She was like a precise and efficient machine, giving command with ease.
"Su Xuan, cut this aluminum plate to this size, polish the edges smooth, and drill three holes here."
"Xiao Zhang, wind these enameled wires onto the frame according to the number of turns and spacing on the drawing, and then impregnate them with insulating varnish."
"Xiao Li, use this old oscilloscope, along with the signal generator, to test the characteristic frequency and noise figure of this batch of transistors. Write down the data for me, and be quick."
Her instructions were clear, precise, and without the slightest hesitation. Soon, the warehouse was filled with the sounds of cutting, welding, and the beeping of instruments.
Dust swirled in the beams of light streaming through the dilapidated windows.
Mingzhao moved among the messy parts and equipment, sometimes calculating at his desk, sometimes welding an extremely precise node by hand.
Her movements were fluid and steady, as if she were not piling up a pile of junk, but engaging in a wonderful artistic creation.
Su Xuan and his young assistants went from being full of doubts and clumsy at the beginning to being infected by Ming Zhao's almost divine skills and absolute confidence, and gradually devoted themselves to the task.
Sweat soaked through their work clothes, their faces were covered in grease, but their eyes began to burn with an almost fanatical flame—the power that burst forth when they saw a glimmer of hope in dire straits.
Time flew by amidst the sweat and the fumes of soldering.
Late at night on the sixth day.
The warehouse was brightly lit.
A “monster” with a base made of scrap aluminum plates, various coils, transistors, capacitors and resistors welded together, and covered with messy flying wires lay quietly on the workbench.
It looked ugly and crude, and compared to the sophisticated instruments on Valery's drawings, it was practically industrial junk.
Su Xuan and his assistants stood exhausted around him, their eyes bloodshot and filled with a final glimmer of hope. All the parts were in place; the final adjustments... had begun.
Mingzhao sat in front of the oscilloscope and spectrum analyzer, his slender fingers steadily turning the knobs.
The screen displayed jumbled waveforms, and sharp noises echoed shrilly through the old, connected speakers.
Time ticked by. The waveform on the oscilloscope remained chaotic, and the noise from the speaker showed no signs of abating.
A stifling silence enveloped the warehouse.
The light in the assistants' eyes gradually dimmed.
Su Xuan's heart sank to the bottom, his fists clenched so tightly they turned white.
Could it be... that it really won't work?
Did all their tireless efforts over the past seven days only result in a laughable failure?
Just a second before despair was about to completely engulf everyone,
Mingzhao's fingers turned a fine-tuning knob with extreme subtlety and precision, adjusting it to the last mark.
Sizzle—!
The piercing noise suddenly disappeared!
On the oscilloscope screen, a clear, stable, and powerful sine wave, as strong as a heartbeat, suddenly appeared!
Immediately afterwards, on the spectrum analyzer, the spike representing the main peak of the signal stood firmly at the set center frequency, and the background noise was firmly suppressed to an extremely low level!
It was a success?
Su Xuan and his assistants stared wide-eyed, almost unable to believe what they were seeing!
That hideous monster really did emit a stable and pure signal!
However, before they could cheer, Mingzhao's cool voice rang out, carrying a hint of barely perceptible seriousness: "The enhancement is insufficient. We are still missing a crucial step."
She picked up an inconspicuous little glass bottle on the workbench, which contained some dark red powder.
Amidst the astonished gazes of the crowd, she carefully opened the bottle cap and, using a special tool, picked out an extremely small amount of powder, gently and evenly applying it to an inconspicuous node surface on the circuit board, which was made of a special ceramic substrate.
The moment the powder came into contact with the substrate, it seemed to be activated, emitting an extremely faint, almost invisible dark red halo that vanished in an instant.
"Su Xuan, power it back on." Ming Zhao's voice carried an unquestionable command.
Su Xuan's heart leaped into his throat, and with trembling hands, he switched on the power switch.
Buzz—
The oscilloscope screen suddenly jumped! The amplitude of the previously stable sine wave suddenly soared as if it had been given a stimulant!
It instantly reached the peak value required by the design! The main peak of the signal on the spectrum analyzer became sharper and more prominent, and the signal-to-noise ratio jumped by an astonishing amount, steadily surpassing the theoretical value of the Valery scheme!
boom!
The simple loudspeaker no longer played monotonous waveform tones, but instead played a melody clearly, loudly, and without distortion—"The East Is Red"!
Clear! Loud! Steady as a rock!
"The... East... Red... Sun... Rises..."
This familiar melody, emanating from a pile of "scrap metal," struck like a thunderbolt from the heavens, deeply affecting the hearts of everyone in the warehouse!
It's a success! It's a real success! Using a bunch of domestically made "junk" and a little mysterious powder, they created an amplifier core that outperforms the Soviet design!
Su Xuan and his assistants gaped, their minds blank with immense joy and unbelievable shock. They trembled with excitement, and tears streamed down their faces uncontrollably!
Just then, the old wooden door of the warehouse creaked open.
There were two people standing at the door.
One was Valery, who arrived a day early with a gloomy expression and a look of schadenfreude.
The other one is Yan Zhensheng.
His face showed no joy, only a horrified paleness!
His gaze, as if he had seen a ghost, was fixed on the small glass bottle containing dark red powder in Mingzhao's hand, which he hadn't yet put away!
Yan Zhensheng's lips trembled violently: "What...is in here?"
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