My Late Father had one of these radios. We listened to a radio broadcast of Sir Winston Church on Jan 25, 1965. We had an attic copper wire antenna setup. The services were very clear. Dad loved the radio and when Dad passed I received it from the estate. It does not work now that I know of. I have the AC Adaptor and also the external Antenna plug. Would love to get it back into operation.
Your video has renewed my interest in my 3000-1. I got it some 15 years ago and it has just sat there quietly aging, the battery box is missing its cover and the symptoms seem to be the same as your radio. My father had one of these. I know it was bought at least late 1963 because I remember lugging this through airports proud as could be on a family trip to Florida. This was the same week that the Alaskan earthquake happened back in 1964. Looking forward to the other videos of this. On a side note: I had built a bass reflex cabinet with a 8" full range speaker and had accessed the speaker leads to my dad's radio, this was in the day when few stations filled the FM band, needless to say the sound that came forth was great even if that speaker was an 8 ohm unit.
I recently picked up a 1000D on ebay for a good price. It needs some work.. It took some digging to find the right schematic. Although similar to the 1000 in a number of ways, the 1000D is wired differently in some sections. The worst part is the degradation of the outside of the case where the metal surfaces have bubbled and suffered from some corrosion.. It's almost deaf, but I can pick up one station on the BC band fairly clearly but at low volume. Interestingly connecting either of the bar antennas causes a lot of distortion.. Looking around inside it would seem that it's never been serviced. I look forward to the challenge of getting it working.
Great radio. I agree with you, don’t clean it. The old crusty dirt just really makes these radios so nice get some new batteries and soak them in vinegar and salt. They will get good and crusty too. They will fit right in.
I just bought a ZTO 3000-1 last week; NONE of the bands worked. Only audio worked. ALL of the issues were due to bad transistors. Except for the 2 FM transistors, all of the IF and RF transistors were all bad. One was salvaged by bending the case lead. Sounds great now, the project is now in cosmetic mode now.
just removing the case/screen connection can cause instability, i've had that problem with some radios, you can sometimes 'blast' the tin whiskers with a charged high value capacitor, i've done it a few times and so far worked...
Clicked on this wondering what kind of trans oceanic it would be. I have an old H500 myself I picked up a week ago. Mine sounds great, no hum or anything and cosmetically looks great. It is missing the manual and the antenna wire for hooking up the wave magnet antenna externally of the unit though. Hard to find one of those buggers too apparently, lol. Even though there's no hum I still want to check to see if it has the old selenium rectifier in it. If it does, that's got to go. The rest I'll worry about if hum develops before I worry about new caps and resistors. Will watch this restoration with interest just the same even though I'm more a pre-transistor type, lol. I keep hearing you say how heavy the unit is but I don't find my tube unit heavy at all considering it's size. I can lug it around pretty comfortably by it's handle.
When you turned the tone down, it sounded more similar to noise I've heard on FM. (I have a Worldstar multi-band receiver that can receive AM, CB, SW1/SW2, FM/TV1, TV2, AIR, WB, PB, and can be used as an audio amp/speaker)
Need AC adapter. Is the jack 2.5mm mono plastic jack? Is the tip negative terminal? What should be the amperage of the 12V adapter? Look forward to hearing from you mate.
David B, Yes, it is a 2.5mm mono, but on the adapter's male plug, the insulation between the tip and the sleeve is *MUCH* longer than on our typical miniature phone plugs. That was done to avoid the momentary short circuit that would occur if one plugged the adapter into the 120/240v supply BEFORE plugging the adapter into the radio. Solid state rectifiers back in those days weren't known to have very good intermittent surge current capability; didn't want to risk ruining the diodes with a dead short. Don't worry too much about that with a modern, low current wall transformer. Use a standard 2.5mm phone plug. But if you want to power her from a car battery or other high current source, use an in-line fuse (1/4 or 1/2 AMP Slow). Yes THE TIP IS NEGATIVE! And the chassis is positive common ground. Current requirements are rather small. 250mA will work, 500mA for some headroom. I hope this helps!
