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Fm transmitters
Posted: Thu Apr 24, 2003 9:50 pm
by warden
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
Posted: Fri Jul 18, 2003 8:12 pm
by Speedster
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
Without trimer cap's YES!
Posted: Sun Jul 27, 2003 10:16 pm
by fmdream
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!
TRUE THAT
Posted: Mon Jul 28, 2003 1:16 am
by StormiNorm
When was the last time you Bought or was able to find a BGY133 AVAILABLE??
bgy 33
Posted: Tue Jul 29, 2003 7:52 pm
by fmdream
I found bgy33 since 1997. on
http://www.paradise-electronics.nl/nede ... toren.html price in that time is about 80€ for one pices.
Check on the internet to find delaer's[/img]
Posted: Wed Jul 30, 2003 1:03 pm
by pcs
This hybrid amp has not been produced for some time now,
its impossible to find it.
Schematics
Posted: Wed Aug 20, 2003 5:08 pm
by fmdream
Open This link:
http://www.*Ads not allowed*/modules.php?name ... tit&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....
Re: Schematics
Posted: Sat Oct 23, 2004 11:51 am
by marinbnm
fmdream wrote: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?????
Posted: Sat Oct 23, 2004 1:32 pm
by pcs
Why not? Maybe you should read forum rules.
Posted: Tue Mar 06, 2007 5:48 pm
by Mladen
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