Ohhh....SORRY!
Those should not be +5 and -5 at all. You have proper voltages already. Don't worry!
Like many times in the past, i am using only available symbols in ExpressPCB. There are only standard +5,+9 and +12 as well as -5,-9 and -12 symbols for power paths.
That's why i used +5 and -5 and later forgot to delete "5".
Dont bug your self trying to achieve those voltages, you will not.
For a moment focus only to TX stage.
Proper choice of transistor there is critical.
I planned BC327 (2x) and BC337 for TX stage. But even those must be pretty simillar in hFe.
Change transistors there until you get oscillations.
Also look here for previous Max's post about coil&tx stage issues.
Max found out that oscillator will not run if coil exceed some resistive values. This is mostly due fact that we still dont know which one is main transistor in TX.
I never payed attention on that cose i do have original RH coil...
Those should not be +5 and -5 at all. You have proper voltages already. Don't worry!
Like many times in the past, i am using only available symbols in ExpressPCB. There are only standard +5,+9 and +12 as well as -5,-9 and -12 symbols for power paths.
That's why i used +5 and -5 and later forgot to delete "5".
Dont bug your self trying to achieve those voltages, you will not.
For a moment focus only to TX stage.
Proper choice of transistor there is critical.
I planned BC327 (2x) and BC337 for TX stage. But even those must be pretty simillar in hFe.
Change transistors there until you get oscillations.
Also look here for previous Max's post about coil&tx stage issues.
Max found out that oscillator will not run if coil exceed some resistive values. This is mostly due fact that we still dont know which one is main transistor in TX.
I never payed attention on that cose i do have original RH coil...
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