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Title: Simple Speech Amplifier Post by: W7SOE on October 11, 2007, 02:00:24 PM Would a old simple tube PA amplifier be a suitable speech amplifier for a transmitter? My "new" homebrew transmitter requires a 500 ohm input and some of these old tube amps match that impedance.
I was going to use my Johnson Viking II as an exciter and speech amp. I am not sure that extracting the audio from the JVII is a good idea because it is a hassle in addition to the JVII audio being notoriously bad. Thanks Rich Title: Re: Simple Speech Amplifier Post by: W3FJJ on October 11, 2007, 02:23:21 PM Yes that should work fine. GL Chuck
Would a old simple tube PA amplifier be a suitable speech amplifier for a transmitter? My "new" homebrew transmitter requires a 500 ohm input and some of these old tube amps match that impedance. I was going to use my Johnson Viking II as an exciter and speech amp. I am not sure that extracting the audio from the JVII is a good idea because it is a hassle in addition to the JVII audio being notoriously bad. Thanks Rich Title: Re: Simple Speech Amplifier Post by: WA1GFZ on October 11, 2007, 08:03:27 PM V2 should do well as a driver at such a low power. It does not take a lot of work to make a ve sound good and even easier at low power. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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