111 grillcloth cardboard frame.
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
Jamie
If I knew where to buy them tongue depressors...Where is MASH 4077 when you need it.
Well, will drop by Michaels tomorrow, see what is there.
Posts: 736
Threads: 26
Joined: Jun 2013
City: Hayward, California
or maybe popsicle sticks...at your grocery store.
Posts: 2,572
Threads: 337
Joined: Jun 2013
City: lawrenceville nj
hey morzh
theirs a new hobby lobby here in Lawrenceville
sam
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
Sam
Like Michaels or more towards technical side?
Mike.
Posts: 761
Threads: 56
Joined: Jul 2013
City: Kentucky
Hobby Lobby is sort of like a super Michaels. It's a lot better, but not really oriented to electronics. You can get popsicle sticks at the grocery store.
The artist formerly known as Puhpow! 8)
(This post was last modified: 05-13-2014, 07:08 PM by Jamie.)
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
Well, Michaels is 2 miles away....
Posts: 348
Threads: 48
Joined: Oct 2013
City: Tioga, Texas, USA
If the board material is too far gone, you might want to look at some MDF panel material at Lowe's or Home Depot or your local lumberyard. I had to use some MDF material to replace a crumbling grill cloth backing board on my 40-201. It worked well and was about the same thickness and the original material.
Joe
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
I went to Michaels, bought a matting frame...looked at it awhile....today brought it back and returned it. I need some masonite/mdf for it. Cardbord won't do well in there.
Posts: 4,109
Threads: 310
Joined: Nov 2013
City: Kings Park NY
I could have mailed you a piece of original backer board by now. I can just give it to you when we get together.
Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
OK, thanks Kirk. It can wait.
Posts: 2,118
Threads: 112
Joined: Jun 2010
City: Medford OR (OR what?)
There is a card-like material, about a 1/8 of an inch thick used to protect stacks of Masonite and other materials in transport. It is very much like the material inside of old car door panels. Many hardware dealers save it. I purchase sheets of 4' X 8' for around $3.
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
To be perfectly honest, the more I look at the panel the more I wonder if these 4 beams have any role in keeping the cloth taut at all.
I mean, they are 1/2" wide flexible beams whereas the panel itself is over 1" wide on each side, which makes it the main stretching force for the cloth. if anything they are flexible and somehow I think they suffered their fate exactly for that. Those that are not broken off are still cracked at where they meet the circumference of the frame.
I wonder if I should even bother.
Posts: 1,562
Threads: 56
Joined: Nov 2008
City: Sedona, AZ/Placentia/CA
Mike, if the grill cloth was not glued to them or even if it was, I suspect that those are there to keep the grill cloth from jumping back and forth with the speaker putting out some strong sound.
Jerry
A friend in need is a pest! Bill Slee ca 1970.
Posts: 15,832
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
It was not glued to them or there'd be some glue residue on both the cloth and the strips, and possible damage.
yes I suspect it is there to keep the cloth to be sucked in (maybe) during a strong pull because a strong push they cannot keep it from unless it was glued to them (which it wasn't).
(This post was last modified: 06-02-2014, 03:48 PM by morzh.)
Posts: 736
Threads: 26
Joined: Jun 2013
City: Hayward, California
I would say the main reason they are there would be just to help keep the shape of the cloth. Without it, the cloth would stretch easier and wouldn't be as taught after some time. Just a little bit of backing to keep its shape longer. Surprising what just a little will do to help keep its shape. Is it probably broken some from being bumped again and again over the years.
Users browsing this thread: 1 Guest(s)
|
Recent Posts
|
Philco 60 Squealing
|
Usually a wave trap is for keeping IF signals from entering the antenna and from leaving the antenna. You feed an IF sig...RodB — 09:30 PM |
Philco 60 Squealing
|
I just peaked it for the best signal at 600.
NULL it for IF frequency, originally it would have been null for 500kh...Chas — 08:05 PM |
Philco 60 Squealing
|
Wavetrap no longer matters.morzh — 05:19 PM |
Philco 60 Squealing
|
Rod, I had checked out your suggestions but did not help. I did solder the ground rivets to the chassis as Chas suggeste...dconant — 04:52 PM |
37-690 Bass Choke Replacement
|
Yeah, I know, Mouser and Digikey don't have "big iron" components. For some reason Philco was messing with the...Radiodial — 04:25 PM |
37-690 Bass Choke Replacement
|
Yes, I just had to deal with that while repairing the 37-604 Philco. Exactly that value choke was gone. And the current ...morzh — 03:52 PM |
37-690 Bass Choke Replacement
|
Ah, now where to find one.
I've into this before on smaller sets, I now recall. Hammond makes one that is only rated...Radiodial — 03:27 PM |
Philco 38-7 Speaker
|
Ask the admins to put them together.
As for the renaming, while inside the thread, you simply press "New reply&quo...morzh — 02:23 PM |
37-690 Bass Choke Replacement
|
This is the parts catalog.
32-7528 choke is 65H, 10mA, 2,250 Ohm inductance.
Find a suitable one.morzh — 02:18 PM |
37-690 Bass Choke Replacement
|
While troubleshooting the no bass amplification issue, I think I found the culprit. The choke #104 is reading 164K ohms....Radiodial — 01:42 PM |
Who's Online
|
There are currently 3039 online users. [Complete List] » 1 Member(s) | 3038 Guest(s)
|
|
|
|