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

[Alan]

 > the TX1

Ah yes, the "Scratchy Apache" was a fine radio.  I had the SB-10 SSB 
adapter to go with it.  It worked great with a VHF transmitting 
converter because the low-level output from the SB-10 was just about the 
right power level to drive the converter.

I used to frequently get unsolicited compliments on my audio quality.  
(No crystal filters in the transmit path.)

Alan N1AL



On 10/23/2014 05:57 PM, david Moes wrote:
> 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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>
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