The following subject is on par to bringing with you an ice chest of Cold Beer to a Tent Revival Meeting on a hot July Sunday afternoon. [It is with uncertainty that you would be marched out of the tent or mobbed to get a cold brew.]
Linear Amp with Tubes.
Yes, this AI stuff works as this showed up on my Android phone and I do not know how it did.
One of the early on paragraphs states this is a linear amp for QRP Transceivers so there is a connection to this blog.
I just had a revelation that QRP follows QRO in an alphabetical listing -- so who ever came up with the Q Signals was a visionary that you must step down for less fire in the wire.
I have many QRP homebrew transceivers, and you can spot them on my You Tube channel, so they do exist. Literally all of them include the ability to switch in an external linear amp. My current 40M homebrew SDR Radio can operate at 5 watts, 120 watts or 600+ watts. That is a lot of fire in the wire.
I must admit that I had to add a whole bag of snap on Ferrite cores to clean up the RF feedback when operating at nearly 700 watts out with a rebuilt SB-200. But the norm today seems to be 100 watts and a wire at home and QRP from a SOTA site.
Now we will have those who read this blog yelling that they bought a 100-watt solid state amp kit from China for $17.87 plus $2.98 speed-pack shipping. So that is an alternative. I have seen those kits but am uncertain as to their outcome.
The amp in the link is good for 150 watts and is homebrew. There is a terrible negative to a tube amp and that is the high voltage. Most hams who are less that 65 years old (born after 1959) have never worked with HV so that is a real serious concern.
But for the most part this amp puts out 150 watts and that is a great power level if you want something more that beating your head against the wall trying to make contacts running 5 watts with a dipole up 10 feet in the air at sea level.
So, this is presented today because some AI software found me and now, I share this with you. One of the better Solid State Amp suppliers is in Ohio and that is Communications Concepts Inc. They have some interesting kits and two of my amps were supplied by this company. One kit offering does 300 watts with a 28 VDC supply and has low drive requirements. Figure about a dollar a watt will give you plenty of fire in the wire using this kit.
There is another key element in the link and that is the actual build construction done by non-US hams. Homebrewing from afar seems more prevalent than from those who simply flash the plastic at Amazon and are not forced to be creative in using what they have.
73's
Pete N6QW