Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

40-190 cabinet observation
#1

My 40-190 has those vertical, cross-grain stripes in the center. They are a blondish photo-finish. Where the photo-finish rubbed away, I can clearly see another layer of cross grain wood underneath. It is not blond but rather a shade the same or darker than the main mahogany on the cabinet. What's with that?
#2

DK, Generally, the panels in our cabinets are constructed with a core material that has a thin layer of wood on each side. The thin layer will have the grain running perpendicular to the core grain. This thin layer is called "cross-banding", sometimes simply referred to as "banding". The purpose of the cross-banding is to prevent splitting/cracking and warping of the core. I believe the wood you are seeing under the photo finish is this cross-banding.

Steve

M R Radios   C M Tubes
#3

Yes, I understand how plywood is made:

Quote:Plywood is made of three or more thin layers of wood bonded together with an adhesive. Each layer of wood, or ply, is usually oriented with its grain running at right angles to the adjacent layer in order to reduce the shrinkage and improve the strength of the finished piece.

But if I understand you correctly, that layer under the top mahogany veneer would have to be mahogany for me to be seeing open grained wood running perpendicular to the top under the faux wood. In which case, they would have had to remove the top veneer for those two stripes of faux cross banding. And from my experience, those stripes of faux wood are not that thick. I have a Motorola wooden table radio that had a 1" horizontal stripe of faux cross banding along the bottom and the middle. The case was terribly degraded, so I stripped the whole thing. The area with the faux grain was left with a very faint shadow where the wood was protected from UV. If you look close and I don't point out what I removed, you wouldn't know. But it's all nice smooth mahogany. My point is that the faux wood was merely applied over the wood. There's enough finish missing on my Philco where the missing faux wood grain meets the top veneer and I can see the edge of the top veneer. Look closely: don't you see an inlaid stripe of cross banding under the faux finish:

[Image: http://i191.photobucket.com/albums/z309/...le-153.jpg]

[Image: http://i191.photobucket.com/albums/z309/...le-154.jpg]
#4

OK, it is not what I was thinking. It looks to have an inlay made of real wood with a photo finish.

Steve

M R Radios   C M Tubes
#5

I was thinking--consulting my 40-190 cabinet--that it's an inlay with a darker grain filler, myself. Mine has been stripped completely of its original finish and instead of being lacquered was rubbed down with multiple coats of tung oil (it looks good enough that I'm not messing with it) and the mahogany pores are still there, just without the dark filler.
#6

So in this instance, if you didn't know that photo finish comes off with stripper, you would still have cross bands running down the front quite nicely! But what's up with having the photo finish over the inlay? They wanted more contrast?




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 2835 online users. [Complete List]
» 1 Member(s) | 2834 Guest(s)
Avatar

>