Disassemble PL909 transistors

[Menno1000]

Hi all,
How do you guys dismount the original PL 909 transistors? With what kind of tool? Metric wrenches wont fit, somewhere in between 6mm and 7mm. And also the space to turn is limited.
Curious how you professionals deal with it..
Cheers!

 

[Hexis22]

SAE 1/4” thin walled socket or nut driver.

Remember, these things were assembled in the US in the ‘70’s…

 

[Mohawk]

Hi all,
How do you guys dismount the original PL 909 transistors? With what kind of tool? Metric wrenches wont fit, somewhere in between 6mm and 7mm. And also the space to turn is limited.
Curious how you professionals deal with it..
Cheers!

Lol ! No metric fasteners back then !

 

[J!m]

I mount boards with 4-40 screws…

 

[Menno1000]

SAE 1/4” thin walled socket or nut driver.

Remember, these things were assembled in the US in the ‘70’s…

Thanks you all!
So this exactly the screw bit standard. I used a screw bitadapter in reverse, worked well!

 

[wattsabundant]

Xcelite 99 magnetic 1/4" nut driver and extension. The magnet holds the screw. Handle is separate

 

[mr_rye89]

I think I used my Ridgid 1/4" impact driver with a long 1/4" bit when I tore down the 700, I don't give a shit about the transistor sockets tho

 

[Menno1000]

Thanks all. It worked whit fine a long 1/4" nutdriver.
What a difference these MJ21196G make..

 

[Menno1000]

In addition a question. Im stiil on original driverboard.

Can i replace the RCA410 for a MJ21196 in row 1 column 2 and 4 (seen from the back, left to right, binding post to transformer) ? WO states it is recommended for WOPL board but is it allright for a normal board too?

 

[laatsch55]

No.
.
Unless your stock board is full comp.