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Title: Elmac A54H finished Post by: ka1tdq on September 25, 2018, 09:19:33 PM I finished restoring my Elmac A54H transmitter and it actually sounds pretty good! I sample/rectify the RF coming out and send it directly to my headphones. Carrier output is 20 watts. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Aside from recapping and changing out a few components that were bad, it's almost entirely stock. I did get rid of the selenium diode in the negative peak limiter circuit and modify the mic preamp section a little. I wanted to keep everything as close to original as possible. I like Elmacs. I've traded a few over the years, but I'm going to keep this and my AF-67. I still need to build a power supply for that one and go through it as well. Jon |