Alt-BEAM Archive
Message #02272
To: beam@corp.sgi.com, "'Magic Kent'" money@islandnet.com
From: "van Zoelen, Bram SSI-TSEA-352" Bram.A.A.vanZoelen@is.shell.com
Date: Tue, 13 Apr 1999 09:53:39 +0200
Subject: [alt-beam] Re: Help with AM/FM Transmitters
Just for my bare mind.
A FM transmitter for the 3m band [88-109 MHz]
All resistor values are just a blind guess!!!
[font courier]
+ + o+
o o |
| | \ Antenna
| | C1 -/- / Coil \|/
| |R1 /-- \ |
In | | | / |
+ | b|/+---+---------
o-||---+----+---|T ---
C4 | | |\ ---C3
| |R2 | |e |
| | ---C2 +---+
| | --- |
| | | |R3
--- --- | |
|
---
C1 - 60 pF Adjustable
C2 - 470 pF
C3 - 3.3 pF
C4 - 1 uF/16V
R1 - 10K
R2 - 47K
R3 - 1K
T1 - NPN common type such as
BC 108 or 2N2219
Coil - Diam. 6 mm 6 windings/ 1 mm thick wire
> ----------
> From: Magic Kent[SMTP:money@islandnet.com]
> Reply To: Magic Kent
> Sent: Tuesday, April 13, 1999 6:59 AM
> To: beam@corp.sgi.com
> Subject: Help with AM/FM Transmitters
>
> Does anyone know where I could pickup a cheap AM/FM transmitter locally?
> Ex: Electronics Stores, Wal Mart :-) , etc.?
>
> Thanks.
>
------------------------------------------------------------------------
eGroup home: http://www.eGroups.com/list/alt-beam
Free Web-based e-mail groups by eGroups.com
Home