Message-ID: <375D7AB4.B9A5F248@bltinc.com>
Date: Tue, 08 Jun 1999 16:19:00 -0400
From: Ed McCauley <emccauley@bltinc.com>
Organization: Bottom Line Technologies Inc.
To: "lancair.list@olsusa.com" <lancair.list@olsusa.com>
Subject: RE: FM/Cassette Deck Installation
Mime-Version: 1.0

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Bill,

I leaped before I looked... The other posters are absolutely correct:
 By using a simple turns ratio transformer to match your impedance,
 you _could_ generate some impressive voltages.  (I'll leave the
 qualifications on "could" aside).

I really feel terrible that I didn't think your situation through
 before giving you a response.  My apologies.  

The idea of series resistors is an acceptable approach but doesn't exactly
 solve your impedance matching requirement.  Another aspect to consider,
 that has been alluded to but not expressed directly, is the voltage 
parameters.  The voltage presented across an 8 ohm load (driven by
 the FM/Cassette unit) will vary based on the power output of you
 FM/Cassette deck.  At the same time, your audio panel will have a very
 definite input voltage (range) requirement.  Exceed it and you distort,
 exceed it a lot and you _could_ do damage.  Too low a voltage and
 the volume is inadequate.

I checked Sporty's and AS and couldn't believe that they don't carry
 such a converter.

I'm in the process of researching a COTS (Commercial off the shelf)
 solution for you.

-Ed Mccauley
Lancair IVP
Milford, NJ

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