Old Deng is reborn in the 1980s, and he starts by severing his father-son relationship!

Zhao Yong's face stiffened. Last night, he only focused on checking the high-voltage part and didn't pay attention to the potentiometer at all, and even forgot about the phase compensation adjustment function of the rectifier.

Chen Deshun said no more, gripped the knob with one hand, and stared at the oscilloscope connected to the rectifier output, slowly making a counter-clockwise adjustment.

With each slight rotation, the waveform on the oscilloscope, which was originally jumping wildly like a tangled mess, attenuated in amplitude, and the chaotic ripples gradually became more orderly.

After rotating about 120 degrees, the waveform was about to stabilize completely when he suddenly stopped and rotated it clockwise about 30 degrees.

"Whether it's a new type of tape recorder or an old product, it needs to be stable in static output, but it also needs to be able to handle transient load changes when turning on and off and tuning stations. We can't just focus on making the static waveform look good; there has to be a compromise between steady-state and transient output."

He seemed to be talking to himself, then turned to Liu Jun and gestured with his chin: "Power on and test the machine."

Liu Jun quickly responded and went to turn on the power switch.

A low, steady buzzing sound followed, the previous noises during startup were gone.

On the panel, the red power indicator light first lit up, and in an instant, the green "output normal" indicator light lit up steadily and stopped flashing.

All eyes turned to the oscilloscope. On the screen, the waveform line that had been jumping around like a spasm quickly converged into a smooth straight line after only a few weak damped oscillations, with only very subtle and regular ripple fluctuations, which perfectly met the output requirements of the tape recorder for DC power.

The workshop was initially deathly silent; even the hum of the machines seemed to have faded away.

A moment later, a hushed, incredulous murmur arose: "It's done! Master Chen really got it sorted out!"

"So that's where the problem was! I thought it was with the capacitor!"

"Master Chen has an amazing eye; I definitely wouldn't have noticed!"

Zhao Yong stood there, his face turning red and white in turns. He looked at the stable waveform on the oscilloscope, his lips moved, but in the end he couldn't say a word.

He had been working on a difficult problem all night, but Chen Deshun found the crux of the matter in just a few minutes and cured it. Moreover, the problems he pointed out were all the core issues that he had overlooked. At this moment, all his explanations seemed pale and powerless.

The workshop foreman's face lit up with joy. He stepped forward and patted Chen Deshun on the shoulder: "Old foxes are indeed shrewd! I'll explain the debugging method you just used to everyone later, and we need to quickly overcome the power supply debugging problem for this batch of new machines!"

Power supply debugging is only one of the challenges. To develop a radio that outperforms all other products on the market, stereo decoding and audio processing, tape drive and recording technology, and even heat dissipation and shock resistance design all need to be upgraded.

"Master Zhao, working overtime and staying up all night won't help if you're going in the wrong direction."

"To do it well, you have to understand the components first. The rectifier is made in Germany. Their design philosophy is different from ours. They prefer to design the key functions in less conspicuous places."

Chen Deshun acted as if he had done something insignificant, casually turning off the power and picking up his toolbox to walk towards the workbench on the other side.

Zhao Yong stood there dumbfounded, his face displaying a variety of expressions.

The morning passed quickly.

As lunch break approached, Chen Deshun went to the workshop director to ask for leave and to complete yesterday's leave slip.

When the workshop director learned that Chen Deshun was going to ask for leave again, he frowned. He had asked for half a day the day before yesterday, a whole day yesterday, and now he was going to ask for half a day again?

"Old Chen, I know your family situation is complicated, but at this critical juncture, you still need to be careful about the impact." He tapped the table, speaking very tactfully.

Chen Deshun is a long-time employee of the factory. Although he took leave, he did not fall behind in his work. In particular, he was helped to solve a big problem this morning, which made him feel proud and comfortable. But one thing is one thing, and he still needs to be reminded.

Chen Deshun understood the workshop director's good intentions and nodded with a smile: "Don't worry, Director, I know what I'm doing."

"Just keep it in mind."

After taking leave, Chen Deshun did not go straight home, but went to the savings bank instead.

He took out the passbook he had gotten from Chen Jianguo from his pocket and handed it to the female clerk at the counter.

"Comrade, withdraw the money, withdraw it all."

The female employee took the passbook and looked at the number on it. She glanced at Chen Deshun a couple more times. These days, being able to save more than a thousand dollars was not something an ordinary family could do.

The female employee did not directly help Chen Deshun withdraw the money. Instead, she began to ask him many questions, such as the purpose of the withdrawal and the source of the money. Chen Deshun had to take out his work ID and household registration book before the procedure was completed. The female employee then handed out a stack of "big unity" bills from the window.

At 12:30 pm, Chen Deshun leisurely returned home with a huge sum of more than 1,300 yuan in his pocket.

There are still two and a half hours until the agreed time of 3 o'clock.

As soon as he entered the house, he saw the elderly couple helping him tidy up the house, sweeping the floor and wiping the table.

"Dad, Mom, don't sweep anymore, I'll clean up when we get back. Come on, let's go out to eat."

As Chen Deshun spoke, he put away the rag on the table and the broom by the wall.

Upon hearing this, the old man quickly waved his hand: "Why go out to a restaurant? Why waste money like that? We have food at home. We can just eat whatever we need."

Grandma Shen chimed in, "That's right, don't get cocky just because you have a little money. You still have to be frugal."

Chen Deshun smiled, didn't argue, and simply pulled the elderly couple out.

Money is a bastard; you can earn it back after you spend it.

The elderly couple couldn't resist him, so he reluctantly led them out the door.

The three arrived at the state-run restaurant, which was bustling with noise during mealtime.

Chen Deshun helped the elderly couple find an empty table to sit down, while he went to the waiter to order: "Comrade, braised sea cucumber, crispy chicken, Kung Pao shrimp, and three bowls of rice."

In the past, these dishes were considered a luxury, let alone eating them.

The waiters were taken aback. Sure enough, appearances can be deceiving; this person was dressed plainly, but he seemed quite wealthy.

The dishes were served quickly, and they smelled delicious.

The elderly couple stared wide-eyed at the sumptuous dishes on the table; they had never tasted anything so good in their lives.

Chen Deshun served food to the two elders, feeling a sense of satisfaction.

Although the elderly couple complained about the meal, they ate with gusto.

Since it was still early after dinner, Chen Deshun took the elderly couple shopping at the department store.

Chen Deshun bought a few feet of trendy cardigan fabric for Grandma Shen and a women's collared coat with cardigan. Originally, Chen Deshun wanted to buy a lining and pants, but the coat alone cost twenty-seven yuan, which made the old lady very upset, and she refused to buy it no matter what.

The old man wasn't picky about anything, but only bought a pair of Neiliansheng thousand-layer cloth shoes at Chen Deshun's insistence. These shoes were comfortable to wear and didn't rub his feet.

The old man said it was a waste of money, but after taking a couple of steps in the new shoes, his face broke into a wide smile.

Passing by a grocery store, Chen Deshun went in and did a quick browse.

The elderly couple packed several large bags with pastry boxes, White Rabbit milk candies, and animal-shaped cookies, so they could share them with their children when they returned home.

The elderly couple watched their son spend money like water, their hearts aching with heartache, yet they felt an unprecedented sense of peace and warmth.

At 3 p.m., Chen Deshun and his wife arrived at the police station on time.

As soon as I arrived at the door, I saw a familiar figure peeking out.