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bigyank
04-01-2010, 02:14 PM
So I picked up a pair of C38's from Fred Sanford. :)

http://i165.photobucket.com/albums/u60/bigyank_19320/JBL%20C38/P1010206.jpg

Somebody before both of us decided for whatever reason to paint them white.....:biting: Would love to know their history.

http://i165.photobucket.com/albums/u60/bigyank_19320/JBL%20C38/P1010205.jpg

From what I have read these are the earlier version based on the rectangular port. Is that correct?

I am trying to somewhat eco-friendly so I am using Ready Strip.

http://i165.photobucket.com/albums/u60/bigyank_19320/JBL%20C38/P1010207.jpg

Not 100% sure but most likely will try some JBL parts I have on the shelf once I get the cabinets ready. Will be a veneering test for me long term.

Yank

SMKSoundPro
04-01-2010, 02:23 PM
Looks like the perfect hole for a 175/potato masher horn combo. I have a pair sitting right here with period correct brand new 2410 diaphragms in them.

Let us know what is under the paint, and that is the same stripper Lisa and I used for a pair of Valencias. It worked really well. We layed in on with a wide brush, then covered it with a layer of plastic to kepp it from evaporating away.

Scrap off the goo/paint, and continue!

Scotty.

Wagner
04-01-2010, 02:26 PM
You will be pleasantly surprised once you remove the paint.

Wash them down good after you strip them, with acetone or MEK.

The blond veneer will really POP; fill those holes with Famowood and you may not have to re-veneer.

JBL used a lot of tinted topcoats to obtain various finishes (colors/species?)
At least that has been my findings on the boxes I have striped and cleaned up from that period.

Another popular option: people seemed to like to slop on them at some point was "antique" finish; basically a crude brown paint job. :bs:

I have a hunch you will be amazed at what you find underneath, but that final wash is critical to achieve nice clear, clean grain.

Thomas

Audiobeer
04-01-2010, 04:11 PM
Take particular care of the corners on the face. They seem to pop real easy!

Fred Sanford
04-01-2010, 05:17 PM
Looks like the perfect hole for a 175/potato masher horn combo. I have a pair sitting right here with period correct brand new 2410 diaphragms in them.

Scotty.

These originally had an 030 load, bullets (w/adapter plates?) & D130s.

http://www.audioheritage.org/vbulletin/showpost.php?p=239273&postcount=1

I believe they were painted white & had doors stuck on them when they were integrated into somebody's closets/built-ins.

je

Wagner
04-01-2010, 05:17 PM
If you work smart, the acetone or MEK wash may even preclude the need to even sand, other than just the lightest finishing go over to smooth the grain.

They used veneer of exceptional quality on those old boxes, but it wasn't very thick. I like to avoid as much sanding as possible unless it's unavoidable.

Thomas

lgvenable
04-01-2010, 08:06 PM
you can swell veneer to remove small marks, then sand lightly.Use methanol and water, after wiping it on you can also use a steam iron; but be careful. the glues that hold veneers on are heat activated.;)

when using a steam iron I use a cotton tee shirt between the veneer and the iron, NO direct contact.

SMKSoundPro
04-01-2010, 09:54 PM
I thought these could mount right in: Hole looks about right.

See Link: http://www.lansingheritage.org/images/jbl/catalogs/1957/page8.jpg

The famous 001 system!!!

A 130A (16 Ohm) and 175 with lense and N1200.

I have a pair of 2220 -16 ohmer all coned up and just sitting here. We would need the vintage N1200 crossover. Shouldn't be too tough to find a pair.

SMKSoundPro
04-01-2010, 10:16 PM
Ok. How about these: http://cgi.ebay.com/JBL-N1200-CROSSOVERS-PAIR_W0QQitemZ190384658240QQcmdZViewItemQQptZVinta ge_Electronics_R2?hash=item2c53cf5740

They look abit rough...

But here: http://cgi.ebay.com/JBL-Signature-Sound-C34-enclosure-w-N1200-Crossover_W0QQitemZ150396097632QQcmdZViewItemQQptZ Vintage_Electronics_R2?hash=item23044e5460
for $1500 each?

opimax
04-02-2010, 04:11 AM
are you trying to mess up my CD holder? :D

Mark

bigyank
04-02-2010, 05:27 AM
are you trying to mess up my CD holder? :D

Mark

:thmbsup:

Yes I am. I originally got these to practice my veneering but the warm weather got the DIY bug going......:D

Yank

opimax
04-02-2010, 09:10 AM
I prefer wood to paint so go ahead and fix up the outside nicely , just make sure at least 1 shelf can hold DVDs too, different height

Mark

Wagner
04-02-2010, 09:59 AM
This pair is just plain wrong; wrong network for mating what appears to be the 075 to a 130A
N1200 is twice too low; there'll be a BIG hole in there somewhere, assuming the 075s have survived
I think the cabs, although not terrible, are home built as well
Pretty ambitious seller! :D

http://cgi.ebay.com/JBL-Signature-So...item23044e5460 (http://cgi.ebay.com/JBL-Signature-Sound-C34-enclosure-w-N1200-Crossover_W0QQitemZ150396097632QQcmdZViewItemQQptZ Vintage_Electronics_R2?hash=item23044e5460)

Thomas

Wagner
04-02-2010, 10:07 AM
I thought these could mount right in: Hole looks about right.

