30W_13w14kHz-bench_Ynotone-Gtone-dif.jpg
http://img7.rajce.idnes.cz/d0703/5/...qqf-1to5_30W_1kHz-bench_Ynotone-Gtone-dif.jpg
"Original HQQF" - not Perys modification :
10kHz, 8 ohm load, limitation.
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/10kHz_limit.jpg
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/10kHz_hard_limit.jpg
20kHz, 8 ohm load
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_under_limit_stor.jpg
and limitation
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_over_1dB.jpg
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_over_2dB.jpg
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_over_3dB.jpg
So much joy and fun and only 340 €
10kHz, 8 ohm load, limitation.
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/10kHz_limit.jpg
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/10kHz_hard_limit.jpg
20kHz, 8 ohm load
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_under_limit_stor.jpg
and limitation
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_over_1dB.jpg
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_over_2dB.jpg
http://www.valachnet.cz/lvanek/hqqf_torture/sinus_left4/20kHz_over_3dB.jpg
So much joy and fun and only 340 €
Last edited:
Sendy:
You do silly measure, why? You must first set the operating point. I already wrote to you, you still do not understand? Measurements should look like this
You do silly measure, why? You must first set the operating point. I already wrote to you, you still do not understand? Measurements should look like this
They speak only empty words.
120Vpp/4Ω
Probe 1:1 Minimum sensitivity of the oscilloscope 5V/div
Other measurements:
Measuring amplifiers HQQF-55-506W-5-1, a small impedance
500mΩ
Measuring up to 200mΩ
Measuring amplifiers HQQF-55-506W-5-1, a small impedance
500mΩ
Measuring up to 200mΩ
What about IMD and THD vs. frequency, THD vs. level ?
No answer, as usual?
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