Here is most of my collection. I excluded cheap 60s/70s multiband sets. I also have doubles triples and quadruples of many of these sets.
Left to right then center.
Sony CRF-5100 Earth Orbiter(late production) circa 1975-80 ten band
Norelco/Philips North American model L5W34T circa 1962 four band(FM BC)
SHARP Multiband FV-1710 six band circa appr 1968
Ray Jefferson model 630-RDF five band circa appr 1975
Right to left
Zenith Royal 3000-1 Trans Oceanic ten band circa 1966(FM, no 13m band)
Zenith Royal 1000D Trans Oceanic ten band circa 1960(13m band, no FM)
Zenith D7000Y Trans Oceanic eleven band circa 1972-78(late production on mine)
Left to right
Panasonic RF-5000A thirteen band circa 1968
Panasonic RF-2200 eight band circa 1975
Here we have some of the original paper work.....
Trans Oceanic 1000D
Trans Oceanic D7000Y
Sony CRF-5100 Earth Orbiter
Here are links to further paper work.....
http://antiqueradios.com/gallery/view_p ... ollection8
http://antiqueradios.com/gallery/view_p ... ollection9
All these sets perform beautifully. The Trans Oceanics have all been thoroughly cleaned and completely aligned starting with the IFs.
The only sets I haven't aligned because I see no reason are the Panasonic RF-2200 and Sony CRF-5100. All these sets are with 90% or better condition. I hate using the term "mint" because that infers they're the same as when new. I don't buy it with 20-40 year old sets.
Performance wise, these sets are very close to one another. The best is hardly above the worst in sensitivity. The main difference I find is image rejection and selectivity. Here they are in order with these parameters in mind.
Sensitivity/Selectivity & Image Rejection in order of best to worst;
Panasonic RF-2200 & Sony ICF-5900W(the 2200 & 5900W are the only dual conversion receivers in the bunch. Both operate about the same)
Zenith Trans Oceanic D7000Y & Panasonic RF-5000A(the Panasonic loses to the Zenith in image rejection, other than that they're equals in every way).
Zenith Royal 3000-1, Zenith Royal 1000D, Norelco/Philips L5W34T are just about equal in every way. If anything the 3000 T/O seems to have an ever so slight edge in SW reception. Being I have several sets each of the 1000D & 3000 it's an honest comparison. Not sure why but if you like to nit pick sensitivity, that's my finding.
Sound quality in order best to worst;Sound quality for the various sets are close. Some sound better on FM than others but not AM. This is based on overall sound performance.
Sony CRF-5100 Earth Orbiter
Zenith Trans oceanic models D7000Y & 3000(no real difference)
Zenith Trans Oceanic 1000D & Sony ICF-5900W(sound quality on FM is on par with the RF-2200. BCB/AM performance is about the same as the 1000D Zenith)
Build quality in order from best to worst
Now this is probably the most debatable category of them all. I've had all these sets apart at one time or another. Plus I have parts sets for all these radios so I feel I know them fairly well. All sets show generally good to excellent build quality given their intended use & price range when new. But, there are known issues with many to watch out for.
RF-5000A all T/Os SHARP FV-1710 and the CRF-5100 I would rate equal in build quality. The RF-2200, Norelco/Philips & ICF-5900W seem about the same in build quality. They are a step below the other sets.
The build problems associated with these sets are;
RF-5000A band button stops are rubber. They deteriorate with time causing loss of reception
Sony CRF-5100 have issues with the band scale drum warping, WATCH OUT FOR THIS! It's not always evident so if you purchase one ASK ABOUT THIS. You may find yourself disappointed. I've taken the time to contact Sony of Japan for replacements and they're not available. I also find many of the Epay sets seem to lack the original antenna. Note my pick is the original antenna for reference. Parts sets aren't common and when they do pop up on Epay they usually go for $70+ dollars.
Zenith 7000 series sets really have very few issues. Other than switch cleaning there are none to mention.
1000 & 3000 series sets suffer pitting and bubbling chrome. Also the brushed face cover pits badly. The carry handle is also the antenna and 5 out of 10 can be found cracked. Keep this in mind when shopping for one.
The Panasonic RF-2200 suffers dirty switches in a big way. I seem to find them needing a serious cleaning more so than the Zeniths. Also watch out for a broken rotating ferrite rod antenna. What breaks on these is the detent socket/ball that holds them up. Also ask about dial backlash. These sets use delicate plastic gears to rotate both the dial & dial scale/scroll. If the dial knob is damaged or turned past it's stop, damaged gears could be the result. This makes accurate tuning difficult.
Sony ICF-5900W. Similar to the RF-2200. Broken pop-up antenna, dirty switches. Also the battery cover seems to come up missing more often than not. If you are looking to purchase one, make sure you ask the seller. The dial system also suffers the same issues as the 2200, WATCH FOR THIS!
No known issues with the Norelco/Philips but I've been told the dial strings in most Norelco's are a Bear to deal with if broken. Worse than many of our beloved tube sets.
No noted issues with the SHARP sets. There are various models similar to the one I own.
Ease of use/Ergonomics
Operation is generally obvious, but I thought I would comment anyhow. My take on this is ease of use, handiness and portability in order from best to worst
1)Sony ICF-5900W - Very easy to handle, light, easy acquisition of operating controls. I've found I can get on freq FAST with this set. Easy to hold with one hand.
2)Panasonic RF-2200 & Norelco/Philips.
3)Sony ICF-5100 all Zenith T/Os & the SHARP - Easy to use but heavy making portability less desirable.
4)Panasonic RF-5000A - Damn heavy! I mean a serious 25 lbs of weight. Forget portability with this set. Also, slow to operate. Takes a second or two to figure out which band you're on and operate. Consider this monster set for permanent table top placement
Well that's all from me. I would like to see other multiband sets and any info associated with them from other members. Also any experiences counter to my own. Please post'em.