Zenith TO Knob Bright Removal
Posts: 112
Threads: 24
Joined: Oct 2016
City: Whitehall PA
Does anybody know of a non-destructive way to remove the knob brights from Zenith TO knobs. I have a pair for an H500 that are a pretty corroded and I would like to polish them. I think polishing them would be a whole lot easier if I removed them.
My only idea, and I don't like it, is to drill a small hole through the knob from behind until I hit the bright. Then I could try pushing it off of the knob from behind.
It doesn't seem like there is any space around the edges to allow me to pry them off.
Can't think of anything witty.
Greg O.
Whitehall, PA
Posts: 5,074
Threads: 269
Joined: Nov 2012
City: Bandon
State, Province, Country: OR
Welcome to the Phorum!
I do not think those brights come off easily.
Posts: 7,283
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Hi Greg and welcome,
Your up there by Bob, Klondike and he seems to have an affinity for Zenith sets too. I'm down by Philly. Removing the brights from the knobs w/o damage is going to be difficult at best as they are pretty thin. A better solution may be to just rip them out and replace w/a new one. Check your local hardware store for replacement knobs with brights for various things like light dimmers and such. Most likely you'll find something a bit larger remove and cut it down to size and fit.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 11-11-2016, 03:33 PM by Radioroslyn.)
Posts: 15,704
Threads: 551
Joined: Oct 2011
City: Jackson, NJ
If you are willing to risk (BTW, why?) - Try heat, see if they come off.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Posts: 2,118
Threads: 112
Joined: Jun 2010
City: Medford OR (OR what?)
(11-11-2016, 08:27 AM)morzh Wrote: If you are willing to risk (BTW, why?) - Try heat, see if they come off.
The knobs melt too easily. I am surprised by this one. Most of the brass falls off of the ones I have found and often has been lost. They may not be on there all that good - but good luck.
"I just might turn into smoke, but I feel fine"
http://www.russoldradios.com/
Posts: 7,283
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
(11-11-2016, 02:37 PM)Phlogiston Wrote: (11-11-2016, 08:27 AM)morzh Wrote: If you are willing to risk (BTW, why?) - Try heat, see if they come off.
The knobs melt too easily. I am surprised by this one. Most of the brass falls off of the ones I have found and often has been lost. They may not be on there all that good - but good luck.
Hi Guys
You also may find that the corrosion is bad enough that you can't make them look good anyway. If those where made now days they have some sort of gold tone plastic piece. I wonder if there is a gold tone plastic tape??
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 11-11-2016, 03:29 PM by Radioroslyn.)
Posts: 5,074
Threads: 269
Joined: Nov 2012
City: Bandon
State, Province, Country: OR
Greg, what model TO do you have? I have two knobs from an 8G005 that are not too bad and which you would be welcome to, but I think from the description you have a model with solid brights in the center of the knob.
[Image: https://dl.dropboxusercontent.com/u/5462...005_35.jpg]
Posts: 112
Threads: 24
Joined: Oct 2016
City: Whitehall PA
Now that the chassis' done I've gotten around to the cabinet.
I haven't decided how to remove the brights yet, but I did try buffing one on the knob. Do you know that if you buff it enough brass turns to silver  -- oops! They're so small, I figured they'd be solid brass.
I'll either get some plating compound and fix the originals or take the coward's way out and use the spare, bright-less knobs I have with the repro brights I got from Antique Electronic Supply a while back. They don't seem to carry them any more.
Can't think of anything witty.
Greg O.
Whitehall, PA
Posts: 4,686
Threads: 51
Joined: Sep 2008
City: Sandwick, BC, CA
Maybe you could try the opposite of heat with the knob brights, freeze them instead and the glue might give out.
Regards
Arran
Posts: 667
Threads: 11
Joined: Sep 2014
City: Bellmawr, NJ
just go over top of them,,,,,GLUE ????
Posts: 112
Threads: 24
Joined: Oct 2016
City: Whitehall PA
I thought about trying to freeze them. If it was cheaper I would buy some of the wart remover spray and freeze try freezing the brights in the hope they would shrink enough to crack the glue beneath them.
The other thing I thought of was to glue something to the tops of them and try to pull them off. However I think that could end badly. I don't know what would stick and if it did how I'd get it off...
Maybe if I wait 65 more years they'll fall off on their own.
Can't think of anything witty.
Greg O.
Whitehall, PA
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
Philco 91 Speaker Replacement
|
| The spider is glued on the cone and so is the voice coil. I think you can use a cotton swab dipped in acetone and carefu...RodB — 02:42 PM |
|
Restoring Philco 37-604C
|
| Yes I saw that. If I knew, I'd probably try to arrange for getting it myself. But I have just got one.
Which does not m...morzh — 01:44 PM |
|
Philco 38-2 Automatic Tuning
|
| When you push the lever, you are supposed to rotate the disk to the desired station.
Then the magnetic tuning will acqu...morzh — 01:42 PM |
|
Philco 38-2 Automatic Tuning
|
| I figure out the muting from another picture that helped. Now I need to know how the automatic tuning works. When I push...dconant — 12:11 PM |
|
Philco 91 Speaker Replacement
|
| How would I go about removing the spider from the cone?dconant — 12:04 PM |
|
Philco 38-2 Automatic Tuning
|
| Hello, I am having trouble getting my automatic tuning to stay unmuted. If I play with the tuning handle I can get it to...dconant — 10:51 AM |
|
Does anyone make photofinish replacements?
|
| Here’s the link to the DIY photofinish section of our site:
klondike98 — 09:46 AM |
|
Delco car radio Peko vibrator converstion issues
|
| Hi Richard,
Thx for posting the schematic. As I remember as a kid, these were great performers for the time, likely...MrFixr55 — 08:56 AM |
|
Delco car radio Peko vibrator converstion issues
|
| hello mr Fixr,
The Electro Powersupply that I am powering the radio with has a huge choke plus a 10,000ufd electrolyti...radiorich — 10:58 PM |
|
Delco car radio Peko vibrator converstion issues
|
| How about putting a choke in the power supply?
The big cap was likely an attempt to stabilize the DC. Kids who cre...MrFixr55 — 09:19 PM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
