Antek transformer error

The PDL is an acoustic partial discharge PD localization system for pinpointing the location of insulation defects in power transformers. Even at an early stage, insulation defects produce measurable partial discharges, which emit electrical and acoustic signals at the same time. The PDL measures the acoustic signals with multiple sensors installed across the surface of the transformer. The PDL software uses the time difference of incoming signals from all acoustic sensors to determine the location of an insulation defect in the transformer. The coordinates of the defect location are shown in a 3D model of the transformer. This information allows users to quickly act and take necessary maintenance actions to prevent failure.

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• 50VA at 9V 5.5A 18VCT Toroidal Power Transformer Antek AS-0509
• 12VCT Power Transformer Antek AS-0506 50VA at 6V 8A
• Source for toroidal tranformers
• MOD WIGGLER
• Antique Radio Forums
• sales online order now with big discount & free delivery
• power transformer problem - help?
• 2pcs 10VA 30V 30V 60VCT Small Power Transformer Antek AN-0130
• 50VA at 15V 1.7A 30VCT Toroidal Power Transformer Antek AS-0515

WATCH RELATED VIDEO: Аварийный запуск при Power Sys Error - 00800

50VA at 9V 5.5A 18VCT Toroidal Power Transformer Antek AS-0509

Update: Dec I added an EF80 push-pull power amp option. Update: Mar Update: Jun It's a much more faithful rendition of the 5F6A Bassman. Due to builder feedback I moved the FX loop to reduce signal level. It is now placed immediately after the volume pot. Update: May Using a Long Tail Pair phase inverter instead of a cathodyne allows the addition of a true 5F6A negative feedback loop and presence control. The overdrive tone is also more 5F6A authentic.

Update : April On stage with Circus Oz using a Bassman Micro. Update: April Bassman Micro builder Farrell Wymore recorded this song in the studio and used his Bassman Micro for all the guitar mixes: Collaborative by Farrell Wymore. Bassman Micro builder Reuben gigs with his amp. Here's a soundcloud of Reuben's Bassman Micro in the mix. The Bassman Micro features two stages of gain, a tone stack buffer, tone stack with Treble, Mid and Bass controls, a cathodyne phase inverter and a true push-pull power amp.

Seek help from a competent technician before building any unfamiliar electronics circuit. See more tube amplifier safety info here. You may build, modify and sell my designs without limit. For commercial use all I ask is that you include, "Design by RobRobinette. David used tube rectification so the diode rectifier is deleted from the extreme left edge of the board. Photo by David Jones.

The Post Phase Inverter Master Volume far left control can easily be deleted by removing the pot and its two wires.

Click the image above to see the hi-res. Click here to see the hi-res Layout pdf file. Click the image to see the hi-res. Click here to see the hi-res schematic pdf file. Faceplate design, amp build and photos by David Jones. I'm a big fan of the 's Fender tweed amps and the 5F6A Bassman is a legendary amp that was copied by Marshall and became the foundation of that company's amp lineup.

I used an almost exact copy of the Bassman's Bright Hi preamp channel and Long Tail Pair phase inverter feeding a small bottle true push-pull power amp. The 12AU7 with both triodes in push-pull will develop around 3 to 4 watts of output power. Swap in a 12BH7 and the output increases to 4 to 5 watts. By putting it on a switch you can choose between the Bright and Normal channels.

The difference between Bright and Normal is very subtle with the 5F6A's pF bright cap but you can make it more effective by increasing the value to pF or pF. Without this load resistor our preamp gain will be much higher than the 5F6A.

The original Bassman's k Bright Channel Mixing resistor forms a voltage divider with the Normal Channel load so adding the k load resistor gives us the same preamp gain as the dual channel 5F6A. Deleting the k Normal Channel Load resistor will significantly boost preamp gain if you are into that. The Tone Stack Bypass Raw Switch is an easy mod that removes the signal sucking tone stack from the circuit and delivers "raw" guitar tone.

