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 Post subject: Zenith 6B129 radio
PostPosted: Jul Sat 15, 2017 5:54 pm 
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Joined: Oct Sun 27, 2013 11:58 pm
Posts: 19
Location: Green Bay, WI.
After haggling for a bit, I bought this radio locally for $225, the cabinet is in very nice condition, and everything seems to be there.

I am a newbie at this, did notice the dial knob does not move the dial pointer, so I am thinking I’ll need a new belt or restring a dial string, and I would like to get a replacement speaker grill cloth for it, something that matches as close as I can to original.

I have read a number of posts about collectors updating this to a solid state power option, bypassing the original vibrator, converting to 120 volt, so not sure what direction I will take at this time.

I really like the Zenith black dial radios, this being the first one I ever bought, I figured I wouldn’t find another one as nice as this and also so close to home.

If anyone has any suggestions/directions as what to do next (aside from replacing caps and maybe resistors), feel free to respond, the more information I get, the more I’ll learn.

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 Post subject: Re: Zenith 6B129 radio
PostPosted: Jul Sat 15, 2017 11:33 pm 

Joined: Jan Thu 01, 1970 1:00 am
Posts: 1487
Location: Lafayette, CO
If you sold this one, one day you will wish you hadn't. There are upgrades to the power supply that are not all that hard but will require some re-wiring and changing tubes. The pilot lights are in series....easy to change that. I have a "boat" version (different cabinet) so l worked with the original tube arrangement. Mine had an open oscillator coil and open driver transformer feeding the 19 output. Others will chime in...Craig

 Post subject: Re: Zenith 6B129 radio
PostPosted: Jul Sun 16, 2017 3:15 am 
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Joined: Jan Mon 18, 2010 2:13 am
Posts: 15109
Location: Dayton Ohio
For my 6V27, I built this little power supply which plugs into the vibrator socket.

The 6B129 is pretty much the same radio circuit wise.

This allows you to operate the radio on AC while keeping it mostly original. I mounted the transformer under the chassis and wired in the power switch.
Also removed the battery cables. I put everything I didn't use in a plastic freezer bag and kept it with the radio.


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Radio Interests
-Pre-War FM
Consoles and floor models, the bigger, the better!
 Post subject: Re: Zenith 6B129 radio
PostPosted: Jul Mon 17, 2017 11:41 am 

Joined: Jan Thu 01, 1970 1:00 am
Posts: 19315
Location: Utica, NY 13502 (USA)
Since the radio was designed to run from a 6-volt battery, I built a simple, external power supply using a 6.3-volt, 3-amp filament transformer, diode bridge, a resistor, and two filter caps.


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