Another "shocking" story [message #9418] |
Wed, 16 April 2008 07:18 ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
eltumi
Messages: 26 Registered: April 2008 Location: Raleigh, NC
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Junior Member |
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I just just replaced the mid pot on my Charger. When I got home, I just placed the head on top of the cab with the amp x-isters over the edge, just in case of heat. It sounded good, I got better adjustment than before. I left it plugged in and before I went to bed, I used my finger to check the heat of the x-isters, which I had never done since I've had it. I got an electric bite from the back one. I have a 3-prong that was installed before I bought it, but I flipped the polarity switch and tried it. Doh, bit again!
When I get to work (I left my meter there yesterday), I'll be checking voltages to x-ister case as well as ground of the "new", non-factory 3-prong.
Does anyone have any ideas?
Michael
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Re: Another "shocking" story [message #9419 is a reply to message #9418] |
Wed, 16 April 2008 09:41 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
C4ster
Messages: 686 Registered: June 2001 Location: Mukwonago, WI (Milwaukee...
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Senior Member |
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If these are standard T03 metal case transistors, the case is the collector and will have 40 volts DC or more on them. If they are the typical Kustom "totem pole" arrangement and not complimentary, then only 1 or 2 will have +40 volts on it, the other 2 will be approximately 0 volts to the chassis.
Conrad
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Re: Another "shocking" story [message #9427 is a reply to message #9424] |
Thu, 17 April 2008 09:38 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
C4ster
Messages: 686 Registered: June 2001 Location: Mukwonago, WI (Milwaukee...
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Senior Member |
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I have absolutely no knowledge of Chargers or any of the later T&R. I have 100's and 200's and 1 little combo.
Conrad
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Re: Another "shocking" story [message #9428 is a reply to message #9427] |
Thu, 17 April 2008 12:05 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
chicagobill
Messages: 2005 Registered: April 2003
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Senior Member |
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No cover over the output transistors of your amp. They are located out of normal reach, so no reason to block the airflow to them.
Under current regulations, they probably would need to be covered with a insulated, grounded, heat resistant, metal grill, to keep people from being able to touch, lick or otherwise come into contact with anything that could hurt, harm, scare or otherwise threaten their safety.
I don't know if the zinc oxide nose goop is the same as heatsink grease, but I know I'd never put the Wakefield stuff I use on my nose. I hate it when I just get the stuff on my hands.
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Re: Another "shocking" story [message #9430 is a reply to message #9428] |
Fri, 18 April 2008 06:34 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) |
eltumi
Messages: 26 Registered: April 2008 Location: Raleigh, NC
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Junior Member |
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chicagobill wrote on Thu, 17 April 2008 12:05 |
Under current regulations, they probably would need to be covered with a insulated, grounded, heat resistant, metal grill, to keep people from being able to touch, lick or otherwise come into contact with anything that could hurt, harm, scare or otherwise threaten their safety.
Yeah, who'd be dumb enough to touch the darn things, huh.
I don't know if the zinc oxide nose goop is the same as heatsink grease, but I know I'd never put the Wakefield stuff I use on my nose. I hate it when I just get the stuff on my hands.
Not much difference. Check out some older movies that would have a lifeguard. I didn't watch it, but I'm sure the folks on Baywatch were too cool for that.
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