Have you ever ever asked yourself what was very good to purchase as far as classic audio machines was worried? It may be complicated. Immediately after all, there's a huge amount of it in existence, mostly utilised, and it might be tough to locate equipment that you simply can be dependent on and trust. Even so, there are a few items to look and feel for, and remembering some simple details can really assist you to choose the appropriate equipment and stay away from gaining tricked on equipment that will not be excellent, or in superb condition.
Magnavox Transformer Auctions
US $20.00
Keep in mind that you will discover three major issues to look for so far as audio equipment, and these are assortment, power, and distortion. Classic sound recording gear is famed for its dynamic range, excellent power, and absence of distortion. In truth, many people feel which the worst distortion happens in digital sort on the CD. It is because vinyl and mediums like it cover the flaws inside of a round about way covering these with richness and fullness of tone instead of uncooked digital edgy chaos.
Magnavox Transformer Videos
3.70 min. | 5.0 user rating
In the past video this set was arcing and didnt look repairable, but............
Classic speaker systems are great. Especially if your seeking for high efficiency audio speakers, complete selection audio speakers, or Alnico speakers. Be sure you verify that the loudspeakers in working problem, given that they are often pretty tough to repair. Should your buying classic I might not be troubled about cabinet blemishes because they should not affect audio. Several state that turntables provide the most effective representation of songs. Very good record players and records will absolutely give back over you invest on them if you value wonderful audio. You need to snatch these up if you find them in superior ailment. In the event you can get your hands on them, reel to reel gamers and tape are incredible. Makes to look for are Teac, Pioneer and Sony. They might be cumbersome, significant, and hard to move, but they will make up for it once you hear into the substantial good quality tape they utilize. Also, keep in mind to check out on what sort of harm the vintage unit has in advance of casting your bid. Try to remember the unit in issue might be 30 many years previous, so forget with regards to the manufacturer possessing that which you must fix it up! You'll be able to get some factors like lights and knobs from on line dealers, however , you can assume to fork out a pretty penny often more than $10 for your single knob! Also recall that items like a defeat up circumstance are hard to repair you can, nevertheless, substitute hardwood cases quite effortlessly, as if you care to expend the money you can have an individual custom made created. And normally bear in mind to check rates. Don’t get used gain of by having to pay over the merchandise is worthy of! Vintage equipment is not uncommon ample to break the lender on, unless you simply arrive across one thing tremendous uncommon. So, work out beneficial judgment, and don’t dump income into something that isn't well worth it.
Magnavox Transformer question of the day
Question Magnavox TV GR1AX Chassis Start Up Problem?
I'm trying to repair a 19" Magnavox Color TV Model RX 4240 WA 21.I've replaced every Capacitor, and resoldered the entire Circuit Panel.I've also replaced the Voltage Regulator.I dissassembled the Relay, and cleaned the Contact Points.When the set is switched on, the Relay closes, but the LED Power Indicator Light does not come on.Could the Flyback Transformer, and / or the Horizontal Output Transistor [2SD1650], with Damper Diode, be bad ? Or, perhaps a Fusible Resistor ? I don't have a Schematic, so that makes it even more "fun" ! I'm repairing it for a friend, so I want it to last.that's why I'm going through so much effort.
Best Answer Okay then , here is the method that I would employ in your position ! first you want to know where the fault is located , Power supply or horiz amp section , this a fast track method used by many experienced hands ! Okay switch the set on and wait about ten minits or so , of course you will keep an eye on while doing this . Now switch the set off and put your finger on the power regulator device be it an IC or a power transistor , is it warm ? it should be moderately warm but not enough to burn your finger ! right then if it is warm then it indicates that the device is working ( device good ) if cold then the power supply is not operating and will not have received a start pulse from the PS start capacitor which will be a low value cap between 1mfd to say 2.2mfd at 400volts working ! This is an extremely common failure component and it usually loses its value ! It is often then the case that the cap will start the PS ok from standby but when you switch the set off at the wall the cap will fail to start the supply with it its lowered value. Now if still nothing to celebrate then move to the line amp transistor 2SD 1650 , same question is it warm ? ( not red hot ) then it is likely that is also ok plus the damper diode inside . Okay then enough for now , if no results then we will move to some voltage measurements next time ! Cheers Pete
I'm trying to repair a 19" Magnavox Color TV Model RX 4240 WA 21.I've replaced every Capacitor, and resoldered the entire Circuit Panel.I've also replaced the Voltage Regulator.I dissassembled the Relay, and cleaned the Contact Points.When the set is switched on, the Relay closes, but the LED Power Indicator Light does not come on.Could the Flyback Transformer, and / or the Horizontal Output Transistor [2SD1650], with Damper Diode, be bad ? Or, perhaps a Fusible Resistor ? I don't have a Schematic, so that makes it even more "fun" ! I'm repairing it for a friend, so I want it to last.that's why I'm going through so much effort.
