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The final product! I now have 2 under my belt. Next project will be a Carver C-500 amp. I'm sure I'll need help. Let me get through the holiday's and order some new boards from Joe..

I have a black face plate from Joe. Was to excited to see what it would look like. Tonight Ill show another picture with the black face plate.

Mark, Just so you can see what Blue LED's look like installed.

Joe, Your new boards I just assembled, show the use of either the 2N5088 or the NTE192 silk screened on the front or so I thought. The reason I used a NTE192, is because its already mounted in own clip. I mounted it upside down, replaced the 1/4" threaded spacer with a 1/3" threaded spacer. Set...

Joe, Your new boards I just assembled, show the use of either the 2N5088 or the NTE192 silk screened on the front or so I thought. The reason I used a NTE192, is because its already mounted in own clip. I mounted it upside down, replaced the 1/4" threaded spacer with a 1/3" threaded spacer. Set...

All is well. I replaced the Bias Transistor for the right channel. I have both channels set to .350. Right channel adjustment is still very close to max out clockwise. The amp is playing as I'm typing. Today, I'm building the led boards. The wife wants to know if I can replace the red for blue...

Thank you for the fast response. I used Joes back plane boards, so yes, I have changed both Bias Transistors, but i used NTE192 instead of 2N5088. His new boards accept both transistors? I have a spare which I'll replace tomorrow, and then report back to all.

Tonight's question for all. (Phase Linear 400, Series II) Left channels Bias reading .350. Adjustment in little past halfway on the Bias control. Right channel is reading .343. I cannot raise it anymore as the Bias control is all the way clockwise. Both speaker's outputs are reading 0.00. Do I...

I know, I know. I'm not going to lose her yet!

I'm sure why I think this is funny. Buy Joe say's "Nothing we do here is wife friendly." Carmen, (my wife) asked me why I keep feeling behind my PL400. I let her know, I'm making sure temps feel right. Asked her to reach around. You and I both know that the transistors conduct electricity...

Joe, When I removed the control board, my voltage also disappeared from the outputs. I knew its somewhere in the control board. I have a good side, so I just keep looking and measuring. Please take a look at attachment. Terminal #7 on the terminal board was not soldered. Soldered up the...

Joe, I know you're going to scold me big time. I install all the transistors, wired everything together, hooked up speakers, etc. Right channel plays perfect and as loud as i want. left channel has distortion that does change with volume level. It has got to be a missed solder joint, capacitor...

I have replaced to power supply using Joes capacitors and bridge rectifier. I have built the back planes panels using Joes kits. I have built a new control board with Joes kits, and I have installed your protection board inside of a new model 400 chassis. I am installing the backplanes and...

120 Volts

Good morning, everyone. Again, I need someone's help. I've started my second amp. Another Phase linear 400. I'm on step #18 from Joes backplate bring up recommendation. There he has us check for no voltage at the output terminals. Right channel is reading .000, but my left channel reads .139. I...

To both of you, Thanks very much!

And adjust?

I'm now working On a Carver C-500 amp. Its close to a Phase Linear 400. How do you measure the Bias Voltage? Thanks in advance!!

Does anyone know the size of the shoulder washers Joe uses in his PL400 Backplane board. Or where to order them from, with a part#? Thanks

I sure hope there's plenty. I'm not asking for free. This is going into a Carver C-500 amp. Yes, I too have used Joes new boards. See post #120. At that time, I did not think of saving the old boards. Joe's boards do not fit the carver amp, but the Leds are interchangeable.