-----Original Message-----
From: Ian White, G3SEK <G3SEK@ifwtech.com>
To: amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
Date: 27 March 2001 19:05
Subject: Re: [AMPS] SB-220 Amplifiers and Garage Sales!!
>
>Rich Measures wrote:
>>>
>>>Is it quite that simple? The suppressor is part of a *series* circuit
from
>>>the anode through the blocking cap, connecting wires and tune cap so Rs
is
>>>the number that counts. In a typical layout, the connecting leads swamp
the
>>>Ls (and therefore Lp) of the suppressor.
>>>
>>What is "Ls" and "Lp" Steve?
>
>When this show was playing about two years ago, we went through all this
>stuff about equivalent series and parallel resistances and reactances:
>Rs, Rp, Xs, Xp and all their friends and relatives.
>
>You must get around to replacing that memory backup battery, Rich...
>
>73 from Ian G3SEK
If Lp and Rp are the equivalent parallel resistance and inductance of a
network, then Ls and Rs are the equivalent series resistance and inductance.
At any frequency, you can describe and L/R combination in either way. You
convert between them according to which matches the circuit topology at the
point you are analysing.
73, Steve
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