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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 4:01 pm
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Be sure to start a new thread, lest the OP of this one become angered.

Arjay

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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 5:30 pm
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stratele52 wrote:
Very nice cab , you are ready for tolex job ;
One I do ;

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Image


Great Job !

Hope mine turns out as well !

cheers!

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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 6:28 pm
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Nice work. Bet that blonde era Bassman has unique, sweet tone.


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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 7:26 pm
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I decided to take a trip to the local craft store and picked up some acrylic water based paint. I thinned it out and applied two coats to the baffle. I'm not sure if paint can affect the way an amp sounds but I wanted to make sure I put a light to medium coat on the baffle. That way the wood can "breathe". Then I put the hardware back on and put a drop of red Loctite on the screws so they won't back out when I install or take off the speakers. I then painted them with a black paint marker. Hopefully the speaker grill won't show too much with the contrast from the hardware.
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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 8:03 pm
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Codyyy wrote:
Hopefully the speaker grill won't show too much with the contrast from the hardware.


Where in the hell is the logo shelf?

:shock:

Arjay

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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 8:15 pm
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I have no idea where the logo shelf is. Basically the baffle that came out of this amp was chipboard and was cracked through in multiple places. It was made for a 15" JBL speaker. I had Weber speakers make a pair of correct size speakers for this amp and told them I needed a correct baffle. They ended up having a baffle made for it. I simply put it together the way it came to me. Looks like I may need to contact them about that. I really wish the amp wasn't modified to begin with, these little details are making this simple job a lot more time consuming. I have what I believe to be the correct logo for this amp from the old baffle. I may need to head down to a woodworking place and make that piece.


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Post subject: Re: Baffle paint
Posted: Mon Apr 27, 2015 9:36 pm
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Is it possible that the baffle for the 1970 is a separate piece, then the grill frame and grill cloth is velcroed to the baffle? I would think it would make the grill cloth stick out too far but from what Google images has, it looks like it may be true. I have a few pics saved of what I believe to be an original grill frame for a 1970 and it is indeed velcroed on.


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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 1:51 am
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Codyyy wrote:
Then I put the hardware back on and put a drop of red Loctite on the screws so they won't back out when I install or take off the speakers. l]


No Loctite ;

1- You never know if you or other want or need to remove speakers
2- You don't need it ; use lock nut with teeth washer;

http://www.grainger.com/product/GRAINGE ... ?$smthumb$


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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 2:54 am
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Those T-nuts are incorrect for a 1970 Fender amp. This is the correct fastener for speaker installations......

Image

The larger portion of the shank is reverse-threaded to prevent the screws from backing out of the baffle board and the tapered stud helps align the holes in the speaker frame. Kep nuts with their integral star washer hold the speaker firmly in position when tightened to approximately 15 inch/pounds of torque (roughly ¼ turn beyond finger tight).

Arjay

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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 3:10 am
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Retroverbial wrote:
Those T-nuts are incorrect for a 1970 Fender amp. This is the correct fastener for speaker installations......




Arjay


+100


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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 3:11 am
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Retroverbial wrote:
Codyyy wrote:
Hopefully the speaker grill won't show too much with the contrast from the hardware.


Where in the hell is the logo shelf?

:shock:
From the Brown Face Bassman cab I work on ;

ImageArjay


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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 7:19 am
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I'll order the correct speaker screws from Fender. I had a feeling those t-nuts weren't correct. For the logo, I was going to make up a piece of wood to staple into that baffle like what was shown but the left speaker is considerably higher than that in the baffle. It is basically 1" from the top of the outside frame and touches the frame on the left side.
My cabinet has one block on each side and one long block on the bottom. The previous baffle was screwed in by these blocks. The blocks measure recessed in 1 1/4" from the outside of the amp. It looks like there may be enough room to fit the baffle and a grill frame in there.


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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 7:55 am
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Like Fender, I use 8-32 bolts, screw tight in the baffle with teeth washer and nut to hold speaker.

All available at Home Depot ......

The difficult part is to drill the holes perfectly straight to fit correctly with speaker basket holes .


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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 9:36 am
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The staggered speaker configuration for the Twin Reverb Amp was not introduced until model year 1971, coinciding with the debut of the separate velcro-attached grill frame. I don't know how much Weber charged you for the abomination that they sent but you can buy a complete baffle-board assembly from Larry Rodgers of Rodgers Amps for about $110. That includes the correct speaker-mounting hardware, proper grill frame with logo shelf, and reproduction grill cloth. It's a drop-in fit for any standard pre-1971 TR cabinet.

Arjay

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Post subject: Re: Baffle paint
Posted: Tue Apr 28, 2015 5:39 pm
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Arjay walked me through building my own baffle on a Bantam Bass Amp I refurbed and while my photographs are far from the best my baffle came out very nearly perfect. I spent way less than $100 for materials including the correct speaker mounting screws from Angeles Instruments (link below).
http://www.angela.com/fenderpurevintage ... nut12.aspx

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HTH

T2

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