Minden alkalommal ugyanaz a helyzet. Nagyon nem ertek az elektronikahoz de muszaki ember leven szetszedtem es a csatorna valasztora gyanakodva befujtam kontakt tisztitoval de azon kivul, hogy most gyorsabban valt csatornat nem valtozott semmi.
A motor neha tevelygett a tisztitas elott, tulment majd vissza mire megtalalta a helyes poziciot. A hangero potmeterre nem gyanakszom mert nem valtozik semmi hiaba tekergetem. Ami toretent nem regen es befolyassal lehet a hibara az, hogy a kisfiam kikapcsolt allapotban felhangositotta az erositot teljessen es ugy hagyta.
Persze en nem ellenoriztem hisz nem gondoltam mert en mindig nullara tekerem igy a szoba masik vegeben voltam mikor uvoltve megszolalt a rockzene ami persze egybol belecsapott es igy elegge nagyot kaphatott az erosito mire le tudtam tekerni. A hibat ezek utan kezdte produkalni. Itt van ketto hangfile a hibarol. Van valakinek otlete mi lehet a baj?
Koszonom elore is a segitseget. Sony Cdp Q collector-on van. De nincs kimenet az RCA-kon! Power output is watts RMS per channel with very low distortion. We're looking for more information on it.
In many situations it acts as if it had at least two s in the IF strip. I can receive stations without noise or interference that I have to switch to narrow to receive well with some other tuners. I think I now know why. I remember seeing an outboard LC filter module on a little board underneath. The black module looks just like the pair in the audio path of the Kenwood KT It is cabled to the main tuner board, clearly an afterthought.
I'll bet this filter is between the detector and the stereo decoder and that it accounts for the excellent, low-spurious-noise IF performance. Marantz search eBay The , believed to be very similar to the , has a 5-gang tuner similar to that in Marantz's tuner. Marantz B search eBay The specs for this receiver are published here. Marantz search eBay The has a 5-gang tuner similar to that in Marantz's tuner.
The service manual for this receiver includes the following statement: " The IF amplifier unit consists of seven IF amplifier stages and one AGC amplifier stage. Eight pieces of ceramic filter are also used to obtain high selectivity, and four symmetrical diode limiter stages are also employed for the best limiting characteristics, improved capture ratio and good AM suppression.
Our contributor Tim, who worked for an audio dealer, says: "The other receiver brands generally had better-performing FM sections, out-of-the-box. We just could not afford to do this for every Marantz receiver we sold. We are certain that every unit Marantz sent out for review by audio magazines during this time was carefully gone through before it was shipped.
So we think their products were, for the most part, extremely well engineered, but manufactured much too quickly. We chose not to stock the legendary Marantz uber-receiver after our tech manager popped the hood on one and declared its design a 'dog's breakfast' and that it would be a servicing nightmare.
His words were prophetic: The dial lights would melt the inside plastic bezel that was supposed to contain them. And there was no workaround, other than to fashion a bezel out of metal, or just discard it. We got to see several of these units as we were a Marantz warranty repair facility and we were REALLY glad we chose not to stock this unit. These two units would actually 'dock' together and it was a much better performing and sounding unit than the And we never had any come back for service.
Marantz search eBay The specs for this receiver are published here. Marantz search eBay This receiver had 5 FM gangs and 3 AM gangs, suggesting that it's potentially a strong performer on both bands. Marantz search eBay A contributor tells us it has 5 gangs and 8 filters. Marantz top , front , inside , back search eBay We don't know much about this receiver except that it appears to have 5 gangs and sure looks sweet.
Mitsubishi DA-R20 service manual search eBay Here's our panelist Ray: "A offering, the DA-R20 was rated at 60 watts per channel and featured a tuner section with their radial analog dial accompanied by a digital readout.
It also featured wide and narrow FM IF bandwidths. Narrow mode added a kHz ceramic filter, CF, to the end of that string. FM specs: 9. The power amp is a hockey-puck I. Overall, the specs are pretty good and the all-discrete pre-stages look nice. With its nicely illuminated front panel and rack handles, it's a handsome receiver indeed, but it ain't no DA-F The tuner is on a separate full-size board, complete with a separate power supply.
