This week I've been putting a lot of hours in my amp project, resulting in an aching back
So, I came up with a simple solution, to working on amps that are a little too heavy to lift.
The boards takes 100kg+, should do for most of us
Ok, the amp has to stay on the floor, but still, it's possible to move it
Magura
So, I came up with a simple solution, to working on amps that are a little too heavy to lift.
The boards takes 100kg+, should do for most of us
Ok, the amp has to stay on the floor, but still, it's possible to move it
Magura
Attachments
Of course, there is another solution to amplifiers that give you a back ache...
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Steve Eddy said:Of course, there is another solution to amplifiers that give you a back ache...
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Yeah been there, I too had a walkman in those days
Magura
An externally hosted image should be here but it was not working when we last tested it.
I wish, but the Mrs. won't allow such in the living room
How about the bedroom?
MJL21193 said:
That's where mine is...
But my solution is intended for amps, not the Mrs.
Magura
Oh, by the way, I purchased a power coil winder off eBay last week. That should end the upper body strain/contortions I go through to wind chokes for my amplifiers.
While my coils aren't nearly as huge an Magura's I hope the winder lives up to my expectations.
I've been scouring all the You-tube videos on coil winders. This will be a first for me...
Any suggestions on the best coil winding techniques?
Oh, and that amp I'm building is only 1 watt per channel... That's what I call art!
While my coils aren't nearly as huge an Magura's I hope the winder lives up to my expectations.
I've been scouring all the You-tube videos on coil winders. This will be a first for me...
Any suggestions on the best coil winding techniques?
Oh, and that amp I'm building is only 1 watt per channel... That's what I call art!
DaveM said:What kind of monster weighs 275 lbs and only produces 1 watt per channel?
John's discman, when held by John
Magura
carpenter said:
Any suggestions on the best coil winding techniques?
Practice, and maybe a little practice, if practice wasn't adequate....Sorry
Anyhow, drop me a line if it's causing you too much trouble.
Magura
Magura said:
John's discman, when held by John
Magura
Funny!!! HHaaaaaaaaa........
The first watt is the most important watt an amplifier can make, or so they say.
I agree. I drive an open baffle line array and it generates plenty of acoustical power.
If I use larger conductors, I'm currently using a pair of 11 AWG wires in parallel, then I can get more voltage swing without overheating the choke. The choke currently idles at 90C.
carpenter said:
If I use larger conductors, I'm currently using a pair of 11 AWG wires in parallel, then I can get more voltage swing without overheating the choke. The choke currently idles at 90C.
Heatsinking the inductor is the ticket.
Magura
Magura said:
Heatsinking the inductor is the ticket.
Magura
Oooooooooooh... educate me. I'm using powdered iron E cores. Do you just epoxy an aluminum heat sink to the core? BYW, the wire is 40C hotter than the core... weird. Of course, that's only after 2 hours of play time. 8 hours may heat the core to match the wire.
carpenter said:
Oooooooooooh... educate me. I'm using powdered iron E cores. Do you just epoxy an aluminum heat sink to the core? BYW, the wire is 40C hotter than the core... weird. Of course, that's only after 2 hours of play time. 8 hours may heat the core to match the wire.
Something isn't right, when things gets that hot.
May I repeat: air core!
Can't help you with iron core stuff, too many unknowns.
Magura
Magura said:
Something isn't right, when things gets that hot.
May I repeat: air core!
Can't help you with iron core stuff, too many unknowns.
Magura
Lots of amperage (around 8 amps per leg) and the 0.4 ohm choke windings generate plenty of heat. I'm only running 8 volts through the system. 3.2v is consumed by the choke. We're talking about 50 watts. That's enough to make a transistor/heat sink sizzle.
carpenter said:
Lots of amperage (around 8 amps per leg) and the 0.4 ohm choke windings generate plenty of heat. I'm only running 8 volts through the system. 3.2v is consumed by the choke. We're talking about 50 watts. That's enough to make a transistor/heat sink sizzle.
So 16A for getting 1W ?
Magura
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