Ramsey Electronics FX-440 Manual page 92

Synthesized fm & pacicet data uhf transceiver
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("'(ORB. Install L17, 2.2 uH in upright position with the inductor's
body in the designated hole. This is a molded inductor,
resembling a resistor but is larger. Look for 2 red bands on its
body.
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DR9. Because it must dissipate slightly more power, resistor R54
is larger than most of the resistors used in this circuit. Its value is
180 ohms,
1
hwatt (brown-gray-brown). Install R54 in upright style.
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DR10. Install C25 and C47, both 27 pf.
( "] 1,,..(0R11. Install L22, 2.2 uH inductor, same style as in step ORB.
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OR12. Install L3, .015 uH. L3 is one of the small red 2 turn
pr&wound coils.
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OR13. Install R21, 470 ohm (yellow-violet-brown).
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OR14. Install C26, 3.9 pf.
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DR15. Install L4, .015 uH, just like L3 above.
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OR16. Install C27, 2 pf.
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DR17. Install 04, type 1N914 or 1N414B. Orient the
cathode band correctly.
[ ;] (\,:) OR1 B. Install C53, . 01 uf.
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OR19. Install C18, 100 pf (marked 100 or 101 ).
Install the following resistors, each in upright position:
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DR20: R16, 47K (yellow-violet-orange).
( i] ( 11] DR21: R17, 270 ohms (red-violet-brown).
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DR22: R12, 100 ohms (brown-black-brown).
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1
OR2;3a If you think that transistor Q3, type NE021, is tiny, wait
until
¥ou
install C75, the SMT (Surface Mount Technology) or
"chip capacitor at QB, the Transmit Final Amp! Study the drawing
and Q3 itself before removing the device from its protective paper.
[·./] ['·;l.
OR23b. The longest of the three leads is the collector, which
points to L2, as pictured. Remove 03 from its adhesive paper,
bend all three leads down 90 degrees, and insert as illustrated.
Assm. 32
FX-440

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