General Category > For Sale / Wanted / Barter
LuLu Style Tx's 10W carrier, 40W Peak, with Modulator, Mod Tranny + 6925 XTAL
Stretchyman:
Final price reduction, I can't sell them any cheaper!
Have a few left.
$200 all in Inc postage.
Str.
digitalmod:
FCC loves strong signals on same frequency at a working hour clock schedule. 8)
SWL skill comes from really working for that catch. :o
Anybody can pull in 250kw and 20 db curtain antennas jobs. I am fascinated by WW2 and those little code key sardine boxes where if you were caught, you were SHOT!
digitalmod:
LuLu is very low power and FMs badly.
But, I assume one could remove crystal and install a suitable DDS.
The very low power really is a toy, but if modulator is clean , can be used for linear amp to perhaps 300 watts. The caution is, AB linear amps are only on average about 33 percent efficiency. So, obviously if you are using AM the pep will be 4 x carrier. The linear needs have balls to do 4 x carrier without becoming flat toped out.
The little rig I have FMs is useless really without a DDS, and could in principle be used to drive a linear to a practical, maybe 100-200 watts. :P
ChrisSmolinski:
--- Quote from: digitalmod on March 17, 2018, 1349 UTC ---LuLu is very low power and FMs badly.
But, I assume one could remove crystal and install a suitable DDS.
The very low power really is a toy, but if modulator is clean , can be used for linear amp to perhaps 300 watts. The caution is, AB linear amps are only on average about 33 percent efficiency. So, obviously if you are using AM the pep will be 4 x carrier. The linear needs have balls to do 4 x carrier without becoming flat toped out.
The little rig I have FMs is useless really without a DDS, and could in principle be used to drive a linear to a practical, maybe 100-200 watts. :P
--- End quote ---
Perhaps some voltage regulation on the oscillator stage would reduce the FMing?
Stretchyman:
It's regulated, obviously!
Digiplod can build his own!
Str.
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