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ljozsef 4th February 2004 11:01 AM

CL-60 Inrush Current Limiter
Hi all,

The CL-60 appears in the original NP-Alephs.
Is this generally applicable for the 230 VAC mains, too? Or, european users should get for their lower currents another one?
My second question were, could I find anybody from Germany with a surplus of 2 pieces and reasonable offer?

Thanks in anticipation,

cyclotronguy 4th February 2004 03:55 PM

The CL-60 thermistors are negative temperature coefficient devices with a cold resistance of approximately 10 ohms. Any such device with the requisite ampacity rating for the task at hand will substitute.


Nelson Pass 4th February 2004 04:57 PM

It works fine on 230, although these days some of our
products have an individual thermistor on each of the
two primary windings, so they are in parallel at 120V and
series at 240V, which gives identical characteristics.

ljozsef 4th February 2004 07:02 PM

Thanks for the explanations!

Now I should find a pair; shipping from Digikey to Hungary would be a stupid decision, I think. Inside Germany were not too expensive - please, deutsche Kollege, help me with your surplus!


Peter Daniel 4th February 2004 07:19 PM

I can ship to you 2 pcs of CL-70 (15 ohm cold resistance, which actually works better with 220V) free of charge. Just send me your address ;)

ljozsef 4th February 2004 09:40 PM

Peter, it's great!

You are not only big as technician... You carry other values, too.

Details in mail;
best regards,

D3 6th February 2004 07:41 AM

Hi, just a quick question (please be tollerant I am not as technical as alot on this forum)

Am I right in understanding that these thermistors .... limit the intial current surge that a large Torroiadial can impose (1000va)
on intial switch on.

On the Aleph-x is there any chance of speaker thump on switch on? Will this reduce the effect????

Finally, on high quality psu I built for Ben Duncans Amp-o2
the power primarys were double clamped with VDR' this good practice on a large class 'a' amp????

Sorry for all the qustions.......

Richard, Bolton (nr Manchester) uk


ljozsef 11th February 2004 07:22 PM

Guys, I am happy!

We have here around a great Mr.Moderator!!! Were solved my biggest problem, "By Air Mail" arrived the promised CL-70 pair.


Best wishes from Hungary,

Nelson Pass 11th February 2004 09:40 PM


Originally posted by D3
On the Aleph-x is there any chance of speaker thump on switch on?
The Aleph X's (or at least mine..) are not noted for thumps, and
don't have any circuits incorporated to prevent them or
disconnect the speaker.

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