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Old 19th August 2010, 01:04 AM   #1
jbyrns1993 is offline jbyrns1993  United States
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Location: Northern Cook Co., IL, USA
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Hi All, I'm Johnny Byrns, grandson of John W. Byrns, who owned the Byrns Oil Company, which supplied fuel & heating oil to Northern IL and all of WI. I am an electronics enthusiast, and have been around electronics since I was born, since my dad was an electrical engineer for Motorola. He helped design the first cell phone. I have an extensive collection of vintage and new audio equipment, some of which is modified from its original design by me. I have built home-brew amplifiers out of the guts of old PC speakers and such. My most recent project was a 2.1 stereo system amp board built in a 56KB/s modem enclosure. I put new binding posts for speaker connections, and blew a cruddy 4 inch speaker on its sub output. I have just in the last 6 hours acquired a Sundown Audio SAZ-1500D mono-block car amplifier. It needs new power supply MOSFETs and a couple new PNP power transistors for the amplifier side. It cost me $40 to get, saying I could repair it easily. It is double sided soldering, so it will be a challenge, even for an experienced circuit builder like me.
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Old 19th August 2010, 05:27 AM   #2
planet10 is offline planet10  Canada
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Location: Victoria, BC, NA, Sol III
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Welcome to the forum Johnny.

community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
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Old 23rd August 2010, 04:41 PM   #3
Cal Weldon is offline Cal Weldon  Canada
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Location: Near Vancouver
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Hello Johnny and welcome.
planet10 needs your help:
Let's help Ruth and Dave
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