[Elecraft] Using tube transmitter with K3/KX3/K2 as receiver?

[david Moes]

the TX1 with High level plate modulation it will do way more on AM than 
the K3  I get about 110W carrier.  the TX1 didn't do SSB without 
additional hardware which I have but its not yet restored.   the real 
point is the vintage fun factor of restoring and getting on the air with 
110lbs of iron.

David Moes


VE3DVY,  VE3SD

On 10/23/2014 20:44, Don Wilhelm wrote:
> Re: Heath TX1 power --
> The Heath TX1 used a pair of 6146 output tubes, those normally run 180 
> watts *input* power.
> Modern transceivers (K3 included) are rated fort power output.
> If one assumes a 67% efficiency (realistic) at 180 watts input, the 
> output power will be 120 watts - that is about what one can get from a 
> K3, although I do not recommend running the power knob to more than 
> 100 watts to keep IMD under control.
>
> Sooo - I don't think the TX1 will "crank out a whole more power" It 
> seems to me to be about the same.
>
> 73,
> Don W3FPR
>
> On 10/23/2014 8:25 PM, david Moes wrote:
>> Good question and answers here   I did the same as don suggested up 
>> till recently.   I have  a Heathkit TX1.  I had no receiver until 
>> recently when I got the RX1 to go with it.   bit of a crappy reciever 
>> but its still a fun to do the nostalgia thing.    The TX1 will crank 
>> out a whole lot more power on AM and CW than the K3 and it warms the 
>> shack in the winter. Its not all DX and contests sometimes its fun to 
>> get out the old and tinker.   next up is 1930 era two tube  push pull 
>> UX-245 40m transmitter   now were talking chirp!.
>>
>
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