YouKits EK-1A Assemble Manual Download Page 2

EK-1A 2014 part list

Name

Description

QTY

Mark

Encoder

1

Volume adjustment

1K with on/off

1

AF/SW

Volume adjustment

1

Q9 mounts

1

ANT

Battery socket

1

BAT

Power jack

1

+V

Headphone jack

2

PHONE

KEY

I-inductance

10uH

1

L8

Electrolytic capacitors

470uF

2

C15, C39

Electrolytic capacitors

100uF

2

C27, C28

IF Transformer

2

T1 T2

Toroid

Black core

1

T3

Magnetic inductance

Red core

2

L1

L2

enamel insulated wire

red

yellow 0.5meter

each

Transistor

2078

1

Q9

LED indicator

5mm red

1

LED

relay

EA2-12

2

K1

resistor

680ohm

1

30

3mm*8 screw black

Secure 2078

1

3mm nut

Secure 2078

1

3mm*5 screw black

Secure enclosure

10

Countersunk head

insulation pad

Secure 2078

1

Insulating particles

Secure 2078

1

Display board

Assembled tested

1

Main board

SMD finished

1

enclosure

1

Summary of Contents for EK-1A

Page 1: ...nd 40m 30m 20m CW QRP transceiver kit is easy to build it has SMD finished by the factory There are 2pcs of PCB the main board and display board To guarantee the building success the display board and...

Page 2: ...rs 100uF 2 C27 C28 IF Transformer 2 T1 T2 Toroid Black core 1 T3 Magnetic inductance Red core 2 L1 L2 enamel insulated wire red yellow 0 5meter each Transistor 2078 1 Q9 LED indicator 5mm red 1 LED re...

Page 3: ...lated wire about 20cm make 10 turns As above T1 transformer is 8 2 please use red enamel insulated wire about 15cm make 8 turns as primary Use yellow enamel insulated wire about 6cm make 2 turns as se...

Page 4: ...9 never install them in wrong direction 2 K1 LED R30 PHONE are all installed at back side of PCB please check below pic 3 After installing all other parts please install the the back cover and secure...

Page 5: ...rator to ANT put generator with a 5uV signal adjust frequency to 7 100Mhz or close to this frequency put EK 1A on same frequency now adjust VC to receive a 700Hz beat frequency then adjust T1 T2 to ma...

Page 6: ...iting for 2 second display change to below Put your frequency counter to DDS testing point the pad close to R27 Now the frequency counter reading should be same as screen display 10000 00KHz please ad...

Page 7: ...30M band MOD 30m band only has RX at factory default if you need 30m TX connect A right side of R4 on front display board then you have 40m 30m 20m RX and TX Youkits 2014 12 06...

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