@@glasstronic Thank you so much. Good news is that I was able to find the very original metal old adapter! And the radio is working but 2 problems: 1: The volume is not as high as I expect. 2: The reception is not really good I can only listen 2-3 channels. Is that all normal?
@@davidb649 Not normal. A common trouble with these is failed electrolytic capacitors. I had to replace ALL of those in my radio to get her working well. Yeah, she should holler loudly.
Hello! I've scored one of these for free from a recycling center today, and it has a bit of an annoying problem. Everything works just fine, it is really clean with no battery corrosion(in fact, no batteries never seemed to be put in it), and all functions work. But, there is this high frequency whine always in the background when the power is on. And it is pretty loud too. Do you have any thoughts about this problem?
If you are using a modern power supply (a "switcher") to power it, that could be the trouble. Also, any computer/display power supplies nearby can cause that. Maybe put battery cells in it and get away from RF noise sources as a test? At least she is making some noise; that is a good sign. Prayers you get her working well.
Well you see, I've been running it off of the battery pack all of this time. Because I've been too lazy to find a power adapter that fits it. I just tried what you suggested, and it still seems to make that noise. Do you think that I should replace all of the electrolytics inside of it? They have no leakage. From what I've deducted, it seems to be something wrong with the circuit leading up to the speaker. Because if you plug headphones in, it goes away entirely. Is there anything inside of it that could resonate at that frequency? Such as a crystal clock of some sort that could've gone bad? I don't know, but it is mighty annoying to listen to.
Okabe Rintarō "They have no leakage." When I mention "leakage" I don't mean stuff leaking out of the capacitor, I mean electrical leakage through it. It's a bit odd that it works well with headphones but not so well with the built-in speaker, as they both are powered by the same circuit. I do suspect that a power supply decoupling capacitor might be the culprit; the speaker might be drawing more wattage than your headphones and so loading the beast differently. I'd replace the 'lytics as a matter of course given the symptoms you describe.
have this exact radio. I do not have the battery pack. When I plug the radio into the wall with the correct Zenith power adapter, I get a constant interference noise on the short wave bands, very similar to what one would hear on the am band. The fm band is perfect. I am wondering if the electric power is the source. Can you tell me where I can purchase a battery pack for this radio. My hope is that with battery, I would eliminate the interference.
I don't reckon your power supply is the cause of the trouble as you describe it. More likely local interference; could be a phone charger, a compact fluorescent lamp, etc.
I am looking for help with my Dad's 3000-1, it was in Vietnam with him and I remember listening to it as a kid, but now it doesn't even turn on. Is there anyone out there who restores these and are honest?
Eric Johnson check to see if you have dc voltage from power supply (around 12 or 9 volts dc. Check with a substitute speaker. These speakers will go open if radio was left in the hot sun on the beach. You can check for audio by plugging in an earphone to the earphone jack. That may tell you the speaker is bad without pulling the chassis out. This may have an audio output jack to connect to a separate amplifier. If it works through an aux amp Your trouble is in the audio driver or output stage or speaker. If no audio through the aux amp recheck power supply voltages and try on battery operation. Make sure battery terminals are not corroded and clean with a wire brush if necessary
Наука
My Late Father had one of these radios. We listened to a radio broadcast of Sir Winston Church on Jan 25, 1965. We had an attic copper wire antenna setup. The services were very clear. Dad loved the radio and when Dad passed I received it from the estate. It does not work now that I know of. I have the AC Adaptor and also the external Antenna plug. Would love to get it back into operation.
Your video has renewed my interest in my 3000-1. I got it some 15 years ago and it has just sat there quietly aging, the battery box is missing its cover and the symptoms seem to be the same as your radio.
My father had one of these. I know it was bought at least late 1963 because I remember lugging this through airports proud as could be on a family trip to Florida. This was the same week that the Alaskan earthquake happened back in 1964.
Looking forward to the other videos of this.
On a side note: I had built a bass reflex cabinet with a 8" full range speaker and had accessed the speaker leads to my dad's radio, this was in the day when few stations filled the FM band, needless to say the sound that came forth was great even if that speaker was an 8 ohm unit.
