Power transistor help

[Gepetto]

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.

Huh???

I have NO instructions to my knowledge about the use of NTE192 transistors. They require special handling to install correctly. You should post pictures of what you did Gary. The NTE192 devices install differently than you might think. Is there a reason that you went this route instead of using the transistors provided in the kit?

 

[gary33030]

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 both Bias to .350. When I get home tonight, I'll pull those out and install the supplied transistors.

 

[gary33030]

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 both Bias to .350. When I get home tonight, I'll pull those out and install the supplied transistors.

 

[Gibsonian]

i cant take credit for the handles...mr george thought of this one...and yes, they are beautiful...

Nice doily

 

[MarkWComer]

The wife wants to know if I can replace the red for blue LEDs? Do I have to do anything different?

Those LED arrays do come in different colors, but I’m not sure about blue. Green for sure.

EDIT:
Yup! Blue! If the voltage is the same, no modification to your display board is needed!
https://core-electronics.com.au/10-segment-light-bar-graph-led-display-blue-kwl-r1025bb.html

 

[gary33030]

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

 

[George S.]

Very nice!

 

[MarkWComer]

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

SEXY! With one of those dark replacement faceplates would be even more so!

 

[gene french]

dont know which i like best???
both look great!!!

 

[gary33030]

SEXY! With one of those dark replacement faceplates would be even more so!

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.

 

[gary33030]

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..

 

[gene french]

congratulations...

 

[Gepetto]

Hi Gary, I thought I had responded that the NTE 192 was planned for but I had not done anything yet to qualify it. It was simply a plan ahead, which I do all the time, for a day when the 2N5088 may no longer be available.

 

[gary33030]

All,

I now have 2 Phase Linears 400 WOPLed under my belt. Everyone says you'll get hooked on this Hobbie. Correct! I have a Carver c-500 to start next.
Looks very similar to the inside of PL400. Does anyone mind if I start on this amp with the same help from everyone? Do I continual with this thread or start new thread?
Gary

 

[mlucitt]

Start a new thread, you will get better visibility, until someone hijacks it...

 

[gene french]

lololol