The Electronics Universe

Semi homebrew rig

http://gokarters.com/smf/index.php?topic=1728.msg14902#msg14902

Hi folks. I know this is an older post, but I found the video very interesting. I recently dug my Eico 147 out and dusted it off. Plugged it in, and immediately got the bad hum. Trying to source the filter caps, I noticed a huge difference between prices with radial and axial caps. Am I missing something? Would I be able to get away with just using radials?

Any help is greatly appreciated.

Nice work as usual. Shame about the scratch though, been there and done that many times 

I just aquired a yaesu ft-5100 and it has low output on vfh <1w. Do you have any videos on this unit or have any resources for it. Thanks

Started the power supply.

First thing I did was build the tube rectified circuit on the breadboard. We ended up with about 190 volts on the B+.
Now we know the transformer is 250 volts but this is what happens when you use tube rectification.

EDIT TO ADD PICTURES


I then built up a solid state  circuit.  But this time we get 390 volts on the B+ and a tap for the preamp at 190 volts.
Remember this is unloaded. No load on the supply.

EDIT TO ADD PICTURES