See Link: http://www.lansingheritage.org/images/jbl/catalogs/1957/page8.jpg

The famous 001 system!!!

A 130A (16 Ohm) and 175 with lense and N1200.

I have a pair of 2220 -16 ohmer all coned up and just sitting here. We would need the vintage N1200 crossover. Shouldn't be too tough to find a pair.


You're gonna love it when you're done; especially if you like Jazz!

Might I suggest, a small, good quality tube amp will give you the best results in my opinion. For some reason, much more bass (and it's very good) with tubes.

Enjoy and good luck!

Thomas

Wagner
04-02-2010, 10:20 AM
This pair is just plain wrong; wrong network for mating what appears to be the 075 to a 130A
N1200 is twice too low; there'll be a BIG hole in there somewhere, assuming the 075s have survived
I think the cabs, although not terrible, are home built as well
Pretty ambitious seller! :D

http://cgi.ebay.com/JBL-Signature-So...item23044e5460 (http://cgi.ebay.com/JBL-Signature-Sound-C34-enclosure-w-N1200-Crossover_W0QQitemZ150396097632QQcmdZViewItemQQptZ Vintage_Electronics_R2?hash=item23044e5460)

Thomas


Not 130As either on second look; hopefully by the dust cap, D130s

I wonder about a seller that can't read the label on the back of the driver, unless they've been re-coned at some point (to give him the benefit of the doubt)

Now after spending $3K for these home brews, all the buyer has to do is find some N2600s and he'll be set! :bouncy:

Thomas

bigyank
04-03-2010, 05:40 AM
You're gonna love it when you're done; especially if you like Jazz!

Might I suggest, a small, good quality tube amp will give you the best results in my opinion. For some reason, much more bass (and it's very good) with tubes.

Enjoy and good luck!

Thomas

I will be filling the inside of these with some drivers off the shelf. Control-10 woofers (119HS-1) will anchor using an MDF adaptor similar to what JBL offered when a 12" woofer was ordered. Beyond that is still TBD. Bottom line I will be using a Yamaha M-70 to drive them. :applaud:

Not for a while though......

Yank

bigyank
04-08-2010, 07:03 AM
So I have been working on the cabinets getting the white paint off and so far so good. :applaud:

I do have a question though and that is if I have read correctly, the cabinets I have now in my possession are the older series (rectangular port). Ultimately I want to get badges for the grills and wondered which ones would be the correct ones. Anyone have pics of these?

Yank

eso
04-08-2010, 09:14 AM
You will be pleasantly surprised once you remove the paint.

Wash them down good after you strip them, with acetone or MEK.

A mixture of Lacquer thinner and MEK works really well. A furniture re-finisher I know turner me on to that. The MEK effectively retards the Lacquer thinner evaporation and really cleans the pores out.

Use adequate ventilation, a respirator and keep away from sparks and flame...


eso

Baron030
04-08-2010, 09:54 AM
Hi Yank

Here a link to some pictures of the badges and some grill cloth info as well:

http://audioheritage.org/vbulletin/showthread.php?t=13844

Unfortunately, I have not found a source for “Goat Hair” grill cloth.

Best of luck on your project,
Baron030:)

bigyank
04-08-2010, 09:58 AM
Thanks I read through that thread and they came out great. You posted 2 pics within the thread showing 2 different badges. Can you tell me which one would be the "correct" one for my pair?

SMKSoundPro
04-09-2010, 12:14 AM
Okay! Eureka!
Here's the 130A's:
http://cgi.ebay.com/Rare-Vintage-JBL-D130a-D-130a-Low-Freq-Drivers-MINT_W0QQitemZ190387569789QQcmdZViewItemQQptZVinta ge_Electronics_R2?hash=item2c53fbc47d

Here's the N1200's!!
http://cgi.ebay.com/Rare-Vintage-PAIR-JBL-N1200-Crossover-Dividing-Networks_W0QQitemZ190387589942QQcmdZViewItemQQptZV intage_Electronics_R2?hash=item2c53fc1336

Okay now, with the 2410 and potato masher horn, you are seriously set to go!!!

I can't wait to hear them! I have the Pas 2 preamp/Dynaco mark III amps with good Genelec KT88's, or the Fisher 800b with good 7591's. Oh yea baby! I even have a conrad-johnson pre just in case.
It will look funny with a technics 1200 turntable, but we will find an old solid Rek-o-cut table, you'll see!!! You know, with the really neato arm and needle!

I'll ask Lisa to model with them in her vintage dress just like the 1956 JBL catalog photo of the Hartsfields! Way cool. In blk & white, or sepia tones... She'll get her hair done like all those Julie London or Rosemary Clooney album covers.

You guys are really on to something here.


I am really digging this project now!

Scotty.

(living vicariously through others, one speaker at a time.)