As you know i am in South America... despite we are not too much delayed
I have to explain you dear Nordic, to inform you the differences we have, related development, compared to other more modern countries, we use shops to buy those things....of course... i am talking about Brasil...and i could perceive those things are changing and fast.
And even the bigger ones, the big shops, have not complete line of chips.
The transistorized option, even beeing worst, is an option to us that have not the easy way to buy those things.
We cannot order by mail.... in my place customs block those things saying it is an imported good subjected to taxation... sometimes they block and ask your presence into the Mail department..sometimes your parts just disappear without left track.
So...we do not use internet to order things, in such a confortable way., sitted in front our computer.. we move our.... our..... our bodies to downtown... we spend gasoline (4 bucks!), we pay parking place (one more buck!), we walk as a hell, we go to the streets were the electronic shops are... we enter strips...we ask for the unit and the salesman answer you.
- "UPC we have 1221 and 1225...but we do not have the one you ask...i will take note of that and soon (6 monthes of new importation period of time...and if the shop owner perceive many folks asking for the same part number) we will have that part for you."
To assemble with transistors we can do those things easier... i am also searching for a complete schematic..but i want off set sensor.. also o would like to adjust the time delay to enter the speaker... would like to have monitoring leds to show me the circuit operation and so on.
I do not know, exactly, what happens in Argentina...but as we are neighboors...it is possible that happens the same way.
regards,
Carlos