atferrari
Full Member level 4
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- Jun 29, 2004
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I want to implement a receiver to get only the time signal from WWW (10 MHz). Proof of a concept is the goal.
Since it is not the main point in my project I am looking for a "sure fire" circuit not needing more than the usual debugging.
I run across one here: **broken link removed**
My questions:
A) Dual MOSFET 40673 transistors are discontinued ones, not obtainable locally and hard to get (time and $$$$$$$$). Is it any modern one which I could use to replace them in the front end section?.
B) Regarding the ferrite toroids I have in my junkbox: how could I know if any one match the reccomended ones?
C) Is there any reason to use such an elaborate audio amplifier circuit or could it be replaced by something based on a audio amp IC?
D) Can anyone suggest another circuit, similar or SIMPLER, which I could build but "sure fire" granted?
Please do not propose alternatives other than RF receivers. Proof of the concept in play requires it!
(Yes I know that GPS exists. I really know that!) My RF practice is lost in time and have not time nor interest in experimenting. At least not this time.
Thanks for any help. I will certainly appreciate that.
Since it is not the main point in my project I am looking for a "sure fire" circuit not needing more than the usual debugging.
I run across one here: **broken link removed**
My questions:
A) Dual MOSFET 40673 transistors are discontinued ones, not obtainable locally and hard to get (time and $$$$$$$$). Is it any modern one which I could use to replace them in the front end section?.
B) Regarding the ferrite toroids I have in my junkbox: how could I know if any one match the reccomended ones?
C) Is there any reason to use such an elaborate audio amplifier circuit or could it be replaced by something based on a audio amp IC?
D) Can anyone suggest another circuit, similar or SIMPLER, which I could build but "sure fire" granted?
Please do not propose alternatives other than RF receivers. Proof of the concept in play requires it!
(Yes I know that GPS exists. I really know that!) My RF practice is lost in time and have not time nor interest in experimenting. At least not this time.
Thanks for any help. I will certainly appreciate that.
