Derek92994's 700 Ser II White Oak conversion

[derek92994]

Just Jokes of course Lee heh heh heh

 

[laatsch55]

Ah......maybe a valid concern as a few have gone up in smoke.......on purpose ....some not.

 

[derek92994]

Ah......maybe a valid concern as a few have gone up in smoke.......on purpose ....some not.

Nature of the beast, with so much involved in these units =).

 

[laatsch55]

It's always been an assembly issue not a design issue. Joe is impeccable ( there's that word again) in his design applicatipns. Sometimes I have screwed up the implementation of his designs....

 

[derek92994]

It's always been an assembly issue not a design issue. Joe is impeccable ( there's that word again) in his design applicatipns. Sometimes I have screwed up the implementation of his designs....

I knew that.

 

[derek92994]

From what I see, the complexity of these units is just incredible, the amount of wires, components, connectors etc. It would be very easy for a mistake to be made. Human Nature.

My main weakness with re-assembling tape decks would be leaving the counter belt off, I did this 5 TIMES! and had to pull the whole mech out of most of them to put it back on.

With the nakamichi 480 I blew the crap out of the recording section when trying to replace faulty components on the board (my soldering sucks), it literally smoked. I'm thankful its still a great playback only deck

 

[derek92994]

Don't go blowing the Crites with this WOPL now Lee =)

 

[laatsch55]

If I let the voice coils cool between songs when doing Mach 9 it's all good. I have yet to simply overpower one. It's a heat and melt thing..

 

[derek92994]

If I let the voice coils cool between songs when doing Mach 9 it's all good. I have yet to simply overpower one. It's a heat and melt thing..

How long do they take to cool, and can you smell anything when they heat up? Also how many db is mach 9?

 

[laatsch55]

I don't know why. Suggested fuse size is 1.5 ...I have blown enough 5 ampers that I have finally bypassed them.

 

[derek92994]

I don't know why. Suggested fuse size is 1.5 ...I have blown enough 5 ampers that I have finally bypassed them.

Fuse going between amp and speakers or fuses in back of WOPLs?

 

[laatsch55]

Woofer fuses in the crossovers.
.

 

[derek92994]

Woofer fuses in the crossovers.
.

Sounds like you have better judgement at what the woofs can take than the fuses do =) Good fun.

 

[laatsch55]

How long do they take to cool, and can you smell anything when they heat up? Also how many db is mach 9?

No. They are totally enclosed. MACH 9 is north of 125db. I cool it off for about 5 minutes..

 

[derek92994]

Should I put fuses on the positive wires going to the JBLs?

 

[laatsch55]

Sounds like you have better judgement at what the woofs can take than the fuses do =) Good fun.

Sometimes...

 

[laatsch55]

Charging the power supply caps ....

 

[laatsch55]

Should I put fuses on the positive wires going to the JBLs?

Ones as good as the other...

 

[laatsch55]

Before plugging in the power supply to the cord going to the amp, ya gotta bleed the caps.......DOH!!!....


Cord is 10-4 Sojw almost smoked my bleed resistor.....DAYAM....140,000 uf is a lot of juice....

 

[laatsch55]

Meters on the bias test points, bout to bring it up....