I have attempted to redraw the schematic, which is attached.
In addition, I am thinking of experimenting with the circuit, and have some questions.
1. Is 1/4 watt, 5% suitable for all resistors?
2. Which three capacitors are film caps, C1, C3, and C4?
3. Why are there two options for C4? What is different in Europe and Australia, deviation?
4. Is the value of C12 critical? Would 33 pF work as well?
5. The antenna is shown as 30". Is that for the center of the FM band?
6. Would the circuit work on 12-15 V instead of 9 V, and would that increase the output power?
7. I am licensed to transmit on 147 MHz. What would have to change to move the tuning range to include that frequency?
8. If I used a separate antenna connected with coax, would 52 Ω be appropriate?
9. Do you see any errors in the attached schematic?
Thanks.
In addition, I am thinking of experimenting with the circuit, and have some questions.
1. Is 1/4 watt, 5% suitable for all resistors?
2. Which three capacitors are film caps, C1, C3, and C4?
3. Why are there two options for C4? What is different in Europe and Australia, deviation?
4. Is the value of C12 critical? Would 33 pF work as well?
5. The antenna is shown as 30". Is that for the center of the FM band?
6. Would the circuit work on 12-15 V instead of 9 V, and would that increase the output power?
7. I am licensed to transmit on 147 MHz. What would have to change to move the tuning range to include that frequency?
8. If I used a separate antenna connected with coax, would 52 Ω be appropriate?
9. Do you see any errors in the attached schematic?
Thanks.
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