Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => AmpTools/Tech Tips => Topic started by: hesamadman on July 30, 2015, 08:10:33 am
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Welp....i finally got around to making one of these. Couldn't have come to soon either. With all of the building ive been doing WITHOUT one i was bound to make some silly mistake that would have resulted in a costly fix. My recent escapade with my OT coming loose from a temp connection could have resulted in one of those situations. Luckily it only ruined a couple tubes. With all that being said, and my new shop being away from home, I always get on the highway and say "did I turn off my iron?"
So I combined two things in one so to speak. Though they are only fed from the same power source and not connected in any other way I decided to put them on the same structure. I built a limiter with a switch/ receptacle. The switch controls the keyless fixture which feeds my receptacle just above the switch. I also put a 60min timer on a receptacle. I plug my soldering iron in there. This way.... no more worrying about forgetting to turn that thing off. Obviously i may get tired of twisting that mechanical dial every hour but I can live with that. I thought of doing some high tech receptacle controlled by my smart phone...... eh.... this will work. Heres a quick clip http://www.rdkelectricalservice.com/IMG_4730.MOV (http://www.rdkelectricalservice.com/IMG_4730.MOV)
HOWEVER.......... I CAN NOT FIND 100w BULBS!!!!! All i can find ore these 100w energy savers that are actually 75 watts. I guess they are incandescent lights? Any suggestions?
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I was able to find 300w bulbs at Lowes.
similar to the one in this link:
https://www.1000bulbs.com/product/5264/IN-0300PS35CR5K.html (https://www.1000bulbs.com/product/5264/IN-0300PS35CR5K.html)
I built a simple current limiter like the one in this video:
https://youtu.be/wRFRwOnLsZI (https://youtu.be/wRFRwOnLsZI)
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Thanks for that link. Ill check my local lowes. Your limiter is the same as mine. I just put a switch on it so I can turn it off without having to unplug it.
Thanks again.
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Yes, simple literal 100W incandescents have gone out of style. There is a law, it is not enforced, but stores did not want to be stuck with a large stock in case the law was enforced, so they stopped buying 100W simple plain incandescents.
You may find 100W incandescent "globe" lamps, the big round things used around dressing tables. "Decorative and specialty" bulbs are exempt from the law. Little flame lamps are 7W-25W, the small Globe lamps are 45W-60W, but there is a Large Globe at 100W.
The "100W equivalent" *Halogen" (90W-75W actual) is reasonable for smaller amplifiers.
The >100W lamps are still widely available as simple incandescent. H-D sold me several boxes of 150W and 200W plain old incandescent for my garage.
At the chicken-feed store (also many hardware stores) you can buy Heat Lamp bulbs. Big reflector bulb with red coating.
Should be 250W-300W. There are also silly "energy saver heat lamps" which only do 150W. In chick-raising, this leaves your chicks cold; but a good size for general amps.
I *thought* that at 300 Watts (or above 300W??) the Code required "Mogul" sockets, which are larger than "regular edison" sockets. Large stores have mogul sockets but may not know where they hide them.
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Yes, simple literal 100W incandescents have gone out of style. There is a law, it is not enforced, but stores did not want to be stuck with a large stock in case the law was enforced, so they stopped buying 100W simple plain incandescents.
You may find 100W incandescent "globe" lamps, the big round things used around dressing tables. "Decorative and specialty" bulbs are exempt from the law. Little flame lamps are 7W-25W, the small Globe lamps are 45W-60W, but there is a Large Globe at 100W.
The "100W equivalent" *Halogen" (90W-75W actual) is reasonable for smaller amplifiers.
The >100W lamps are still widely available as simple incandescent. H-D sold me several boxes of 150W and 200W plain old incandescent for my garage.
At the chicken-feed store (also many hardware stores) you can buy Heat Lamp bulbs. Big reflector bulb with red coating.
Should be 250W-300W. There are also silly "energy saver heat lamps" which only do 150W. In chick-raising, this leaves your chicks cold; but a good size for general amps.
I *thought* that at 300 Watts (or above 300W??) the Code required "Mogul" sockets, which are larger than "regular edison" sockets. Large stores have mogul sockets but may not know where they hide them.
what would you say is a good wattage bulb for 100wat amps? not that i have any but just in case. 15-50 generally on bench.