Dumilo II – QRP Dummy Load now on the shelves

The modification for the QRP dummy load to add RF detector components is now included in the new kits. The parts and instructions are also on the shelf for those who want to upgrade their original kits.  The new kits are $20.00 delivered in US and the mod kits are $5.00 to those previous buyers. The kits include three choices of resistors designed to match different voltmeter inputs. Common voltmeters have input impedances of 11, 10 or 1 megohms, and, by selecting the right resistor for your voltmeter,  your RF probe from the dummy load will read more accurately the actual power out.  Remember that all dummy loads have power vs time limitations.. Don’t exceed 5 watts maximum output into our dummy load without a cooldown period between application of power.  This simple rule will assure no overheating and the dummy load should last a lifetime of lab use..  73  Glenn NN8G www.pastimeprojects.com

 

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