Indigo Bash amp in Klipsch Sub10. specs on diac

[fastline]

I stumbled into some great info here on the problems with these amps and hoping some guys are still around? I am trying to spec the problematic D11 diac on the daughter driver board for the PSU mosfets? It is now black and cannot read it.

If anyone has experience with these, I might have a few other questions.

 

[JonSnell Electronic]

Diacs.
BR100 and BR103 were the main two produced.
Made by Philips, they are a bi directional trigger and work similar to a low voltage neon.
When the voltage reaches the threshold voltage, they go short circuit for a split second, producing a pulse, used mainly in light dimmers and motor controllers.
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BR100/03 Datasheet pdf - BR100/03; Silicon Bi-directional Trigger Device - Philips

 

[fastline]

I do understand what a diac is. I am more interested to know if someone has the proper spec for a replacement or the means to test is scrap amp? Someone has mentioned a DB6 which is a 60V trigger, and another mentioned a DB4, which is a 40V trigger. That will make a radical difference in an oscillator circuit.

 

[JonSnell Electronic]

Diacs are not used to oscillate.
The proper spec is included in my last post.
A DB6 is an Aston Martin!
Please enlighten me.

 

[Elvee]

Diacs can be handy in simple relaxation oscillators.

From the schematic, if available, it should be easy to guess the exact function.
Determining the exact specifications could be trickier.

 

[fastline]

Klipsch RW-10 Blowing Fuses - Repair Thread - Home Theater - The Klipsch Audio Community

Here is a thread where that is stated.

There is another thread on this site where someone supposedly tested one and indicated it opened at 40V, indicating it as a DB4.

Shanghai Sunrise Electronics - datasheet pdf

Here is the data sheet for the Aston Martin.

 

[ZenLunatic]

if we are talking about the same thing, pretty positive that it’s a DB6…at least that is what it is on my BASH amp out of my Focal sub. In case anyone is still confused as to which diac was in there originally. See photo.

 

[ZenLunatic]

I stumbled into some great info here on the problems with these amps and hoping some guys are still around? I am trying to spec the problematic D11 diac on the daughter driver board for the PSU mosfets? It is now black and cannot read it.

If anyone has experience with these, I might have a few other questions.

It’s a DB6, rated at 56v-70v, or 63v+-7v.