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Parts Inventory

 

 The table below lists all parts in the kit. The K1 Owner's manual has photographs of similar parts.

 

Ref. 

Description 

Part No. 

Qty 

C1 

Capacitor, 10 pF, 500 V NPO disc 

E530026 

C2 

Capacitor, 22 pF, 500 V NPO disc 

E530027 

C3 

Capacitor, 39 pF, 500 V NPO disc 

E530028 

C4 

Capacitor, 82 pF, 500 V NPO disc 

E530029 

C5 

Capacitor, 150 pF, 500 V NPO disc (“151”) 

E530030 

C11, C12, C17 

Capacitor, .001 µF, 25 V("102") 

E530001 

C13, C14, C16, 

RF-

C76 

Capacitor, .01 µF, 25 V ("103") 

E530009 

C15 

Capacitor, .047 µF, 25 V ("473") 

E530025 

C10 

Capacitor, 100 pF, 200 V, NPO disc ("101") 

E530034 

C9 

Ceramic trimmer, 5-30 pF 

E540001 

D1, D2 

Diode, 1N5711 

E560004 

D3 

Diode, 1N34A 

E560000 

FIL-

J1 

Conn., 3-pin female, 0.1” spcg., Samtec SSW-103-01-G-S 

E620009 

FIL-

J2 

Conn., 5x2 female, 0.1” spcg., Samtec SSW-105-01-G-D 

E620045 

K1-K10 

DPDT latching relay 

E640001 

10 

L1-L4 

Toroidal inductor, T37-2 core (RED); see text  

E680006 

P1 

Conn., 3-pin male, .1" spcg., Samtec MTSW-103-22-G-S-420 

E620046 

P2 

Conn., 5x2 male, .1" spcg., Samtec MTSW-105-22-G-D-420 

E620047 

R1, R2 

Trimmer potentiometer, 100K 

E520001 

R5 

Resistor, 100 ohms, 5%, 1/4-watt (brown-black-brown) 

E500010 

R3 

Resistor, 200 ohms, 5%, 1/4-watt (red-black-brown) 

E500020 

R6 

Resistor, 1 k, 5%, 1/4-watt (brown-black-red) 

E500013 

RF-

R39 

Resistor, 1.8 k, 5%, 1/4-watt (brown-gray-red) 

E500004 

R4 

Resistor, 3.3 k, 5%, 1/4-watt (orange-orange-red) 

E500017 

RF-

R4 

Resistor, 5.6 k, 5%, 1/4-watt (green-blue-red) 

E500007 

RFC1 

RF choke, 82 µH, miniature (gray-red-black) 

E690003 

T1 

Toroidal transformer, FT37-43 core (gray); see text 

E680003 

U1 

IC, Microcontroller, 16C72A, 16F872A or 16C72A 

E610007 

U2 

IC, Op-amp, LM358 

E600010 

Z1 

Ceramic resonator w/internal capacitors, 4.0 MHz 

E660001 

HDWR 

Socket for U1, 28 pins 

E620011 

HDWR 

#4 split lock washer (2 spares) 

E700004 

HDWR 

4-40 x 1” ZN ST Phillips machine screw (2 spares) 

E700047 

HDWR 

Standoff, 3/16” dia. x 5/8”, #4 hex, RAF #1323-4-A 

E700048 

MISC 

Enamel wire, #26 Thermaleze, GREEN 

E760004 

2 ft. 

MISC 

Enamel wire, #26 Thermaleze, RED 

E760002 

5 ft. 

MISC 

Hookup wire, #24 insulated 

E760005 

3” 

MISC 

KAT1 PC board 

E100112 

 

Summary of Contents for KAT1

Page 1: ...match has been found matching parameters are saved so that the settings can be recalled immediately on any band change ATU parameters L C SWR etc can be viewed using the K1 s menu Additional menu ent...

Page 2: ...MTSW 103 22 G S 420 E620046 1 P2 Conn 5x2 male 1 spcg Samtec MTSW 105 22 G D 420 E620047 1 R1 R2 Trimmer potentiometer 100K E520001 2 R5 Resistor 100 ohms 5 1 4 watt brown black brown E500010 1 R3 Re...

Page 3: ...cond row of relays faces in the opposite direction from the first row Do not solder yet Using a book or other flat object to hold the relays in place on the top side of the board flip the board over S...

Page 4: ...2 seconds per lead Trim the leads after soldering Install the LM358 IC at U2 with the notched or dimpled end oriented as shown by the component outline Bend two corner pins to hold the IC in place th...

Page 5: ...ly remove the enamel insulation from the leads to within 1 8 3 mm of the core The enamel wire provided can be heat stripped using a small amount of solder on the tip of your iron Stripping using this...

Page 6: ...ion using a match or lighter as the flame may fuse the pairs of wire together causing them to become shorted Another way to remove the insulation is to use fine sand paper Tin T1 s leads with solder I...

Page 7: ...male connector P2 on the bottom of the ATU board As with P1 make sure the connector is seated completely flat against the PC board Straighten the pins on U1 16C72A Refer to Figure 4 6 in the K1 owner...

Page 8: ...revision E or later move the RF DET jumper on 3 pin header P3 to the KAT1 position If your K1 s RF board is revision D or earlier locate R36 on the RF board near the antenna jack Unsolder the lead of...

Page 9: ...cribed in the K1B80 errata sheet The RF choke is supplied with the 80 meter band kit Filter Board and KAT1 Module Installation Plug in the Filter board you plan to use being very careful to line up al...

Page 10: ...Exit the menu then hold WPM and WPM together to go into TUNE mode you should see r8 5 Immediately tap any key to exit TUNE Note r8 5 is an SWR test value only showing whether digital data is being tra...

Page 11: ...abilized about two seconds tap WPM or WPM until the wattmeter shows close to 5 0 watts Then adjust R1 on the KAT1 so that the K1 s LCD shows the same power If you re using an RF probe Enter TUNE mode...

Page 12: ...T To display forward power without changing the present L and C settings Change the ATU mode from TUN to OUT and exit the menu Enter TUNE mode forward power will be displayed until you tap any switch...

Page 13: ...lower using the OUT menu entry However if you see PLO on the LCD during TUNE you may have power set too low to obtain a stable SWR reading The other modes are primarily used for calibration and troubl...

Page 14: ...the center conductor and braid together and treat the system as if it were a random wire This may allow you to operate well below the antenna s intended bands Random Length Antennas The KAT1 is optimi...

Page 15: ...lly unless you re operating QRPp very low power In this case set the power to about 1 to 2 watts for tune up purposes then decrease it for operation If the ATU shows an error message Exx in the menu w...

Page 16: ...ata rate U1 sleeps except during antenna tune up so it generates no receiver noise KAT1 Schematic W Burdick E Swartz Elecraft 2 6 H Rev Sht 32 H 64 H 1 3 H Date MCU 150 By L1 L2 K2 L3 L4 C1 C2 C3 C4 C...

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