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warden
New registered user
Joined: 18 Apr 2003
Posts: 4
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 Fm transmitters |
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Are there any fm transmitter circuits out there that do not require a trimmer cap? I have been to every local electronics shop in town, and no'one has them!  
Thanks
Warden
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| Thu Apr 24, 2003 9:50 pm |
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Speedster
Guest
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hi warden,
just to test, you can substitue trimmer cap by one capacitance that is in the range of the trimmer, but who will not vary the emitter frequency...
Speedster
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| Fri Jul 18, 2003 8:12 pm |
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fmdream
New registered user
Joined: 27 Jul 2003
Posts: 3
Location: Croatia/Dalmatia/Zadar |
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| Without trimer cap's YES! |
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You may build a fm exciter without any trimer capacitors! Most commercial exciters (up to 20 Watts) no need trimer. You can use a bgy33 or bgy133 from Philips (hibrid amplifier). Input for this device is 100~150mW output 0~20 Watts on 87.5~108mHz. It's very simple! 
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| Sun Jul 27, 2003 10:16 pm |
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StormiNorm
Guest
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| TRUE THAT |
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When was the last time you Bought or was able to find a BGY133 AVAILABLE??
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| Mon Jul 28, 2003 1:16 am |
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fmdream
New registered user
Joined: 27 Jul 2003
Posts: 3
Location: Croatia/Dalmatia/Zadar |
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| Tue Jul 29, 2003 7:52 pm |
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pcs
Site master
Joined: 18 Jan 2002
Posts: 3073
Location: Radio Land |
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This hybrid amp has not been produced for some time now,
its impossible to find it.
_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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| Wed Jul 30, 2003 1:03 pm |
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fmdream
New registered user
Joined: 27 Jul 2003
Posts: 3
Location: Croatia/Dalmatia/Zadar |
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| Wed Aug 20, 2003 5:08 pm |
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marinbnm
New registered user
Joined: 23 Oct 2004
Posts: 3
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| Re: Schematics |
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 | | Open This link: http://www.*Ads not allowed*/modules.php?name=Downloads&d_op=getit&lid=24 to get technical manuals from PTEK Broadcast manufacturer. In this manual you will get the schematics of fm exciter and power amplifier without any trimer capacitors or hibrid module.... |
Why "ads not allowed", ha?????
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| Sat Oct 23, 2004 11:51 am |
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pcs
Site master
Joined: 18 Jan 2002
Posts: 3073
Location: Radio Land |
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Why not? Maybe you should read forum rules.
_________________
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128 |
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| Sat Oct 23, 2004 1:32 pm |
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Mladen
New registered user
Joined: 06 Mar 2007
Posts: 1
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this topic is old, but if somebody need BGY 33, I have four (4) peaces, they are new and unused, price is 50€ / 1pcs.
petrusic@globalnet.hr
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| Tue Mar 06, 2007 5:48 pm |
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