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HAMTRONICS LNW-144, Сборка, установка и обслуживание, Страница: 4 / 4

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©1995 Hamtronics, Inc.; Hilton NY; USA.  All rights reserved.  Hamtronics is a registered trademark.    Revised: 10/23/02 

- Page 4 - 

PARTS LIST. 

Ref # 

Description 

 

C1 

6 pf disc (LNW -144 & 160) 

 

2 pf disc (LNW -220) 

C2 

20 pf cer. variable (144 & 160) 

 

4.5 pf cer. variable (LNW -220) 

C3 

.001 µf disc (1nK or 1nM)  

C4 

not used 

C5 

.001µf feedthrough capacitor 

C6 

not used 

C7 

0.15µf mylar capacitor 

C8 

.001µf feedthrough capacitor 

L1 

#22 bus wire 1/8 inch i.d. with  

 

turns barely spaced apart.   

 

LNW-144 & LNW-220: 5 turns 

 

LNW-160: 4 turns 

L2 

0.33µH molded coil  

 

(orn-orn-sil-red) 

Q1 

N.E.C.  3SK122 mosfet 

R1-R2  100K 
U1 

78L08 Voltage Regulator IC 

Z1 

Ferrite Bead 

 

Содержание LNW-144

Страница 1: ...ounded wrist strap or at least discharge your hand to a grounded metal object just before picking up the transistor and the use of a grounded soldering iron is mandatory A heat sink is not necessary w...

Страница 2: ...wire coming off the bottom of the coil is bent to go directly over to the holes in the board The bottom of the coil should be 1 16 inch from the surface of the board Be sure that the coil leads are i...

Страница 3: ...to use a preamp even with a well de signed receiver in very strong signal areas such as the center of a city or other locations with high powered transmitters in the area Adding gain ahead of a recei...

Страница 4: ...variable 144 160 4 5 pf cer variable LNW 220 C3 001 f disc 1nK or 1nM C4 not used C5 001 f feedthrough capacitor C6 not used C7 0 15 f mylar capacitor C8 001 f feedthrough capacitor L1 22 bus wire 1 8...

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