for AM radio receiver, i want to use 2 transistors as darlington, and then i use amplifier to drive speaker....i want to ask that...when i use simple 1 npn transistor, i use 100k ohms resistor to bias with collector-base......what bias resistor should i use if im using 2 transistor as darlington??? , if i use 3 transistors as darlington??? if i use 4 , if i use 5???
if i have to make transistor radio...could you just please tell me where i have to put tank coil (emitter, base or collector) and where i have to put feedback coil??? is the areal wire you have shown with 4 turns, the same called feedback coil??? what is the function of feedback coil and where it is plased in transistor please help me...dont discuss amplifier, i want to know about the first circuit,amplification comes next stage...please help.
I haven't drawn a schematic yet, but you will find a lot of regenerative designs out there that you can use for inspiration, just search for 1-transistor regen etc. try many search combinations and you'll find one eventually.
Parabéns colega, gosto muito de regenerativos....
fabinhoosmar 2 months ago
Interesting
terrinakamura 4 months ago
for AM radio receiver, i want to use 2 transistors as darlington, and then i use amplifier to drive speaker....i want to ask that...when i use simple 1 npn transistor, i use 100k ohms resistor to bias with collector-base......what bias resistor should i use if im using 2 transistor as darlington??? , if i use 3 transistors as darlington??? if i use 4 , if i use 5???
tiputipu0052 1 year ago
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if i have to make transistor radio...could you just please tell me where i have to put tank coil (emitter, base or collector) and where i have to put feedback coil??? is the areal wire you have shown with 4 turns, the same called feedback coil??? what is the function of feedback coil and where it is plased in transistor please help me...dont discuss amplifier, i want to know about the first circuit,amplification comes next stage...please help.
tiputipu0052 1 year ago
1:09..What did you intercept the Russian Space Administration or something? lol
UberWagen 1 year ago
Wow, at 1:09 those are hungarian words! :) Congratulations, nice work!
giganetom 2 years ago 3
@giganetom, cool! Didn't know that, thanks :)
Jo0ngle 2 years ago
Hay, nice work.
I've been trying to build one myself too, with my personal schematics, but i've failed till now.
Could you please let me know the schematics, or at least a place where i can find some of them? ;)
goViSiONgo 2 years ago
Thanks.
I haven't drawn a schematic yet, but you will find a lot of regenerative designs out there that you can use for inspiration, just search for 1-transistor regen etc. try many search combinations and you'll find one eventually.
Jo0ngle 2 years ago