Nice WEB Site from AC0C that I Recommended. A lot’s of useful tips for old Heathkit “SB200” Linear Amplifier and additional DiY ideas and not just for PA stuff. Photo by AC0C I have loved RTTY since I was a young ham. Had a Western Electric RTTY machine in my bedroom as a kid. My…
PM500EF it’s an RF Power Amplifier designed for Medium Wave Broadcast Radio Band transmitters. PM500EFs output power is 500 Watt PEP ( 125 Watt Carrier ) at 50 Ohm load. This PA amplifies the input RF signal typically by 17dB, it operates at 48V / 17 Amp. max power supply.The operating class is B Push-Pull…
Chinese Amplifier Revisited. What’s inside, all manual pages and shipping crate images. Ed, NT2X used this amplifier at VR2EH (Hong Kong) in Oct 2011. This exclusive content and pictures were provided by NT2X © Pictures of the amplifier unit, with images of the accompanying manual pages are provided. The unit is packaged in a plywood…
A brief preview of the “Product Review” review of the Tokyo High Power HL350V 2-meter amplifier scheduled to appear in the May 2012 issue of QST magazine. Read also : https://www.cqdx.ru/ham/new-equipment/tokyo-hy-power-vhf-pa-hl-350vdx/
? HL-510V is a solid-state VHF / 144MHz band linear power amplifier with the maximum output power of 500W?Switching mode AC to DC power supply is built in. It is great for 2m DX communications as well as EME QSO? ? AC voltage is automatically selected between AC 100V and 240V. No rewiring of AC…