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Final PA Transistor

 

Here is one used in the 1W and 5W xcvr of KitsAndParts designed by Diz, W8DIZ<sk>.
I bought a 100 and tried them in a 20m 5W and a 12m 1W and got the exact same
output as non-fake parts.? Go look at the manuals at KitsAndParts.com in the retired kits section
to see how they are used in the final PA section.? These things will take a beating
and keep on ticking.? Heat sink recommended and look at the manual to see how
to attach using a screw and nut and you don't have to drill holes if you used
the horse shoe shaped heatsink.

<>

Mike has some boards available and the toroids you need to build one up, if you
happened to miss the run of a 1,000 kits.? How many of you are using them?

That's what I thought.? :-)

I have one more to build from an unbuilt kit that I found in a drawer.

FYI,

--
chuck adams, aa7fo
QRP WAS 17m started Apr 2, 2025
WAS-17 QRP --> TX,FL,SC,GA,OK,AR,KS,AL,AZ,MN
PA,CA,CO,WI,NE,ID,IL,NC,NY,WV
MA,OH,OR,RI,MT,WY,WA
DXCC W,VE,JA,PY,ZL
 

I run my 40 and 17x 5watters all the time. Awesome little radios!

I need to rig up an attenuator knob for the 17 because the filter is so tight/narrow that it rings horribly on strong signals.

I bought and built my kits after I saw your videos on YouTube, Chuck.

I was a no-code Extra with only a foggy notion of how radios worked. Watching your videos caused a lightning show in my brain. Building the rigs cemented a lot of basic knowledge for me.

And then of course I had to learn Morse to use them. The rest is history.

¡ªTim NC0Q

On Apr 30, 2025, at 10:40, chuck adams via groups.io <chuck.adams.phd@...> wrote:

?Here is one used in the 1W and 5W xcvr of KitsAndParts designed by Diz, W8DIZ<sk>.
I bought a 100 and tried them in a 20m 5W and a 12m 1W and got the exact same
output as non-fake parts. Go look at the manuals at KitsAndParts.com in the retired kits section
to see how they are used in the final PA section. These things will take a beating
and keep on ticking. Heat sink recommended and look at the manual to see how
to attach using a screw and nut and you don't have to drill holes if you used
the horse shoe shaped heatsink.

<>

Mike has some boards available and the toroids you need to build one up, if you
happened to miss the run of a 1,000 kits. How many of you are using them?

That's what I thought. :-)

I have one more to build from an unbuilt kit that I found in a drawer.

FYI,

--
chuck adams, aa7fo
QRP WAS 17m started Apr 2, 2025
WAS-17 QRP --> TX,FL,SC,GA,OK,AR,KS,AL,AZ,MN
PA,CA,CO,WI,NE,ID,IL,NC,NY,WV
MA,OH,OR,RI,MT,WY,WA
DXCC W,VE,JA,PY,ZL

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