I recently picked up a 1000D on ebay for a good price. It needs some work.. It took some digging to find the right schematic. Although similar to the 1000 in a number of ways, the 1000D is wired differently in some sections.
The worst part is the degradation of the outside of the case where the metal surfaces have bubbled and suffered from some corrosion.. It's almost deaf, but I can pick up one station on the BC band fairly clearly but at low volume. Interestingly connecting either of the bar antennas causes a lot of distortion.. Looking around inside it would seem that it's never been serviced.
I look forward to the challenge of getting it working.
Glass tronic you are good at restoring vintage shortwave receivers and alignment of vintage shortwave receivers
Enjoyed your phone call.with your mechanic!!
Heheheh... I'd forgotten to provide some documents he required. ;-)
Good job, beautiful radio
Great radio. I agree with you, don’t clean it. The old crusty dirt just really makes these radios so nice get some new batteries and soak them in vinegar and salt. They will get good and crusty too. They will fit right in.
thanks for making this vid ,,,it is helping me a lot as I work on mine
Cool! Any chance you could video your work?
You might help another with troubleshooting these beasts. ;-)
No worries, my friend. Thanks for the video though.
I'm a long time ZTO collector and restorer, albeit only the tube models.
73
Don
I just bought a ZTO 3000-1 last week; NONE of the bands worked. Only audio worked. ALL of the issues were due to bad transistors. Except for the 2 FM transistors, all of the IF and RF transistors were all bad. One was salvaged by bending the case lead. Sounds great now, the project is now in cosmetic mode now.
just removing the case/screen connection can cause instability, i've had that problem with some radios, you can sometimes 'blast' the tin whiskers with a charged high value capacitor, i've done it a few times and so far worked...
Clicked on this wondering what kind of trans oceanic it would be. I have an old H500 myself I picked up a week ago. Mine sounds great, no hum or anything and cosmetically looks great. It is missing the manual and the antenna wire for hooking up the wave magnet antenna externally of the unit though. Hard to find one of those buggers too apparently, lol. Even though there's no hum I still want to check to see if it has the old selenium rectifier in it. If it does, that's got to go. The rest I'll worry about if hum develops before I worry about new caps and resistors. Will watch this restoration with interest just the same even though I'm more a pre-transistor type, lol. I keep hearing you say how heavy the unit is but I don't find my tube unit heavy at all considering it's size. I can lug it around pretty comfortably by it's handle.
Yep, I'd replace the selenium too.
And, yep, the 3000-1 is a beast to carry, especially when filled with alkaline D cells! ;-)
Glass tropical l have a zenith Trans oceanic it was my uncle it works
I've never heard that sort of noise come out of a working radio, so it's probably something internal. probably something within the receiver part.
When you turned the tone down, it sounded more similar to noise I've heard on FM. (I have a Worldstar multi-band receiver that can receive AM, CB, SW1/SW2, FM/TV1, TV2, AIR, WB, PB, and can be used as an audio amp/speaker)
Need AC adapter. Is the jack 2.5mm mono plastic jack? Is the tip
negative terminal? What should be the amperage of the 12V adapter? Look
forward to hearing from you mate.
David B, Yes, it is a 2.5mm mono, but on the adapter's male plug, the insulation between the tip and the sleeve is *MUCH* longer than on our typical miniature phone plugs. That was done to avoid the momentary short circuit that would occur if one plugged the adapter into the 120/240v supply BEFORE plugging the adapter into the radio. Solid state rectifiers back in those days weren't known to have very good intermittent surge current capability; didn't want to risk ruining the diodes with a dead short. Don't worry too much about that with a modern, low current wall transformer. Use a standard 2.5mm phone plug. But if you want to power her from a car battery or other high current source, use an in-line fuse (1/4 or 1/2 AMP Slow).
Yes THE TIP IS NEGATIVE! And the chassis is positive common ground.
Current requirements are rather small. 250mA will work, 500mA for some headroom.
I hope this helps!
@@glasstronic Thank you so much. Good news is that I was able to find the very original metal old adapter! And the radio is working but 2 problems: 1: The volume is not as high as I expect. 2: The reception is not really good I can only listen 2-3 channels. Is that all normal?
