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Re: 4 x 1 Ohm = 16 Ohms (sometimes) [message #9113 is a reply to message #9107]

Tue, 26 July 2005 05:54

Damir
Messages: 1005
Registered: May 2009

Illuminati (2nd Degree)

Not dumb, we know that impedance of the speaker is not a constant resistor, but it changes with frequency. Properties of the OPT (Lp - bass frequencies, Lw & Cw high frequencies, etc.), and tube(s) connected (rp) also impact the frequency response.
But, simplified - we can observe speaker like resistor, and primary load Ra like constant resistance, 3,5kOhms in this example, on some "middle" frequencies of interest.

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[Message index]

		4 x 1 Ohm = 16 Ohms (sometimes) By: Damir on Mon, 25 July 2005 15:01
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Thermionic on Mon, 25 July 2005 15:38
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Manualblock on Mon, 25 July 2005 17:01
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Damir on Tue, 26 July 2005 05:54
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: chana on Mon, 25 July 2005 20:34
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Damir on Mon, 25 July 2005 23:43
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: chana on Wed, 27 July 2005 17:27
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Damir on Tue, 26 July 2005 06:00
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Thermionic on Tue, 26 July 2005 11:53
		Re: 4 x 1 Ohm = 16 Ohms (sometimes) By: Damir on Tue, 26 July 2005 14:31

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