The signal will be 'boosted' and 'naturalized' when the tone stack is bypassed. This switch also comes in handy if you like to use an equalizer pedal for tone shaping. The KA yes, audio taper pot will allow you to gradually roll on more preamp gain and mid freqs instead of having the all or nothing of a raw switch. The " poor man's FX loop " allows you to insert post preamp effects. The power amp grid stop and grid leak resistors are arranged as an attenuating voltage divider to get the signal voltage down to suit our little power tube s.

You have the choice of using a simple solid state, 9-pin or 8-pin tube rectifier. I recommend you use an EZ81 9-pin rectifier tube because it's low output will suit the low current needs of the Bassman Micro so you'll get a little voltage sag. The EZ81 will drop about 20 volts compared to a solid state rectifier. It uses a standard 9-pin socket and 6. If you want to use a full size 8-pin rectifier tube like a 5Y3GT which drops about 60 volts compared to a solid state rectifier then I recommend the higher voltage output Hammond CAX power transformer to compensate for the extra voltage drop.

It comes with a 5V output for the 5Y3. My recommended power transformers are the Hammond AX for the US and Hammond AX available here for international builders has , , , , and volt primaries, see this for wiring instructions.

They have V high voltage secondary output and 6. If you use solid state rectification you may need to add a 2 watt voltage dropping resistor before the first filter cap to bring the voltage down to around V DC at the first filter cap. The recommended output transformer is the Hammond B or C for less compression and more volume but I believe the B will give the truest 5F6A tone.

If you use an EZ81 rectifier tube it uses about 1 amp of heater current so any power transformer that supplies 2 amps of 6.

Red variac controls just the high voltage AC to the amp. Separate 6. I played them all through a Weber 12AA 12" Alnico speaker in an open back extension cab behind table , a 15" JBL E with hemp cone in the 5E3P cab and an Eminence H hemp coned 6" speaker in a small enclosure on top of the Deluxe. The blue box at bottom right next to the oscilloscope is a bucking transformer used to lower the heater voltage to spec.

I added a Master Volume to the power amp because it's needed to control how hard the little 12AU7 power tube is driven. The Master Volume also does a good job of controlling the output for true bedroom amp volume levels. The Master Volume is also very helpful when pedals are used with the amp because you can keep from overwhelming the little power tube when using high output FX.

You need to play with the Master Volume to get the most out of this amp and to control the balance of preamp and power tube distortion. The Volume pot controls the preamp tube and the Master Volume controls the power tube. Some high output guitar pickups and effects pedals can push the power tube too hard and cause some funky power tube blocking distortion. If this occurs just dial back the Master Volume a little.

Doug Hoffman at HoffmanAmps. I typically set the Bass control low at about 3 and leave it alone and then play with the amp's two volume controls--don't set the Master Volume and forget it, it has a lot of affect on the amp's tone. The Bassman Micro handles a 12AX7 in V1 well because the Master Volume can keep the little power tube from being overdriven into oblivion.

I'm really surprised all micro amps don't have a Master Volume, it really is necessary to make a micro bottle power amp versatile. Here's an mp3 sound clip of David Jones playing his Bassman Micro. He said this about the clip:. For the dirty sounds I set the volume to about 3 o'clock and the master volume to about 10 o'clock. For the clean sound I set the master volume to max and the volume to about 10 o'clock.

Bass, Treble and Mid were all set to 12 o'clock. I had the feedback switch in the middle position off. I played the Bassman Micro through three different speakers during testing: My favorite Fender tweed era speaker is the Weber 12AA 12 inch Alnico in an open back cab.

The little Bassman Micro sounded best with this pairing--very rich and tweedy and it made my Telecaster sound like a Tele should. The 12AA is a low efficiency speaker rated at 95dB but the Bassman Micro still put out plenty of volume at high Master Volume settings. I also tried my favorite small speaker, an Eminence H 6 inch hemp coned speaker.

