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Old 24th November 2012, 01:27 AM   #1
kymakid is offline kymakid  United Kingdom
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Join Date: Nov 2012
Default Hello from Birmingham, UK

Thanks to Mr Pass I found this site after starting an F5 amplfier project which is not yet complete, when it is I'll post some pics. To get the heatsink down to a reasonable size & cost, I use a cooling aggregate (fancy term for heatsink, cowling & fan) that is rated at 0.06 Deg. C/W. Fan noise is a problem with these coolers so I will use an Arduino controller, temperature sensor, and a PWM drive to the fan. Power supplies are two massive Farnell 300 W output linears, each has six x 2N3055s as the series pass element. The Arduino will also monitor the PSU rails for any significant difference, if one rail collapses the power input to both PSUs will be removed.
At the moment it's chassis work that's holding me up, I get occasional access to a friend's workshop.

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Old 24th November 2012, 02:10 AM   #2
planet10 is offline planet10  Canada
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Location: Victoria, BC, NA, Sol III
Hello from Birmingham, UK
Welcome to the forum.

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 24th November 2012, 08:36 PM   #3
Cal Weldon is offline Cal Weldon  Canada
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Welcome to diyAudio.
planet10 needs your help:
Let's help Ruth and Dave
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