Thermistor for Aleph 3 (Inrush current)

Miles Teg · 19th September 2001, 10:09 PM

Can you give me the species of the thermistors used in Aleph 3, I know how it's works but somme info lake to calculate myself.
TH1 & TH2

Nelson Pass · 19th September 2001, 11:37 PM

We use the Keystone CL60's, Digikey # KC006L-ND

Miles Teg · 22nd September 2001, 08:55 PM

Oh! Thanks to Mr Pass for the help. But as I'm French the my best electronic dealer was RadioSpares, so for the Keystone from Digikey, I can't find it. And buy them by internet it's out of subject.

I'm sure that one little explication on the thermistor and there species in Aleph must be most usefull.
Thanks.

cp642 · 22nd September 2001, 09:12 PM

Miles,

Specs for the thermistor CL60 recomended by mr. pass are as follows

1. 10 ohms at 25 degrees C ( ambient )
2. Max steady current - 5 Amps

You might want to find one of a similar rating. A good brand to start with is Rhopoint, # SG40

cp642

Miles Teg · 23rd September 2001, 09:34 PM

Oh well, cp642. You give the temp at 25°. But what is the evolution in temp ? Negative or positive ? (CTN, CTP)

Miles Teg · 23rd September 2001, 09:52 PM

Oh sorry ! After reflection it seems to be obvious. I think the impedance must increase with the temperature. I post too fast.

cp642 · 24th September 2001, 01:58 AM

as a matter in fact, the impedence decreases with the rise in temp.

Pete Fleming · 24th September 2001, 12:44 PM

Beat me to it

trigon · 24th August 2002, 03:05 AM

Hi.

Can CL-70 be used for Aleph 2.

Thanks.

Trigon.

Salmacis · 26th August 2002, 11:19 AM

Sorry if this has been beaten to death, but I read the Aleph 2 service manual and got a bit confused about the TH1 which is to operate at 5 Ohm and TH2 (CL-60) which has a 10 Ohm specification.

Now the CL-40 has a 5 Ohm rating, so is it OK to use it for TH1 and CL-60 for TH2?

Thanks, and sorry about my ignorance concerning thermistors

19th September 2001, 10:09 PM	#1
Miles Teg diyAudio Member Join Date: Aug 2001 Location: Rouen, France	Can you give me the species of the thermistors used in Aleph 3, I know how it's works but somme info lake to calculate myself. TH1 & TH2 __________________ Miles Teg Le rugissement du puceron aphone

22nd September 2001, 08:55 PM	#3
Miles Teg diyAudio Member Join Date: Aug 2001 Location: Rouen, France	Oh! Thanks to Mr Pass for the help. But as I'm French the my best electronic dealer was RadioSpares, so for the Keystone from Digikey, I can't find it. And buy them by internet it's out of subject. I'm sure that one little explication on the thermistor and there species in Aleph must be most usefull. Thanks. __________________ Miles Teg Le rugissement du puceron aphone

23rd September 2001, 09:34 PM	#5
Miles Teg diyAudio Member Join Date: Aug 2001 Location: Rouen, France	Oh well, cp642. You give the temp at 25°. But what is the evolution in temp ? Negative or positive ? (CTN, CTP) __________________ Miles Teg Le rugissement du puceron aphone

23rd September 2001, 09:52 PM	#6
Miles Teg diyAudio Member Join Date: Aug 2001 Location: Rouen, France	Oh sorry ! After reflection it seems to be obvious. I think the impedance must increase with the temperature. I post too fast. __________________ Miles Teg Le rugissement du puceron aphone

26th August 2002, 11:19 AM	#10
Salmacis diyAudio Member Join Date: Feb 2002 Location: Norway	How about CL-40 for TH1? Sorry if this has been beaten to death, but I read the Aleph 2 service manual and got a bit confused about the TH1 which is to operate at 5 Ohm and TH2 (CL-60) which has a 10 Ohm specification. Now the CL-40 has a 5 Ohm rating, so is it OK to use it for TH1 and CL-60 for TH2? Thanks, and sorry about my ignorance concerning thermistors


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19th September 2001, 11:37 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	We use the Keystone CL60's, Digikey # KC006L-ND

22nd September 2001, 09:12 PM	#4
cp642 diyAudio Member Join Date: Aug 2001	Miles, Specs for the thermistor CL60 recomended by mr. pass are as follows 1. 10 ohms at 25 degrees C ( ambient ) 2. Max steady current - 5 Amps You might want to find one of a similar rating. A good brand to start with is Rhopoint, # SG40 cp642

24th September 2001, 01:58 AM	#7
cp642 diyAudio Member Join Date: Aug 2001	as a matter in fact, the impedence decreases with the rise in temp.

24th September 2001, 12:44 PM	#8
Pete Fleming diyAudio Member Join Date: May 2001 Location: Sydney, Australia	Beat me to it

24th August 2002, 03:05 AM	#9
trigon diyAudio Member Join Date: May 2002 Location: Canada	Hi. Can CL-70 be used for Aleph 2. Thanks. Trigon.

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