[BC] AM Stereo

[Rich Wood]

I remember this very, very well. Two guys walked in and one actually 
paid attention. Leonard had been trying to get them to listen for quite a while

They finally showed up. Both were Delco engineers. I recall they had 
"oops-I-think-we-made-a-mistake" looks on their faces. When they 
regained their composure they said that adding five cents to a 
radio's design would hurt profits. That's what they said it would 
cost to add the Kahn system. They were looking at the total cost for 
all radios made by the company, not what little extra each receiver 
would cost. It seemed to me they were intellectually bankrupt way 
back then. No bailouts then.

Rich

------ At 05:24 PM 11/30/2010, Bob Tarsio wrote: -------

>Rich probably remembers this because we worked for Leonard in the 
>early 80s. Kahn made a really nice demodulator that accepted the 10 
>MHz IF from a Potomac Instruments AM receiver. When coupled with 
>that front end the Kahn decoder which had a wide band mode that went 
>out to at least 15 KHz also had switchable 10 KHz notch whistle 
>filters. This was before the NRSC curve adoption and when that 
>decoder was used with the whistle filters in really worked great at 
>night. We did a demo in a hospitality suite at at the old NRBA radio 
>show with this setup and I remember a guy comes into the suite and 
>stands in front of the setup and listens for a couple of minutes. He 
>turns to us and says "yeah this a great demo of a local FM station 
>but how about switching it to AM?" To which we said this IS AM! It 
>was that good.
>
>Regards,
>
>Bob
>