Looking for JBL " Pro Note " Vol. 1 Issue # 6 and # 7 July 1973

[JBLPRO]

Anyone out there in vintage JBL land happen to be able to share a copy of:
JBL " Pro Note" Vol. 1 Issue # 7 July 1973
JBL " Pro Note" Vol. 1 Issue # 6 Jan 1973

I really enjoy reading these... And I cannot find them anywhere! Or any other Pro Notes with the exception of what is archived in the library here. EarlK had them at some point if I recall correctly.

Thanks SO much,

mike

[Robh3606]

Look at the sticky threads up top for the tech notes


https://www.cieri.net/Documenti/JBL/Technical%20Notes/Tabella%20Technical%20Notes.htm

This is all we have for the Pro notes

http://www.lansingheritage.org/html/jbl/reference/notes/notes.htm


Rob :)

[Earl K]

Anyone out there in vintage JBL land happen to be able to share a copy of:
JBL " Pro Note" Vol. 1 Issue # 7 July 1973
JBL " Pro Note" Vol. 1 Issue # 6 Jan 1973

I really enjoy reading these... And I cannot find them anywhere! Or any other Pro Notes with the exception of what is archived in the library here. EarlK had them at some point if I recall correctly.

Thanks SO much,

mike

Mike,

I have both of those. I'll post some scans within a couple of days for you.

:)

[Earl K]

Look at the sticky threads up top


https://www.cieri.net/Documenti/JBL/Technical%20Notes/Tabella%20Technical%20Notes.htm


Rob :)

Rob, I don't see any PRO-NOTES" in your link.

( For the sake of clarity ), the JBL "PRO-NOTE" series is different than the Technical Notes series.

The "PRO-NOTE" was available only to dealers and really aimed at Installers ( IMHO ) .

Also, their publication ( throughout the 1970's ) wasn't yearly or continuous by any means ( for example, there's a 4 year long gap between "issue 7" & "No. 8" ).

:)

[Robh3606]

Hello Earl

I misread it and then updated

Rob:)

[JBLPRO]

Mike,

I have both of those. I'll post some scans within a couple of days for you.

:)

A BIG thank you is in order!

mk

[Earl K]

Let's see if these uploads work.

Nope, way too big ( they are multi-page pdf's, scanned at 720 dpi ).

JBLPRO, I'll need an email address from you so that I can send you these files.

Please send me a PM that includes that address.

:)

[Robh3606]

Hello Earl

If you can scan them as Jpegs they should be small enough to post.

Rob :)

[Don C]

I've found that 150 DPI is about right when scanning for web posting.

[Earl K]

Here's Issue 6 at 150 dpi.

90487904889048990486


Thanks for the help guys

:)

[Earl K]

Here's issue 7 at 200 dpi .

90490904919049290493

:)

[Earl K]

Okay, let's try 240 dpi;

90494904959049690497

Auto down-sampling performed by this sites hosting software seems to work well ( it reduces file size something like 4>1 ).

:)

[Earl K]

Here's Issue 3;

90498904999050090501

:)

[Earl K]

Issue 4 ( Dec. 1971 );

90502905039050490505


:)

[Earl K]

Issue 5;

90506905079050890509

:)

[Earl K]

Issue 8 ( I went back to 200 dpi a couple of issues ago ) .

9051090511905129051390514

Interesting ( to me ) is that the scans from the glossy paper issues ( 1 - 7 ) have less over-contrast problems ( than the plain-paper publications of No.8 + No.9 ) .

:)

[Earl K]

And the last one in my possession;

90515905169051790518

:)

[Robh3606]

Thanks Earl for posting these.

Rob:)

[JBLPRO]

Thanks Earl for posting these.

Rob:)

Earl,

Thanks you for following up and taking the time to scan and post these PRO-NOTE publications for all of us to enjoy here in the forum.
Some really great nostalgia contained in these vintage internal/dealer publications. I love the cartoons that are included on the pages. And I want to know where I can get an official factory JBL SLIDE RULE! :)

mk

[Earl K]

Earl,
Thanks you for following up ,,,, mk


Thanks Earl for posting these.



You're welcome guys! I was happy that my WinXP era printer//scanner actually worked with Win10 ( even though it kept insisting there was a USB based connection problem ) ;)

Yeh, that JBL slide-rule is pretty cool. Anyone else notice there's some long-haired dude ( attending one of the conferences pictured ) that looks a lot like John Meyer did ( back in the day ).

:)

PS; Thanks Rob for the sticky status.

[Odd]

Thanks Earl have not seen these before.

[Mr. Widget]

Thanks Earl have not seen these before.Yes, thanks Earl!

I have a couple of them somewhere myself... the analog archives. ;)
Always fun to take a quick spin down memory lane.


Widget

[robertg]

Earl,

And I want to know where I can get an official factory JBL SLIDE RULE! :)

mk

I used to have these, I wonder if this is the JBL slide rule? I sold them on eBay for $40.00.

[JBLPRO]

I used to have these, I wonder if this is the JBL slide rule? I sold them on eBay for $40.00.

YES, that is the JBL factory slide rule. Well now at least I have a pic!

[Jekyll]

Thank you Mr Earl K for sharing these documents. :hurray:
Now I have the answer to this old question: does a 2470 with a D16R2420 become a 2420?

[engineerjoe]

Great stuff posted!
I used the 4550 bins, 4560s, double scoops, and JBL 2441 drivers on 60 and 90 degree horns into the 80s! I can't even imagine, carrying those around now.
Looking thru the notes, I used a lot of that old stuff. Those super long throw JBL horns sat in our warehouse waiting for an outdoor show that never came.