Recent content by Jer Jer KK6AC

Disregard, I found it!!! Bum info off interne. Bias transistor diagram had base / collector backwards!! Bias is working now! Thanks!

I have a question and maybe someone might be able to provide some insight. I purchased and built 2 PL14-20 Rev E kits a couple years ago. I finally have had time since retiring to work on my Phase Linears. I am currently working on my 400 Series II which I replaced bad outputs and emitter...

I looked at my Dual 500 today and I know this would be a great task to make a PCB back plane. Still debating on that. I see ferret beads, I believe this is to suppress parasitic oscillations and no wonder with how this amp (along with the rest of Phase Linear amps) is wired. No disrespect, I...

I have a Dual 500 that I am planning on upgrading. This will take some time as I have alot going on in my life (retired... LOL!). I will need to purchase alot of material for the rebuild. Really thinking about redesigning the backplane (via a schematic and one of those doit yourself circuit...

I am new to this forum, please be patient with me. I am sure many have asked this before, but is there a way to upgrade a Phase Linear Dual 500 (D-500, but mine is a "Dual 500) using a White Oak Audio PL14 control board? I Have built 2 so far, one for a 700 Series II that I have and one for a...