วันอังคารที่ 10 พฤศจิกายน พ.ศ. 2558

Frog Sounds Ham Radio QRP Kit Telegraph CW Transceiver Receiver

Completed with Frog Sounds Ham Radio QRP Kit Telegraph CW Transceiver Receiver Radio Station V3 40 Meters.

Cover Design : KF1I

Test Check :
Please take out U2 , U3 and U4 before.
1. U1 Leg Out is 6 Volts.
2. U1 Leg In is 10 Volts.
3. Leg 8 on U2 is 6 Volts.
4. Leg 14 on U4 is 6 Volts.
5. Leg 6 on U3 is 9 Volts.
6. L4 is a high-frequency choke on FT37-43 ferrite bead (Black) 0.51 mm. enameled wire around 11 turns. approximately 20 cm. (20uH)
7. L5 is a high-frequency filter inductor 0.51 mm enameled wire or mesh wire wound on a magnetic iron core T37-2 (red) , 16 turns , about 25 cm. (1uH)
8. used with battery 9 Volts is better.
9. Solder start from Resister , Capacitor Ceramic , Capacitor electrolytic , Diode , crystal , transistor , IC
Credit : E20MIO
Special Thanks : E20MIO , E29THF , E22RBV , HS8JYX , HS1JQP and Homebrew Thailand friend.

Photo also show from start on check list of equipment , solder and completed on box.

Photo Also show after construction completed.


Photo Also show before construction.

Photo Also show resister and socket completed on PCB.

Photo Also show resister , socket and Capacitor completed on PCB.

Photo Also show all completed on PCB.


*** Homebrew Ham Toy , It's not rocket science. ***

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