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#1
11-08-2014, 06:57 PM
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RCA 66bx globe trotter battery info wanted
Hello All! i found this last weekend and got it working on AC but i've been itching to make a battery pack for it. what is the best recommended way to get 90 volts? 10 9 volt batteries or 60 aaa's or aa's? "Paging Dr. Batterymaker!"
Have you made one of these yet? Oh what would anyone recommend to use as a replacement plastic for the dial surround "glass" it originally was plastic but shrank and broke into several pieces. Thanks All! 
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#3
11-08-2014, 07:27 PM
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About 6 months ago i found a RCA BP-10 personal radio and i did the same thing. I electrical taped 8 9v batteries together. and soldered jumpers to make it work. It isn't pretty but it is fun to hear a old portable like it did when it was made. I think i want to make a nice looking battery pack this time and if that is successfull i'll do the same to the bp-10
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#4
11-09-2014, 12:03 AM
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Series 9Vs often are the most economic option. In the early 90's ARC had a decent article on how to build a DC-to-Dc converter that could make 90V out of 6V. I tried to build it early in my college education despite the step up transformer being NLA I was able to improvise a substitute...I'd now like to try my hand at designing something better.
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
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#5
11-09-2014, 01:52 PM
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I saw one of those back in the 90's, i met a guy who bought one premade for around $100 . He used it in a Zenith Transoceanic, it worked ok on AM but it had harmonics that made shortwave listening impossible. If you didn't put the power supply inside of the cabinet the noise was slightly lower. I think it needed some shielding. Since there are so many cheap dollar store batteries available i think the assembled batteries pack is the way to go for me. but if there is a improved version of the dc to dc supply i might change my mind.
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#6
11-10-2014, 03:55 PM
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I wish you luck with your Globe Trotter, Mr Fixit.
 Hope to find one someday that's in good shape.I enjoy my BP-10 at the beach in summer, and used the same battery solution, arranging the batteries to fit nicely inside. Had to re-cap, and after was rewarded with a very nice radio with decent reception, at least over water about 90 miles from NYC. Need to get back on track with the multi-band transistor stuff.  Kevin
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