Hello
I have a Question about the thermostatic Switch in Aleph Amps
Is it a "you canot kill this Amp even if you take it to the Dessert and listen to your music whith 60 degree outside tempratur" decision, or is it " I dont want you to burn down your House if something fails" decision ?? 😎
In other words, is it save to leave it out or is it nessesary to have it ???? And what cold be the failiure where I need it ???
I have a Question about the thermostatic Switch in Aleph Amps
Is it a "you canot kill this Amp even if you take it to the Dessert and listen to your music whith 60 degree outside tempratur" decision, or is it " I dont want you to burn down your House if something fails" decision ?? 😎
In other words, is it save to leave it out or is it nessesary to have it ???? And what cold be the failiure where I need it ???
The answer is both.
With the proper fuse value, it should not be possible to
ignite something like cheesecloth (the standard material)
under any failure mode in a properly designed product.
This of course presumes that the consumer has not put a
20 amp fuse in the product.
At the same time, we have been able to confirm that amplifiers
do not tend to blow up when sinks reach 75 deg C., which is
the value we specify.
We do commonly encounter consumers who run the product in
a closed box or on top of another one or more of our amplifiers.
With the proper fuse value, it should not be possible to
ignite something like cheesecloth (the standard material)
under any failure mode in a properly designed product.
This of course presumes that the consumer has not put a
20 amp fuse in the product.
At the same time, we have been able to confirm that amplifiers
do not tend to blow up when sinks reach 75 deg C., which is
the value we specify.
We do commonly encounter consumers who run the product in
a closed box or on top of another one or more of our amplifiers.
Thermostatic Switch@75C
I try to find Thermostatic Switch@75C part number in google.but can not find anything.Any body provide this part detail part number or manufacturer?very thanks.
I try to find Thermostatic Switch@75C part number in google.but can not find anything.Any body provide this part detail part number or manufacturer?very thanks.
Thermostatic isn't a company, it's just saying that the switch functions like a thermostat. Parts catalogs abound in such things. Use any equivalent part that suits you.
Grey
Grey
Very thanks Grey.I found the detail in other thread
http://www.diyaudio.com/forums/showthread.php?s=&threadid=24957&perpage=10&highlight=&pagenumber=2
Regards
Leo
http://www.diyaudio.com/forums/showthread.php?s=&threadid=24957&perpage=10&highlight=&pagenumber=2
Regards
Leo
Look in Mouser under 'thermostat'. They are made by Stancor.
Thermal cutouts are hard to find anymore because everyone is reducing parts count, using electronics monitoring of heat or just don't care!
(Page 1624 of catalog 629, search for 'Stancor Snap Action Disc Thermostats').
Thermal cutouts are hard to find anymore because everyone is reducing parts count, using electronics monitoring of heat or just don't care!
(Page 1624 of catalog 629, search for 'Stancor Snap Action Disc Thermostats').
Sorry to bump that old thread.
I currently build Aleph_J from my old Aleph_4 chassis and parts.
I use thermostatic switch, but since the amp is in 2 cases, I end up with no possibility to put it on mains ( 230V here ).
I happen to put it on the 24V rectified rails. I chose the CCS side, V+; instead of V-, because I thought it might be risky.
Assuming all the CCS are on V+ on the Aleph design, there is nothing dangerous for the speaker in case the thermostatic switch breaks the V+ rail ?
Thanks for your input.
Best,
nAr
I currently build Aleph_J from my old Aleph_4 chassis and parts.
I use thermostatic switch, but since the amp is in 2 cases, I end up with no possibility to put it on mains ( 230V here ).
I happen to put it on the 24V rectified rails. I chose the CCS side, V+; instead of V-, because I thought it might be risky.
Assuming all the CCS are on V+ on the Aleph design, there is nothing dangerous for the speaker in case the thermostatic switch breaks the V+ rail ?
Thanks for your input.
Best,
nAr
you'll kill your speakers , sooner or later
break a leg purposely , put longette on , just as precaution for breaking arm .......
break a leg purposely , put longette on , just as precaution for breaking arm .......
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I'm not able to translate Zen Mod language efficiently. 😱
Do you mean I'd better use longer wires from the 230V to feed the thermostatic switch for safe operation ? 😕
Best,
nAr
dunno what you are going to use - longer wires for 220 ( I'll not do that ) or stand by circ ( with relay for 220Vac and small xformer , then relay coil through thermal switch) ....... but using TS contacts for routing several A of DC is big nono , at least in my book
use the temp switch to activate a protection scheme.
That protection scheme could have a variety of inputs.
Some of the triggers may operate better if they latch ON on trigger and require a mains power OFF to reset.
That protection scheme could have a variety of inputs.
Some of the triggers may operate better if they latch ON on trigger and require a mains power OFF to reset.
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