SDRs work
Progress
Метка: amplifiers
1.5KW HF load SWR
Testing MRFE6VP61K25H
Photos and video (RU)
Big HF load
It’s based on a copper plate, big old whipped aluminium radiator and two 100Ohm resistors, 800watt each.
Some interesting packages
Packages
Dn-radio kit rd16 amp. IMD3
Not the best, around 20dbc — 26db PEP average, needs some work 🙂
Wolf 3.5″ IMD 3
10watt power 28dbc — 34db PEP: 10watt power 30dbc — 36db PEP: 5watt power 15dbc — 21db PEP:
Wolf2 amplifier IMD3
Measurements
Wolf 7 amplifier IMD 3
Measurements
Wolf 7″ amplifier in the thermal camera
No active cooling. Also there are no feedback circuits on both stages and untuned bias on the second.