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21. Re: LF: 3C85 (score: 1)

Author: "Hans-Albrecht Haffa" <haffaha@web.de>

Date: Fri, 26 Sep 2003 22:13:28 +0200

Lieber Heinz, die Hersteller des Materials 3C85 sind Valvo, Philips und derzeit wieder Ferroxcube. Für Langwelle empfehle ich aber sich das Datenblatt aus dem Internet zu holen und ein Amidon-Materia

/rsgb_lf_group-archives/html/rsgb_lf_group/2003-09/msg00067.html (9,064 bytes)

22. Re: LF: Pot cores (score: 1)

Author: "Hans-Albrecht Haffa" <haffaha@web.de>

Date: Wed, 24 Sep 2003 22:13:55 +0200

Dear Mike, yes it seems to me as if "Pot cores " got its name by a kind of cooking set. i. e by its shape. There are EE cores, rod cores etc. But I dont recomend pot cores for new designs. Take a ETD

/rsgb_lf_group-archives/html/rsgb_lf_group/2003-09/msg00068.html (9,749 bytes)

23. LF: Remember: Lowfer Activity Day on 27.th/28th Sept. 2003 (score: 1)

Author: "Hans-Albrecht Haffa" <haffaha@web.de>

Date: Wed, 24 Sep 2003 22:01:48 +0200

Dear Lowfers, please remember Our Acty-Day next weekend. Looking forward to Your sigs! Hans-Albrecht DK 8 ND > German Long Wave Activity Day of the DARC district Wuerttemberg at the> 27./28. Septembe

/rsgb_lf_group-archives/html/rsgb_lf_group/2003-09/msg00069.html (11,194 bytes)

24. LF: Re: Dummy-Load on LW 50 Ohm/ 60 Ohm/ 75 Ohm (score: 1)

Author: "Hans-Albrecht Haffa" <haffaha@web.de>

Date: Fri, 28 Nov 2003 23:18:36 +0100

Dear Lowfers, the reason for a characteristic resistance of coaxial cables is based on material constants and by finding a minimum of the maximum field strenth in the cable. This is true as well for

/rsgb_lf_group-archives/html/rsgb_lf_group/2003-11/msg00062.html (11,982 bytes)

25. Re: LF: Dummy-Load on LW (score: 1)

Author: "Hans-Albrecht Haffa" <haffaha@web.de>

Date: Tue, 11 Nov 2003 17:21:01 +0100

Dear Lowfers, for my experiments I use commercial dummy loads, like my Rohde & Schwarz RD1/60, oil filled, 1 kW /60 Ohm with monitor output attenuation of about 40 dB with Dezifix-connectors (the sex

/rsgb_lf_group-archives/html/rsgb_lf_group/2003-11/msg00063.html (11,053 bytes)