I think the tuner inside the is supposed to be identical to the stand-alone tuner. According to the brochure, it is a 5-gang tuner. The only thing I don't like about the design is the limited preset memory locations only 5 available for FM and AM. Bill adds, "I like NAD. Not necessarily the best-quality construction, but the sound is quite nice. I always expect them to have a few issues though, like cold solder joints, bad caps, etc.
Pete says they have exceptional tuner sections, but we're looking for some factual information to confirm his opinion. Here's our contributor Don: "I have long suspected that the claim about several Pioneer receivers having 'the same or a similar tuner circuit as the TX' was untrue. It turns out I was right. The TX, of course, has 5 gangs and 4 filters, and most of the units listed do not. I found the service manuals for many Pioneer receivers on the Hifi Engine site.
You must register, but it's free. Here is what I found out, from the schematic or block diagram, about the FM tuner sections of many Pioneer receivers. The tuner section is not very special for a WPC receiver, but that doesn't mean you won't like the way it sounds. Pioneer SX search eBay Specs of 1. The SX is 20 watts per channel with 4 gangs. The SX is 60 watts per channel and it's only 3 gangs.
The specs are 1. The power amplifier is configured as a DC power amplifier with the capacitors removed from the NFB circuit for a flat gain response.
There are independent dual power supply circuits with separate power transformer windings to provide power for the left and right channels. This configuration excels in ridding the sound of undesirable interference. The FM IF amplifier combines five dual-element ceramic filters for high selectivity 80 dB and low distortion. This output of this extremely precise quartz oscillator is divided into frequencies of kHz and so reception frequencies which are a multiple of kHz are locked at every kHz.
The dial is just like that on a vintage Pioneer, but a few inches longer. It also has a quartz lock, but Pioneer grew a brain since the TX, and you can disable it on the front panel. The tuner has a 4-gang analog cap, and a single gang varactor for the oscillator, so the thing has a 5-gang tuner stuffed inside it.
Stereo sensitivity is great at 36 dBf. Even so, distortion is only. Anyhow, the spurious response is dB, which is pretty decent. THD is. A dB A-weighted hum and noise suggest pretty good design. Pioneer also developed some updated tuner ICs which are in this thing instead of the old PA, etc. As a transition product from analog to digital , this thing was probably at the leading edge of analog Pioneer receiver technology.
We asked Ed Hanlon, perhaps the world's foremost authority on Radio Shack tuners and receivers, to tell us about all the 4-gang Realistic receivers, and he counts them down for us in reverse chronological order. No one should assume that all of Realistic's receivers are better than everyone else's just because we're giving them so much space we'd love to get this kind of input from fans of other manufacturers , but anyone considering a Shack receiver would be wise to heed Ed's recommendations.
It has a 4-gang front end and 3 filters, with a watt per channel amplifier. The tuner is pretty good, though not as sensitive as the Responds well to alignment and mods, like adding a second bandwidth. Manufactured by Foster Electric in Korea. Four-gang front end with three kHz ceramic filters; not very selective.
Adding a second bandwidth and some kHz ceramic filters makes this a DXing machine. Manufactured by Foster Electric in Japan and Korea. Realistic STA search eBay Same fine front end as the two receivers above, with just two ceramic filters. Can be just as sensitive as its bigger brothers after alignment. Manufactured by Foster Electric in Japan. Four-gang front end, 3 ceramic filters.
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Reviewed Feb 17th, by anada. Grew up with hi end stuff , but the last 10 years i started as a hobby a vintage colection mainly reveivers , triplex , and reel to reel decks.
A found this hobby was giving me a better buzz than hi end stuff prices are sometimes very low and merting all these people selling or buying stuff is always positive. Slowly i started putting aside my expensive stuff and started experimenting with old hifi my speakers worth almost a Golf so it was always easy from. Now to cut the ling story after buying the Sony str it was the first time that i had something equal to my monster A Class Amps, thoughts started about selling them but again how.
After 6 months A B comparison i sold them!!!! Again i started rotating other receivers but no magic!! Finnally i also sold my expensive phono replaced the cartitrige with a high outpout MC and thats it!
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