Somehow, having looked to the neighbor in garage, I noticed among the diverse chaos and disorder two radios from the WEF series,
which casually lay on a rack, and a little further away - a Chinese cassette car radio.
I repaired all these units more than once in the old times. A couple of Chinese people can still be found in my trash, but they did not have the opportunity to have a WEF in personal use. I asked the owner why the equipment in the garage was lying around and joyfully heard that it was with the rest of the trash waiting for the removal to the dump in the near future. When asked if I could pick up these radios, he answered indifferently so that I would pick up two more televisions and a radio in the far corner of the garage. Having promised a neighbor that soon music would play in his garage, he distributed a rich crop of packages and headed for a quick walk home. Dear, he reproached himself a little, calling him “Plyushkin” with the insatiable and envious eyes of a radio amateur - he again got a job.
House made a thorough audit:
1. "VEF-202" - the external and internal condition is satisfactory, even shows signs of life - will be mine.
2. "VEF - 206" - deplorable state,
no back cover, no magnetic antenna, crack on the board. Well, we throw out the excess and re-equip it into one band FM radio receiver.
We are reanimating the board from the Chinese car radio, the backlight of the scale will be made LED,
inside the case we install a low-power network power supply with a stabilized output of 12 volts.
In the early morning, a neighbor came running with a screwdriver - he completely stopped working, I can take it up to remake it to work from 220 volts.
We went to the garage, removed the power transformer from the color tube TV,
at the same time they grabbed a sound transformer.
A rectifier block from a car generator hung over a workbench - and it was in a heap.
The rectifier assembly for the oscillator was made using diodes D 104 - 25, withstanding an operating current of up to twenty, more than one, amperes and voltage up to 100 volts. The neighbor screwdriver worked from 12 volts, and on the power transformer there were two powerful filament windings of 6.3 volts each.
I connected them in series, connected a car rectifier unit to them according to the classic bridge circuit, for courage I connected an electrolytic capacitor of 500 microfarads, 25 volts. I soldered the power leads to the computer network connector "dad",
and the connector is "mother"
with power cord
connected to the housing from the battery pack of a screwdriver.
Now you can not worry about the accidental polarity reversal of the power supply of the screwdriver. The transformer, diode bridge and capacitor are located in a suitable housing,
In the battery case, through the quenching resistance, I installed a backlight on the LED.
Testing the new power supply was successful, increasing my credibility in the eyes of a neighbor.
I will not describe in detail all the manipulations with the VEF-206 corps. The power supply was built from a sound transformer according to a scheme common among radio amateurs. In the circuit board of the car radio, I replaced the sound microcircuit, the LEDs on the backlight of the radio scale fed from the car radio board, fortunately, there were already special conclusions for powering the LEDs of the radio itself. The jammer wheel was carefully removed from the KPI of the radio and through the adapter sleeve connected to the KPI of the car radio board. The antenna was used by the native, from "VEF - 206". At the presentation, the neighbor felt sympathy, dragged a bottle of excellent moonshine with salted bacon, onion and rye crust of bread.
To the music of FM radio station "Autoradio"
we all capitalized and parted as bosom friends. And my VEF-202 will also wait for its exit from non-existence, winter evenings are long.
P.S.
The other day, a neighbor suggested repeating gatherings
and there was a reason - there was a back cover from the radio.
I politely refused, provided the neighbor with bolts for the lid, and on that parted.
