**Amps Voicing Rob Robinette's Car and Tube Amp Website**

Step. Multiply the number of watts by the number of hours to calculate watt-hours. As an example, if you know your laptop computer uses 30 watts of power and you want a battery to power it for four hours, you need 120 watt-hours of stored energy.... I have a power amp (50 Ohm) that is connected to a load of Z=55e(-0.77i), by standard coaxial cable with 50 ohm BNC connector. The wiring is short, less than …

**Guidelines for Measuring Audio Power Amplifier Performance**

Clean amps often do not breakup as nicely when push because a lack of mid range. This explains the often biting treble you hear when you turn certain amps up. Also higher plate voltages make the power tube distortion sound harder.... If you are buying an amp rated at 100 watts clean (200 watts maximum), your speakers should have an RMS Average Power rating of 100 to 200 watts, so the Program power rating should be …

**What determines amp in 12v power supplies? Components**

To determine a speaker's sensitivity, we feed the speaker with 1 watt of amplifier power, using a test signal of pink noise, and measure in decibels how loud the sound is at a distance of 1 meter (about 3 feet). A lot of domestic hi-fi speakers measure in at about 89 or 90 dB SPL at 1 meter. Larger speakers, with bigger woofers and more drivers, typically produce greater acoustic output how to clean recovery drive windows 10 Tube Amp Troubleshooting 101. Jeff Bober. July 22, 2009 . A A Hi Jeff, I don’t have much experience troubleshooting amps, as I’ve had very good luck with all of mine, until just recently. I own a Fender Blues Junior, which is a great little amplifier. Recently, though, it died at a rehearsal. It made a crackling sound, then no sound. The power indicator lamp on the control panel lights

**Amps Voicing Rob Robinette's Car and Tube Amp Website**

So, if we subtract the amperage used by the power nozzle motor from our 12 amp machine, we come up with 10.5 amps for the motor and light bulb. In this example, the two motors both have ratings of very close to 10 amps, and therefore, equivalent motor input power. how to clean fly paper glue off plastic 4/05/2015 · For a basic PSU calculation you can determine the total power (wattage), required for your current or future system at the PSU calculator link below. Once you know the total PSU watts required

## How long can it take?

### Diagnosing and Fixing a Tube Amp Audiofanzine

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## How To Determine Of Amp Power Is Clean

Amplifier headroom: A brief explanation So what does a crest factor of 10db or 20db mean? Well, we can use the formula 10*log(X/Y) to determine how much of a power increase is required to increase output by 10db and 20db. 10*log(10/1) = 10db 10*log(100/1) = 20db This means the amplifier must increase power by a factor of 10 to increase output by 10db and a factor of 100 to increase output

- How to use this tool: Watts = Amps x Volts. Watts is also known as volt-amps and is typically used in conjunction with AC power circuits. Fill in any of the two fields to find the value of the third.
- When you’re matching a power amp to a PA speaker setup, a good rule of thumb is to pick an amplifier that can deliver power equal to twice the speaker’s program rating. This means a speaker with a “nominal impedance” of 8 ohms and a program power rating of 350 watts will require an amplifier that can produce 700 watts into an 8-ohm load. For a stereo pair of speakers, the amplifier
- When you’re matching a power amp to a PA speaker setup, a good rule of thumb is to pick an amplifier that can deliver power equal to twice the speaker’s program rating. This means a speaker with a “nominal impedance” of 8 ohms and a program power rating of 350 watts will require an amplifier that can produce 700 watts into an 8-ohm load. For a stereo pair of speakers, the amplifier
- If a battery is rated at 100 amp hours it should deliver 5 amps of power for 20 hours or 20 amps of power for 5 hours. When choosing a deep cycle battery, keep in mind the equipment you will be powering and the time in which they will be running.