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Been away from the forums for a long while, but I have exhausted pretty much every other source of information, I have recently purchased I Anritsu Spectrum analyzer knowing that it had display issues but considered it worth at least a look at the price. What I didn't know is that there is no...

I have just finished building a few bits of homebrew test and measurement tools, my question is, does anyone have any recommendations of any software/freeware packages that would enable me to design front panels to give my projects a finishing touch. I have access to a colour laser and colour...

Is there anyone out there with a circuit diagram for this old classic amp, just got it as part of a job lot and I am wanting to restore it, but it appears that someone has been tinkering inside it. any help really appreciated. Google not really helped with this one. Karl

Just got hold of one of these old classics, badged FDK, needs a bit of TLC, any one out there with a service manual/schematic for it, I have posted on several forums and so far only managed to get a user manual but without the circuit diagram, many thanks in advance, Karl

After many hours fault finding, it is time accept the fact that my board is dead, is there anyone out with a spare board, coded PB121, any condition considered as I can transplant any suspect parts from my origional unit, maby thanks, Karl, M0KRL.

A couple of years ago I put up a half size Windom, about 21mtr length, homemade 4:1 balun and direct coax feed, happy with the compromise results, no tuner needed on 40, 20, 10 meters, with SWR below 2:1 on all bands. But now I have found a slightly different design, which adds a second wire...

Uniden HR 2510

HR 2600 full manual