3171 - 250mW FM Power Amplifier
! Sorry this product is discontinued - Please
see alternative 3167 instead !
This project is a simple 2-transistor VHF power amplifier, with about 16dB gain, and requires no tuning or alignment procedures.
Wideband techniques have been used in the design and the circuit is equipped with a "low-pass" filter to ensure good output spectral purity.
The circuit is specifically designed to amplify the output of 7mW to 10mW Wide Band Frequency Modulated (WBFM) transmitters like our Order Codes 3018 and 3172 to a final level of 250-300mW (enough for a low power home broadcast station).
Please note that most standard DC mains adaptors are unsuitable for powering FM transmitters as they introduce an intolerable level of mains hum.
| Technical Specifications | |
|---|---|
| Supply Voltage | 12Vdc/500mA (e.g. battery or kit 1171) |
| Waveband | Standard FM |
| Frequency Range | ~88MHz - 108MHz |
| Output Power | 250 - 300mW |
| Dimensions | 45W x 70L x 15H mm |
| Board connections | Screw terminal blocks |
| Product Format | Assembled (AS) more |
| Documentation |  User Manual |
- Please note that it is illegal to transmit a radio signal without a licence
| Product Code |
Description | Price each exc. VAT (GB Pounds £) |
INC. VAT each 1+ |
Quantity | |
|---|---|---|---|---|---|
| 1+ | 5+ | ||||
| AS3171 | ASSEMBLED 250mW FM Power Amplifier |
£17.83 | £15.16 | GB£20.95 | |
Please see our FM Transmitters page for more products like this
