it was a rebuild on a slab of a Plainfield St Mary's Immaculate
catholic church blown down by a tornado. 1990 ...killed 29 !!!!
On 12/25/2023 8:40 PM, Jim Brown wrote:
Thanks Bill. I think the incident I remember was at a south-suburban
church. Your memory may be better than mine.
For those reading the mail, Bill was a manufacturer's rep for a bunch
of top pro audio companies, including some pretty nice test equipment.
Both of us had previously worked in broadcasting. We were good friends
in Chicago; about 15 years ago, we bailed from the city that Daley #2
destroyed, Bill to W. PA, me to NorCal.
73, Jim K9YC
On 12/25/2023 4:57 PM, bill steffey ny9h wrote:
*IF THAT WAS ME *... it was not from the wireless mic receiver; BUT
unbelievably it was coming from an audio mixer that had a dc-dc
converter gone wild.... I remember it well.... We (you and I
sniffed it with my then crude SA) and then the factory flew up 2 guys
with the legit spectrum analyzer. ...and no one could believe
it...till they saw it .. sweeping across the input of the wireless
receiver..That sounded great on the NEW churches PA system.
still have two of those auto-mixers from 30 years ago...
On 12/23/2023 5:05 PM, Jim Brown wrote:
On 12/23/2023 1:28 PM, k1ttt.dave@gmail.com wrote:
........, we traced that sort of issue to instability in the preamp
for wireless microphone receivers. It helped that the contractor on
the project was a ham.
73, Jim K9YC
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