@@davidb649 Not normal. A common trouble with these is failed electrolytic capacitors.
I had to replace ALL of those in my radio to get her working well. Yeah, she should holler loudly.
@@glasstronic So is the reason for bad reception and low volume capacitors?
@@davidb649 Yes. It is a very likely cause of those symptoms.
Hello! I've scored one of these for free from a recycling center today, and it has a bit of an annoying problem. Everything works just fine, it is really clean with no battery corrosion(in fact, no batteries never seemed to be put in it), and all functions work. But, there is this high frequency whine always in the background when the power is on. And it is pretty loud too. Do you have any thoughts about this problem?
If you are using a modern power supply (a "switcher") to power it, that could be the trouble. Also, any computer/display power supplies nearby can cause that.
Maybe put battery cells in it and get away from RF noise sources as a test?
At least she is making some noise; that is a good sign. Prayers you get her working well.
Well you see, I've been running it off of the battery pack all of this time. Because I've been too lazy to find a power adapter that fits it. I just tried what you suggested, and it still seems to make that noise. Do you think that I should replace all of the electrolytics inside of it? They have no leakage.
From what I've deducted, it seems to be something wrong with the circuit leading up to the speaker. Because if you plug headphones in, it goes away entirely. Is there anything inside of it that could resonate at that frequency? Such as a crystal clock of some sort that could've gone bad? I don't know, but it is mighty annoying to listen to.
Okabe Rintarō "They have no leakage."
When I mention "leakage" I don't mean stuff leaking out of the capacitor, I mean electrical leakage through it. It's a bit odd that it works well with headphones but not so well with the built-in speaker, as they both are powered by the same circuit. I do suspect that a power supply decoupling capacitor might be the culprit; the speaker might be drawing more wattage than your headphones and so loading the beast differently. I'd replace the 'lytics as a matter of course given the symptoms you describe.
Okabe Rintarō
Is there any way you could post a video (with sound) of it misbehaving here on RUclips?
glasstronic Have a look towards the end of this video; I did demonstrate the symptom.. ;-)
have this exact radio. I do not have the battery pack. When I plug the radio into the wall with the correct Zenith power adapter, I get a constant interference noise on the short wave bands, very similar to what one would hear on the am band. The fm band is perfect. I am wondering if the electric power is the source. Can you tell me where I can purchase a battery pack for this radio. My hope is that with battery, I would eliminate the interference.
I don't reckon your power supply is the cause of the trouble as you describe it.
More likely local interference; could be a phone charger, a compact fluorescent lamp, etc.
वाह! 😊👌
Glass tronic iam thinking about getting my ham license
I am looking for help with my Dad's 3000-1, it was in Vietnam with him and I remember listening to it as a kid, but now it doesn't even turn on. Is there anyone out there who restores these and are honest?
Eric Johnson check to see if you have dc voltage from power supply (around 12 or 9 volts dc. Check with a substitute speaker. These speakers will go open if radio was left in the hot sun on the beach. You can check for audio by plugging in an earphone to the earphone jack. That may tell you the speaker is bad without pulling the chassis out. This may have an audio output jack to connect to a separate amplifier. If it works through an aux amp Your trouble is in the audio driver or output stage or speaker. If no audio through the aux amp recheck power supply voltages and try on battery operation. Make sure battery terminals are not corroded and clean with a wire brush if necessary
Arthur Everett
I have a Zenith trans-oceanic 3000. How do I get Intouch with you to repair it thanks. krugmanr@aol.com
They are POSITIVE GROUND, REPEAT, POSITIVE GROUND CHASSIS!
yes! that is correct. They are positive ground.
that's why I mentioned it in the video because it is an easy thing to miss.
I have others shortwave receivers l have the tecsun h 501x Mw lw fm stereo sw ssb 5band table top receiver
SHOW!
650 f degrees is plenty hot for a soldering iron. Who uses 1200 degrees?!
Lookat all that cigarette paste!!! Snifflelichous!!!!
Zzzzz....
???
+3400elefantes Heheheh... the radio or my vid style? No worries. ;-)