LAMP SSB CW TRx " ALBATROS " 80 And 40 M
And so .... we are doing a retro tube .. back to the future !
Complete transceiver
Source code here http://www.radiolamp.ru/shem1/pages/203/ . In the course of work, the scheme will be changed and
redesigned.
Let's start with the transformer. Take the TC-180 and rewind the secondary windings. You can use it and the
original, but then there will have to rewind, so it is better to do what you need and everything is OK. Negative voltage, too,
will be thrown out with a diode bridge, as it should be. Less will be problems with the background 50Hz.
The most difficult to get ceramic palekki under the lamps. But the one who is looking for will always find .... The location
of the parts on the chassis becomes clearer.
.
Coil for the local oscillator, from some kind of radio station.
For the mechanical scale used a small gear and other mechanics from the German VHF receiver. Everything was very
good.
The transceiver " face " is strewn
Relyushki already " clicks ", management works. The device comes to life a little bit.
On the front panel, everything already has what should be. Work further.
In the " cold " way I tried to configure the user agent on the GI-30, ... everything is fine.
So begins the " web " in the basement ...
Like all. Further setup is waiting.
So cluttered with notes, changes scheme of the original. And this is not the end. The complete scheme with amendments
will be when everything is finished.
Almost assembled transceiver. I had to replace several electrolytes. I did not check when I put it, but they almost without
capacity. I replaced the ULF lamp with 6F5P. Now the volume is even too much. Another residual 50 Hz. On nutrition and
heat does not disappear. It will be interesting to look for where it crawls through .
6p5p ULF circuit
Already looks like a transceiver ....
Scale painted with the program SPLAN v.6
The tune goes to the end. Rule first QSO. GI-30 freely gives 100 watts to the equivalent. For CW, I use a separate quartz
at 501 KHz.
For the full return of the RF signal on the driver, I had to put a separate variable capacitor (one section) for
adjustment. Now at any point in the range we get the same power.
Additional condik to tweak the driver.
500 KHz circuit on SB -12A Single- conductor wire 500 KHz circuit on the frame three sections and wound with litsendrat
Replaced the circuit at 500 kHz. Wound on the frames from the radio. In three sections and matal litsendratom. The
result can be seen on the charts with NWT-7 . The resonance became pronounced, the quality of the circuit jumped more
than Q 100. The parameters of the transceiver became better.
Frame for 500 K Hz
DIGITAL SCALE FOR " ALBATROS "
Made a small number. scale. All learned OK. The scale has its own menu. Directly from the transceiver can be recorded
intermediate frequency. Scale applied from the site :
http://www.qsl.net/dl4yhf/freq_counter/freq_counter.html
All well shielded, scale and shaper miandra vfo . There is no interference. On the author's website everything is fully
described.
Main Board Display Board
I have a LCD with a common cathode. It is possible with the common anode, but then you have to do something a little
changed on the diagram and write another program into the PIC. The size turned out very small. 36x26 mm.
Collected fee
Both boards
Here's a " sandwich " next to the box of matches already working ...
mounted on the front panel Scale in the screen
General view without false panel Shaper Miandra VFO
The driver must be collected near the VFO. The signal from the VFO is fed to C1. The formed VFO signal (miandra) is
removed from the T2 collector and fed directly to the scale by a coking cable. The scale works stably.
LayOut'te board: Plokste.lay
LCD board : LCD.lay
Program for PIC16F628A: Skale.hex
80m recording (With phone) : 80m MP3
WORK CONTINUES, CONTINUES TO FOLLOW ....
LY2BOK Justinas .
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