fully functional in the prototyping stage.
DISCLAIMER
I place the material for informational and didactic purposes, you are personally responsible for any malfunction or misuse.
Have fun and a lot of satisfaction.
SwitAc
Connecting the device to the power grid at any time is certainly a bad idea, for example: "exploding bulbs".
[Strong shock currents = magnetic pulses ] Serious danger to our health.
ATTENTION - VOLTAGE OF THE POWER GRID
Description of the operation of the synchronizer: Let's imagine that, we connect our receiver to the grid,
but on the way is SwitAc
It will pass the grid voltage only at the moment when the phase of this voltage changes to the opposite.
download: switAc.zip
It was a long time ago and I fondly remember those days, free radio was simply to be experienced.
Low power FM transmitter is simplicity, while the stereo coder is quite another matter, unfortunately
the quality was poor.
The prototype below is a completely different league.
<--- look video - composite output signal + 19khz remote control
download:fmmod.zip
Unfortunately, the project did not live to see the implementation in hardware. Maybe someday? Code is
written for GAL22V10.
Analyzed and compiled in Xpla Profesional 3.30, interpreter is ABEL. The matrix contains 2 synchronous
decade counters + control pins .I heartily recommend .
download: source+jed Dcounter.zip
Needed a motor for turntable + drive belt, Can be ordered in the UK, but I have an aversion to synchronous
on 220v. I was interested in VCR-head from a videocassette recorder, a little low power, but ok.
Mechanic's precision ok. Direction of rotation - that is changed on Hall's sensors.
Speed - here we have 2 possibilities, but it's DC. Feedback - taken from the printed coil under the stator's winding .
The controller meets expectations, the analog section also ( but it could be better ).:)
download: : LFDual_PLL.zip