I remembered I just bought an infrared for custard, so I fired it up this morning. The numbers weren't bad, but it also didn't feel nearly as warm as it did yesterday (house was about 77 yesterday).
The case of the PSU was 107. The field coil housing was 85 or so. But definitely felt cooler to the touch than it had.
I remembered I just bought an infrared for custard, so I fired it up this morning. The numbers weren't bad, but it also didn't feel nearly as warm as it did yesterday (house was about 77 yesterday).
The case of the PSU was 107. The field coil housing was 85 or so. But definitely felt cooler to the touch than it had.
Is that Celsius or Fahrenheit? You'll want to check the infrared on that; I'm assuming the latter since you were using it for cooking. If so then those temperature are nominal.
Is that Celsius or Fahrenheit? You'll want to check the infrared on that; I'm assuming the latter since you were using it for cooking. If so then those temperature are nominal.
I remembered I just bought an infrared for custard, so I fired it up this morning. The numbers weren't bad, but it also didn't feel nearly as warm as it did yesterday (house was about 77 yesterday).
The case of the PSU was 107. The field coil housing was 85 or so. But definitely felt cooler to the touch than it had.
I did order the Coleman regulator kits and have them sitting in my soldering box. I've had a lot going on and finishing that project isn't going to happen anytime soon.
Zayin Audio is making me 2 custom adjustable voltage SupraRegs for my AC-Xs. This is a double leap of faith as I haven't seen let alone listened to a system with a Zayin Audio SupraReg power supply and it's a custom job.
I'll report back once I get it and have some time on them.
I'm looking to sell some of my ice cream in my food truck but I usually do raw eggs and make the best damn ice cream, it's been a bit of a job to get a recipe I like without raw eggs
I did order the Coleman regulator kits and have them sitting in my soldering box. I've had a lot going on and finishing that project isn't going to happen anytime soon.
Zayin Audio is making me 2 custom adjustable voltage SupraRegs for my AC-Xs. This is a double leap of faith as I haven't seen let alone listened to a system with a Zayin Audio SupraReg power supply and it's a custom job.
I'll report back once I get it and have some time on them.
Please do report back. I now have two new pairs of field coil drivers sitting waiting for me to build the Coleman's, and I just don't find the time. It's new for me this kind of diy so I can't just whip them up.
If you measure the impedance of the field coils, the current will be between 9/R and 12/R. The value can be determined by measurement and by ear. That is when you have both a measured and subjective smooth response.
At higher voltage you get more current flow, the Qts of driver sinks.
When you use it in a openbaffle It's a bad decision you loose some in the deep bass.
In a box, it sounds better; the magnetic strength increases; more control; better impulse processing.
Exsample at 6.0 volt qts 0.9 at 11volt qts 0.5 are values to illustrate
P.S
Qts 0.15-0.4 for horn
Qts 0.5- 0.767 bassreflex/ closed
Qts 0.8- 1.2 openbaffle
Pmax 14 volt × 5Amp = 70watt coil
R= u x u/ power
R= 14x14/ 70 = 2.8 ohms
I=u/r
11.26volt /2.8 ohms= 4.02 ampere
Assuming the maximum voltage/current (14 volts and 5 amps) of the excitation coil. No guarantee.
P.S
in which type of loudspeaker is the supravox used?
Pmax 14 volt × 5Amp = 70watt coil
R= u x u/ power
R= 14x14/ 70 = 2.8 ohms
I=u/r
11.26volt /2.8 ohms= 4.02 ampere
Assuming the maximum voltage/current (14 volts and 5 amps) of the excitation coil. No guarantee.
P.S
in which type of loudspeaker is the supravox used?
It’s highly unlikely to be dissipating 70watts. The 5amp is the recommended ps to not have it maxed out. If I had to guess it’s probably 25-35watt dissipation at max voltage.
OK guys, thank you very much for your help. I learned a lot and many things became clear to me.
Yesterday, I measured my field coils.
The resistance of a cold field coil is 3.4 ohms.
The resistance of a field coil heated after an hour of playing is 3.8 ohms.
The values on the laboratory power supply are:
cold 11.52V 3.308A and 38.21W, hot 11.52V 2.983A and 34.47W.
The power supply is not calibrated and shows a slightly different voltage than my multimeter, which I used to measure the resistance.
It’s highly unlikely to be dissipating 70watts. The 5amp is the recommended ps to not have it maxed out. If I had to guess it’s probably 25-35watt dissipation at max voltage.
OK guys, thank you very much for your help. I learned a lot and many things became clear to me.
Yesterday, I measured my field coils.
The resistance of a cold field coil is 3.4 ohms.
The resistance of a field coil heated after an hour of playing is 3.8 ohms.
The values on the laboratory power supply are:
cold 11.52V 3.308A and 38.21W, hot 11.52V 2.983A and 34.47W.
The power supply is not calibrated and shows a slightly different voltage than my multimeter, which I used to measure the resistance.
Realistically, these numbers are close enough for you to use as a reference for the CCS power supply. Set theCCS at 3amps to achieve 11.52V once warmed up.
