[AMRadio] Re: AM Transmitter Advice??


George KB2Z Thermionic_Emission at earthlink.net
Sat Feb 18 14:15:59 EST 2006


If memory serves the diodes need to be configured push-pull for 
amplifier use and push-push if employed as an oscillator. . Its 
important to use a very noisy buffer in front the oscillator to cancel 
the hash inherent to the diodes.The second diode acts similar to a 
screen for steering


Phil Galasso wrote:
> ----- Original Message -----
> From: "Bob Deuel" > Larry's tongue in cheek comment employing 866's as a
> linear amplifier tube
>   
>> prompted me to contribute the following: Certain full-wave rectifiers can
>>     
> be
>   
>> configured to amplify or oscillate. I have built audio, Hartley and
>>     
> Simpson
>   
>> oscillators using only 6AX5GT's full-wave rectifiers as the sole active
>> device. These were displayed at 2004 Mid-Atlantic Antique Radio Club Meet
>> and actually won a Blue Ribbon.
>>     
>
> Could you get me a copy of the article or point me to a place where I could
> get it. That is MOST interesting. I have seen vacuum tube diodes used as
> noise generators (the 5722 comes to mind here), but I have never seen them
> used as amplifiers or oscillators.
>
> Phil K2PG
>
>
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