Best Answer Okay then , here is the method that I would employ in your position ! first you want to know where the fault is located , Power supply or horiz amp section , this a fast track method used by many experienced hands ! Okay switch the set on and wait about ten minits or so , of course you will keep an eye on while doing this . Now switch the set off and put your finger on the power regulator device be it an IC or a power transistor , is it warm ? it should be moderately warm but not enough to burn your finger ! right then if it is warm then it indicates that the device is working ( device good ) if cold then the power supply is not operating and will not have received a start pulse from the PS start capacitor which will be a low value cap between 1mfd to say 2.2mfd at 400volts working ! This is an extremely common failure component and it usually loses its value ! It is often then the case that the cap will start the PS ok from standby but when you switch the set off at the wall the cap will fail to start the supply with it its lowered value. Now if still nothing to celebrate then move to the line amp transistor 2SD 1650 , same question is it warm ? ( not red hot ) then it is likely that is also ok plus the damper diode inside . Okay then enough for now , if no results then we will move to some voltage measurements next time ! Cheers Pete
Question How can I tell if a transformer's gone bad?
I have a Magnavox 37MF321D. But here's the thing it has a bad power [supply] board. One of the caps is bulging, and there's brown drips on both of the little Switchmode Power Transformers (smpt). They look like this: http://img.directindustry.com/images_di/photo-g/high-frequency-power-transformer-for-electronics-364572.jpg The only difference is mine are slightly smaller, and of course, they're still soldered to the power board. I was just wondering does that brown oily liquid mean the smpt's are dead too. Or is it just electrolyte that some how dripped onto the smpt? The bad capacitor and the smpt are on opposite sides though! :-s I'm not sure if liquid is a good description, it's hard, like glue but it's not sticky. Any ideas what it is?
Best Answer The hard brown stuff on the SMPT is likely normal. It's some kind of glue/epoxy they use to protect stuff. I've seen it on caps before thinking they leaked...it was just where they glued it to the board to secure the thing. You can try changing the caps and MAYBE you'll get lucky. If there was leakage from a cap, you'd know it. The electrolytic is usually of gel consistency and is only liquid after it boils and vents from the cap...it's also only brown if it burns. I'm 99.999% sure you're looking at something that was a result of manufacture and not of a recent component failure. However, I did hear of some flat panel TV's that had bad power supply boards. The problem was simply the fact the caps voltage were labeled wrong and the slight over-voltage caused them to swell and fail. It's quite possible that power supply board had a similar issue. But try giving the caps a change and see what happens. The worst that can happen is smoke, sparks and perhaps an exploding cap (which spews very hot fluid..so watch out)
I have a Magnavox 37MF321D. But here's the thing it has a bad power [supply] board. One of the caps is bulging, and there's brown drips on both of the little Switchmode Power Transformers (smpt). They look like this: http://img.directindustry.com/images_di/photo-g/high-frequency-power-transformer-for-electronics-364572.jpg The only difference is mine are slightly smaller, and of course, they're still soldered to the power board. I was just wondering does that brown oily liquid mean the smpt's are dead too. Or is it just electrolyte that some how dripped onto the smpt? The bad capacitor and the smpt are on opposite sides though! :-s I'm not sure if liquid is a good description, it's hard, like glue but it's not sticky. Any ideas what it is?
Best Answer The hard brown stuff on the SMPT is likely normal. It's some kind of glue/epoxy they use to protect stuff. I've seen it on caps before thinking they leaked...it was just where they glued it to the board to secure the thing. You can try changing the caps and MAYBE you'll get lucky. If there was leakage from a cap, you'd know it. The electrolytic is usually of gel consistency and is only liquid after it boils and vents from the cap...it's also only brown if it burns. I'm 99.999% sure you're looking at something that was a result of manufacture and not of a recent component failure. However, I did hear of some flat panel TV's that had bad power supply boards. The problem was simply the fact the caps voltage were labeled wrong and the slight over-voltage caused them to swell and fail. It's quite possible that power supply board had a similar issue. But try giving the caps a change and see what happens. The worst that can happen is smoke, sparks and perhaps an exploding cap (which spews very hot fluid..so watch out)