Jbot Qrp Amp Board
JBOT Broadband Qrp Amplifier board
Out of stock
JBOT Qrp Broadband Amplifier board
JBOT is a QRP 5 Watts HF Linear Amplifier, designed by OM Ashar Fahan.
This is our new JBOT PCB , which has been tested and performs well.
Glass Epoxy PCB
The PCB has provision for SMA as well as 2 Pin Connectors for RF Input And RF Output.
Tech Specs of JBOT:
RF output 5 watts HF Linear Amplifier
RF level not same on all bands.
Broadband 3.5 To 28 MHZ
Power Supply: 12 Volts
IMP: Requires suitable Low Pass Filters for specific band of use.
Use Of Project:
QRP Linear Amplifier for, SSB,CW, Digital Modes
Use as a driver for a QRO linear amp with suitable drive with enumerators after this amp.
Reduce power from 5 watts to QRPP power levels for QRPP use.
1. The amplifier output want be the same on the all HF bands, maybe lower on higher bands.
2. We changed two resistor values from the original R5 100E To 470E
And R3 22E To 10E
3. The RFC and TF3 we have used Balun transformers, Toroid T37-43 could
also be used here as per the article on JBOT
This project is for experimental use and can be made more efficient with some other transistors for higher power levels by further research.
Only logged in customers who have purchased this product may leave a review.