Hi LF-ers...
I have a problem with 3C85 toroids...it's unpossible to buy it in
Slovakia. But a lot of Amidon and Pramet (Czech company) toroids are
available. I think an equivalent of 3C85 is Amidon FT-xx-77 (xx is a
diameter, for examp. FT-140-77 is diameter 36,5mm). Here are a lot of Pramet
H20 toroids available for a very good price. I have also parameters of this
material, so if you have interest, I can send it to you to compare it with
3C85.
73 de Rich OM2TW
-----Original Message-----
From: Steve Rawlings [SMTP:[email protected]]
Sent: 30. január 2001 23:59
To: LF Group
Subject: LF: 3C85 Material: Obsolete?
Dear All,
I have received an Email from Wilfried DL5SWB reporting that the
link no longer works from my web site to the Philips 3C85 data
sheet previously at:
http://www.acm.components.philips.com/pdf/3c85.pdf
Following their use by David Bowman in the G0MRF 136 kHz Power
Amplifier, toroidal cores of Philips 3C85 material have become
the preferred core material for many LF experimenters.
Wilfried writes:
> I found on Your Website a link to download the 3c85.pdf. But it
> isn't still available. I guess this type of material will not
> produced any longer by Philips or now by Ferroxcube. I got the
> new catalogue from http://www.ferroxcube.com without any 3C85
> mentioned. There are more new ones. Perhaps You know, what new
> material is good for 136 kHz.
> It would be nice, if You could send me the 3c85.pdf by eMail.
I wonder if anyone has stored a copy of 3c85.pdf that they can
send me? If so, I will forward it to Wilfried.
Also, does anyone know a suitable alternative to those magical
3C85 cores having a diameter of 25; 42; and 58 mm?
Regards to all,
Steve GW4ALG
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