Don't know much at all about amps; so bear with me.
When the amp is off, I am seeing a 1 1/2 watt carrier loss thru it into the dummy load. IOW, 3w in to the amp, and 1 1/2w out of the amp when turned off. I'm sure this
can't be correct.
BTW - what is the proper input power to mrf454's?
5w or 10w/each?
Took out the mrf454's and tested them. They tested OK with both the diode test and resistance test. Also not seeing anywhere near 200w out of it, so I am at a bit of a loss to figure out why this amp isn't working as it should.
What could be causing this? Bad relay? Bad coupling caps?
Again; working w/o a schematic has been difficult.
Also the original receive amp transistor is marked:
"034
MPS
5172"
So I have NO idea what part is in this thing.
Any ideas?
2N5172- maybe?
Translates to equivalent 2N290
4.
Perhaps a suggestion for a replacement trans that has low noise/clean output?
Like a 2N5088?
BTW 2222DBFL, this pic is similar to the inside of this amp and your amp; could you take a closeup pic of the small transistor near the very front of your box (circled in red in the pic), and can you read the numbers on the face of it and its orientation? That may help me figure out what transistor I need to get this amp fixed and off my bench. Much appreciated!
Thanks