If you need lower volume this little speaker is the way to go. It still sounds very good with less of everything compared to the Weber but max volume is quite a bit lower. It's a very high efficiency dB driver that pumps out loud, clear, accurate guitar tone. The Bassman Micro was crazy loud and sounded fantastic. I really had fun with this speaker for high distortion shredding with a 12AX7 in V1 but it was loud enough that my wife had to intervene.

I recommend you go with an 8" or larger speaker because this amp sounds too good to be strangled by a 6" speaker. Bottom line is any speaker that works with a full size tweed amp like the Deluxe or Bassman should work well with the Bassman Micro. The biggest difference in tone is the Bassman Micro's low end.

It's always there no matter how hard you shred the little amp, while the Firefly and Tubemeister scream with modern high pitched accuracy. You could really hear the difference between the two amps through the big 15" JBL but the Bassman Micro blows away the other amps when playing clean through the Weber 12AA 12" alnico. Their Vintage and Signature Alnico speakers drip Fender tweed tone.

They offer two lines in sizes from 6 to 15 inches. If you want to be true to the Bassman design a nice 4 x 10" cab with Weber Vintage 10AA 30 watts would be my choice. The less expensive 10" Signatures would also be a good fit. For a more modern, mid's tone with tighter bottom end the 10F with ferrite magnet and larger 1.

Keep in mind all these speakers need a break in period and will sound better after being worked in. Weber offers a free break in service so they will sound perfect right out of the box. For ultimate convenience building a small combo amp paired with an 8 inch Weber Vintage 8A speaker is probably the way to go but be sure and try the Bassman Micro with other speakers so you can really appreciate how good it sounds with a real, full sized tweed speaker. These tag strips are great for point-to-point wiring.

12VCT Power Transformer Antek AS-0506 50VA at 6V 8A

View Full Version : making sure a power supply is correct. The amp rating is i believe 4. John, From the data sheet, each motor, if wired half-coil, would draw 4. If you wired the motors parallel using all eight wires , each motor would draw 6. So, depending on how you wire the four motors, multiply 4. Many people routinely derate the square motors, too, depending on how hard the motors are used.

Source for toroidal tranformers

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MOD WIGGLER

The Modulus is the most powerful member of the Modulus family of amplifiers. Several additional choices are listed in the Modulus Design Documentation. The selection of switching power supplies suitable for the Modulus is rather limited. The Mean Well supplies are available from Mouser, Digikey, and others. The Modulus is a Class-AB amplifier, thus dissipates a large amount of heat.

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sales online order now with big discount & free delivery

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power transformer problem - help?

Moderators: Kent , luketeaford , Joe. Post by JenniferG » Sat Apr 02, pm. Post by tarandfeathers » Sun Apr 03, am.

2pcs 10VA 30V 30V 60VCT Small Power Transformer Antek AN-0130

RELATED VIDEO: Finished over unity transformer

Toroidal inductors and transformers are inductors and transformers which use magnetic cores with a toroidal ring or donut shape. They are passive electronic components , consisting of a circular ring or donut shaped magnetic core of ferromagnetic material such as laminated iron , iron powder, or ferrite , around which wire is wound. Although in the past, closed-core inductors and transformers often used cores with a square shape, the use of toroidal-shaped cores has increased greatly because of their superior electrical performance. The advantage of the toroidal shape is that, due to its symmetry, the amount of magnetic flux that escapes outside the core leakage flux is low, therefore it is more efficient and thus radiates less electromagnetic interference EMI.

50VA at 15V 1.7A 30VCT Toroidal Power Transformer Antek AS-0515

Update: Dec I added an EF80 push-pull power amp option. Update: Mar Update: Jun It's a much more faithful rendition of the 5F6A Bassman. Due to builder feedback I moved the FX loop to reduce signal level.

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