Zenith Trans-Oceanic: The Royalty of Portables - Guestbook

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Submitted by Comments:
Name: Alvaro Ernani Georg
From: Rio de Janeiro
E-mail: alvarogeorg@yahoo.com.br
A very good revision about the ZTO radios.
Right now I am restoring my first H500 and there is another one waiting in line after that.
I am new on electronics and tube radios.
This site will be one the my main sources for those restorations.
Thanks,
Alvaro.
Added: November 23, 2020 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Dave Bjork
From: Maplewood, MN
E-mail: dabirch89@gmail.com
I built a D/AA Alkaline battery pack for my H500. I get 240-250 hours. The radio doesn't really die. I just fades away working perfectly, at around 5.5 and 55 volts. Does anyone know what the original battery packs cost? And how long they lasted?
Added: March 6, 2020 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Jean de Bellefeuille
From: Bowdoinham, Maine USA
E-mail: jean470101@gmail.com
The Zenith TO has been a favorite of mine since first seeing one in the mid-1950's. I was about 10. Over the years I've fixed a couple for friends but never found one for sale. Then eBay came of age and now I have several. The solid state 1L6 referenced here works very well, as does the ballast tube.

This web site is a great review and tribute to a fabulous radio.
Added: December 9, 2019 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Greg Rogers
From: Shelby NC
E-mail: Gregrogers83@yahoo.com
I was given a Zenith Transoceanic radio as a gift back in two thousand and six. It worked just fine but I had the good folks at the Jacksonville Antique Radio club restore the radio side of the unit. The cabinet still looks old and we'll used but the radio is great! I have enjoyed the radio set and hope to for years to come. I have bought the battery back from ABbattery but haven't used it yet. I feel very lucky to have this radio set. I have enjoyed reading this site, it a wealth of information.
Added: February 26, 2018 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Leo Calderia
From: Cape Cod, Ma.
E-mail: lsea58@aol.com
Thanks for sharing your experiences and knowledge on the great Zenith TO Portable Radio. As an eleven year old way back in 1952 my mother finally gave in and bought me one due to my constant craving for this particular radio. I'm sure she had to work plenty of overtime at the local jewelry factory in order to accommodate the weekly payments. I'm now 76 and my first and only Zenith TO still sits covered in the basement patiently awaiting some kind of attention. Your excellent article, which I found by accident while perusing the web on that radio, was inspiring enough for me to dust the darn thing off and see if there is any possible restoration potential for it. Have a great day.
Added: December 20, 2017 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Sheldon Kane
From: Palm Beach County
E-mail: auxch@bellsouth.net

 

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Added: April 26, 2017 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Joe Murphy
From: Delaware USA
E-mail: radio42@aol.com
Hello...
the 90 v battery for a zenith trans b600. battery worked out well in assembly..a and b voltages checked ok...I connected to the radio and the reception degraded notably compared to when the radio was plugged into a wall outlet where it operates perfectly. Could you give me any suggestions on how to correct this problem... I restuffed an original eveready using the same plug. could it be the plug coming from the radio has a problem. Any help would be appreciated. It would be great to get this radio working off of a battery like the old days. Also as an aside...I did use 60 AA DURACELL FOR THE B VOLTAGE and 6 D cells for A.
Added: December 5, 2015 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Michael Fischer
From: Germany
E-mail: 2good2betrue777@gmail.com
I finally understood the numbering system of the different models.Thank you very much !
Added: April 12, 2015 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Eddie
From: Tarboro NC
E-mail: damonraemon606@centurylink.net
When I was a young boy on families summer vacation we would go to my great uncle's cottage at the beach.
And the times I was just sitting around the cottage he had a Zenith transoceanic tube Radio there I would sit for hours just tuning and listening to far away places. Me and my papa would fix stuff around the cottage and I think that little radio was probably in tiptop shape. I would love to have one of my own to restore. Wonderful site you got here.
Added: August 1, 2014 Delete this entry  Reply to entry  View IP address  
Submitted by Comments:
Name: Alexander Pummer
From: Pleasanton California 94588USA
E-mail: alex@pcscons.com
Actually the problem with the 1R5 is related to the capacitance between the second and fourth grid to the third grid, I used the 1R5[T] --from Tungsram heating current only 25 mA for the same performance--in many application. The sensitivity reduction at higher frequencies is related to said capacitance between the "input grid" and the "oscillator anode"= the connected second and fourth grid. If you use the 1R5 in a similar circuit as the 6BE6 is used -- make the two connected grids G2 and G4 RF grounded, take the oscillator feedback from the cathode, you have to use RF chokes -- a bifillar one -- for the heating, the 1R5 will work even better than the original 1L6, of course that requires some changes in the oscillator circuit, if somebody interested I could supply more details on that circuit.
Added: August 8, 2013 Delete this entry  Reply to entry  View IP address  

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