I fixed a radio My 1937 Zenith 5S-127 radio uses a belt to drive the dial mechanism. The original belt was some sort of rubberized cloth that was disintegrating when I got the radio at an auction about 25 years ago. At that time I replaced the belt with an o-ring that I cut to the right length and glued. The glue bond lasted a couple months, and the radio has been sitting with an non working dial mechanism ever since. Yesterday I opened it up, retrieved the o-ring, made some measurements, and 3D printed a new belt using TPU filament. radio%2Bbelt.jpg mod_embed_images_loadimage('ad493d3f290c3c349356352b16a0f0d2', '/forum/thumbcache/2f5/83f/276/c34/d41/014/1fc/b43/929/5ba/98_800x400.png', 'https://1.bp.blogspot.com/-hneeeBKSS8k/XgL3oDKPnVI/AAAAAAAAn1w/JV3oUHDpbhAF9M0XoJlMN2hg75sVZz6dACLcBGAsYHQ/s1600/radio%2Bbelt.jpg', 'https://reprap.org/forum/addon.php?166,module=embed_images,check_scaling=1,url=https%3A%2F%2F1.bp.blogspot.com%2F-hneeeBKSS8k%2FXgL3oDKPnVI%2FAAAAAAAAn1w%2FJV3oUHDpbhAF9M0XoJlMN2hg75sVZz6dACLcBGAsYHQ%2Fs1600%2Fradio%252Bbelt.jpg', '', 864656, 800, 400, 'Loading image ...', false); The radio is working again... zenith%2B5s-127%2Bradio.jpg mod_embed_images_loadimage('eb534c310d9dede8bd1d2f80d51ea775', '/forum/thumbcache/e3c/9d9/f29/733/bcc/2e4/4e8/3d5/2c4/49f/63_800x400.png', 'https://1.bp.blogspot.com/-ZtFWx6KrBPU/XgOcNxL8G-I/AAAAAAAAn3E/-7zNFunBF0E10ZhQIg96rg-A7yXrOXhDgCLcBGAsYHQ/s1600/zenith%2B5s-127%2Bradio.jpg', 'https://reprap.org/forum/addon.php?166,module=embed_images,check_scaling=1,url=https%3A%2F%2F1.bp.blogspot.com%2F-ZtFWx6KrBPU%2FXgOcNxL8G-I%2FAAAAAAAAn3E%2F-7zNFunBF0E10ZhQIg96rg-A7yXrOXhDgCLcBGAsYHQ%2Fs1600%2Fzenith%252B5s-127%252Bradio.jpg', '', 864656, 800, 400, 'Loading image ...', false); You can't buy a radio like this and expect it to work. I restored the electronics by replacing failed components many years ago, then refinished the cabinet. More here. https://reprap.org/forum/read.php?166,864656,864656#msg-864656 Fri, 17 Apr 2026 07:46:17 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?166,864656,865445#msg-865445 Re: I fixed a radio https://reprap.org/forum/read.php?166,864656,865445#msg-865445 do you hear
"Hello Mr and Mrs America and all the ships at sea"

Some one born in 2000 would never know what it is?

Put an arduino w blue-tooth in it, so you can listen to it with your air pods
and a stepper motor on dial drive, so you can tune it from an app!

:S]]> cozmicray Look what I made! Wed, 08 Jan 2020 14:59:08 -0500 https://reprap.org/forum/read.php?166,864656,864714#msg-864714 Re: I fixed a radio https://reprap.org/forum/read.php?166,864656,864714#msg-864714 MechaBits Look what I made! Thu, 26 Dec 2019 17:46:43 -0500 https://reprap.org/forum/read.php?166,864656,864668#msg-864668 Re: I fixed a radio https://reprap.org/forum/read.php?166,864656,864668#msg-864668 the_digital_dentist Look what I made! Wed, 25 Dec 2019 17:33:04 -0500 https://reprap.org/forum/read.php?166,864656,864663#msg-864663 Re: I fixed a radio https://reprap.org/forum/read.php?166,864656,864663#msg-864663
Quote
Roberts_Clif
This is what I should do with My Summa Sign D610 24 inch vinyl cutter.
The only differences is I need a Rubber Tire (" Tyre ") for the Pinch rollers.
I rigged three faucet washers together with rubber glue to form a single wide Tire around the original bearing this seems to work though it is not quite the right diameter.

You can do the part with TPU too ! To get the correct dimension , roundness, finish use abrasive wheel on a Dremel for ex. ABrasive is perfect to machine TPU.]]> MKSA Look what I made! Wed, 25 Dec 2019 15:14:39 -0500 https://reprap.org/forum/read.php?166,864656,864660#msg-864660 Re: I fixed a radio https://reprap.org/forum/read.php?166,864656,864660#msg-864660 The only differences is I need a Rubber Tire (" Tyre ") for the Pinch rollers.
I rigged three faucet washers together with rubber glue to form a single wide Tire around the original bearing this seems to work though it is not quite the right diameter.]]> Roberts_Clif Look what I made! Wed, 25 Dec 2019 14:11:39 -0500 https://reprap.org/forum/read.php?166,864656,864656#msg-864656 I fixed a radio https://reprap.org/forum/read.php?166,864656,864656#msg-864656
Yesterday I opened it up, retrieved the o-ring, made some measurements, and 3D printed a new belt using TPU filament.



The radio is working again...



You can't buy a radio like this and expect it to work. I restored the electronics by replacing failed components many years ago, then refinished the cabinet.

More here.
]]> the_digital_dentist Look what I made! Wed, 25 Dec 2019 12:31:54 -0500