[Amps] 'red' cores versus 43 cores

[Carl]

What are you trying to do as it relates to amplifiers?

Lets start with something simple instead of trying to cover A-Z in one 
breath.

Powdered iron 2 Mix Micrometal red cores have been used for decades in 
amplifier tank circuits for starters.

Fairite Corp 43 Mix ferrite is generally used for broadband circuits 
such as sleeve baluns and RFI suppression. Ferrites generally dont 
behave very well when run at high power, especially when a high VSWR is 
present.

Carl
KM1H



----- Original Message ----- 
From: "Dan Sawyer" <dansawyer at earthlink.net>
To: "Amps" <Amps at contesting.com>
Sent: Saturday, March 28, 2009 8:00 PM
Subject: [Amps] 'red' cores versus 43 cores


> Is there a straightforward practical or operational description of the
> difference between 'red' cores and 43 material. The magnetic 
> differences
> are large. However, the 'red' cores are used in low power mixers and 
> the
> 43 cores are used in rf power transformers for similar frequency 
> ranges.
>
> What would happen if a mixer were made from a 43 core?
> What would happen is an output transformer were made from 'red' cores?
>
> Thanks Dan kb0qil
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