Radio Lidia-80 do it yourself

On the agenda - radio Lydia-80. This direct conversion receiver is very popular on the Internet. It works in the 80 m range, but there is a 40 m version. Differences in the input circuits. Its design is so simple that it is used for commercial purposes in the form of designers for self-assembly. But with its simplicity, it is very good. So it was my turn to collect it. Having bought all the necessary assembly began.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

Housing according to the tradition of plywood. For the connection was used cutter angular merging. It allows you to join the workpieces at an angle of 90 degrees, and thanks to the larger bonding surface, the connection is stronger. For fixing the "muzzle" I used brass mortise nuts, mounted on glue for confidence.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

The back cover was originally cut a little larger, and after gluing it was processed by an overrun frezer. This allows us not to measure the dimensions of the part, but to adjust it to the size of the case.Very comfortably. Two layers of acrylic lacquer and box ready.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

Two holes for the antenna and power.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

Receiver board
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

The muzzle is made of PCB. After cutting all the holes, the copper was polished and varnished.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

To measure the tuning frequency, I used a Chinese frequency meter. It measures in the range of 0.1-65 MHz. Eats from 12 V.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

Here is the face in the collection. As the light filter used film for the printer with the applied toner. The compact speaker was taken from a non-working receiver. Ideally, you need to use a multi-turn resistor to tune to the frequency. I had a couple of such resistors, but they turned out to be of poor quality. The contact inside was bad and because of this the frequency was constantly jumping. I had to use a conventional resistor, and the smoothness of the settings was compensated by increasing the handle.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

The board is installed brass stoics.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

This is the internal assembly of the already assembled receiver.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

And that's all in the collection. The received frequencies are from 3.6 to 3.76 MHz. This corresponds to the voice segment of the 80 m range. In addition to the volume and frequency, there is an adjustment of the antenna signal level. As an antenna, the wire lowered from the fifth floor to the first level.City conditions are far from ideal for reception in the HF range, but nevertheless, the receiver showed itself well. An example of work in the video.
Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

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Radio Lidia-80 do-it-yourself receiver, frequency, tuning, range, made, quality, community, Board, allows, level, antenna, looks, used, assembled, size, quite, used, brass, use, receiver

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