BA1404 transmitter

FM bube, mini predajnici i prijemnici - forum vezan za radio opremu.

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BA1404 transmitter

Postby mataya » 04-04-2009, 11:14

zamolio me prijatelj da mu napravim neki mali predajnik.
i ja sam se odlucio za ovaj predajnk:
http://electronics-diy.com/BA1404_Stere ... mitter.php
ali probleme mi pravi ova promjenjiva zavojnica.
nema nikakvih podataka za nju. :azdaja:
ili ja nisam vidio?
koliki bi raspon induktiviteta trebao biti?
Sačuvajte drveće => pojedite dabra.
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Re: BA1404 transmitter


Re: BA1404 transmitter

Postby stojke369 » 04-04-2009, 12:50

L1 - 3.5 Turns Variable Coil
3.5 Turns High Precision Variable Coil (65 - 79nH)

These tunable RF coils are ideal for precise frequency tuning of your FM transmitter / FM Receiver throughout the entire FM band (88 - 108MHz). The magnet wire is halfway embedded within the plastic providing excellent frequency stability. Variable coils may be used as a substitution for an air coil and a variable capacitor. Dimensions are 7mm x 10mm.

http://electronics-diy.com/product_deta ... 20-%2079nH)



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Re: BA1404 transmitter

Postby buco22 » 04-04-2009, 13:45

nećeš naći quarz 38kHz, ima shema za mono bez quarza
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Re: BA1404 transmitter

Postby cikljamas » 04-04-2009, 15:02

ja sam isto trazio taj kvarz,nema sanse,nigdje ga nema,a onda sam zbog tog kvarca odustao
od cijelog projekta...jbg
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Re: BA1404 transmitter

Postby Feko » 04-04-2009, 15:16

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Re: BA1404 transmitter

Postby mataya » 04-04-2009, 15:18

onda i ja odustajem...
:cry:
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