Ampeg B-115N

I know…
It’s so bad…





What am I TO-DO ????

Not only that…
Bob has acquired a '63 - '64 BrownFace’d Deluxe Amp…
We are going to open the Restore project on this amp…



Going to another topic…
I have a series of Photos to post on this one…





Bill…

Ampeg B115N Amp Restore update:

Today we got some photos of this amp posted over on the Ampeg B115N Bass Amp Restore Project Photo Blog…


Here’s some quick photos of what the Amp looks like as I acquired it…


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The Amp was originally ordered with an Altec 421 15" speaker… The standard speaker supplied was a CTS Model, or something…

Anyway, steady-as-it-goes…

Bill…

What’s in the big violin case?

You know, I only noticed it when I posted the photos up on WebShots, as I was replying to this thread…
We’re gonna be over there tomorrow gettin busy…
The documentation is almost complete till now…
So when I get there I’ll take some photos of whatever is in that case…


What I’m really interested in, is
that Burns Guitar… The pickups on that thing look so fascinating…



Bill…

it looks like the case to a japanese made violin style guitar from the 60s.

Well, we’re gonna find out what’s in that case tomorrow…
It might be a swinette… OR…
A blow-on tuning fork…

Who knows ????


Bill…

don’t get me goin… I need some sleep, sometime tonight…

I found out what’s in that fiddle case behind that Ampeg Bass Amp…


It’s a Lap Steel…
I had my camera out and just about to grab some photos…
Bob was on the Computer searching for a power transformer for that Brown Faced Deluxe Amp…
and I had the Lap Steel out of it’s case…
with the camera in my hands… If I get there today, I’ll grab some photos of it…
I promise…





Bill…

I forgot to grab some photos of that lap steel today…
I promise again…
I’ll try my best not to forget, next time…


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Here’s a peek at the speaker that’s in the cabinet…



All-in-All, this amp has not been abused… I have done some work on this amp over the years…
I tried my best not to replace and toss away parts …



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I love those speakers for Bottom End…
:agree:

Look closely,
The cabinet has a Baffle/Tuned/Port that makes that speaker sing out the Bottom End…

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Here’s a look at the bottom side of the chassis…


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If tomorrow works out we should be able to assemble a parts list…
We’ll see…
The place we are looking at is in Up-state New York, for parts…
Parts are gonna be pricey…




It appears that Ampeg has removed parts for amps that are not made by them, anymore…

sigh…






Bill…


Anyway, while I had the camera going I grabbed a photo of Bob’s latest acquisition… It has one beautiful pickup on it…


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Quote: (woxnerw @ Dec. 09 2010, 10:13 AM)

I forgot to grab some photos of that lap steel today..
I promise again..
I'll try my best not to forget, next time..


[URL=http://entertainment.webshots.com/photo/2256345880058559647qJHXLs]
Here's a peek at the speaker that's in the cabinet..



All-in-All, this amp has not been abused.. I have done some work on this amp over the years..
I tried my best not to replace and toss away parts ..





I love those speakers for Bottom End..
:agree:

A speaker with a washing machine attached. I knew Geddy Lee was on to something

Back Again:

Dating this serial number is kind of vague…
All the information we can find on the cabinet-and-chassis has it being made in January of 1974…





Ampeg Portaflex





B15N


Bass Amp





Ampeg Manufacturer Number





ASB15N





Model Number












141





Serial Number











72938





Chassis Bottom Plate Number




732326-1





Schematic Info











591722





Date
















1/22/74





(B)
















5922-1






©
















591722-2









Great… Love it… lol… hehehe can you find a wood stove to cook on ????

Quote: (woxnerw @ Dec. 08 2010, 4:26 PM)

Back Again:

Dating this serial number is kind of vague..
All the information we can find on the cabinet-and-chassis has it being made in January of 1974..





Ampeg Portaflex





B15N


Bass Amp





Ampeg Manufacturer Number





ASB15N





Model Number












141





Serial Number











72938





Chassis Bottom Plate Number




732326-1





Schematic Info











591722





Date
















1/22/74





(B)
















5922-1






©
















591722-2









Great..
Love it..
lol..
hehehe
can you find a wood stove to cook on ????

Bill! When is the 22nd month?
Man, how d'you work all that siht out - d'you have to research each aspect and it's numbers?

Hi TonyR:

There are a couple of photos in the blog that show the schematic on the chassis bottom plate…
My camera technic doesn’t show it very well but there is a date on the schematic print…


As you are all aware, I’m off work while I get cataract and lense transplants…
so my sight is quite poor…
So after we googled for a date code on Ampeg Amps we couldn’t locate a date anywhere on this model amp…
BUT after the search didn’t bring anything to the surface I got Bob with his magnifying glass to look at the schematic and sure enough, on the right-hand lower corner of the print there was a date…
Now this date may not be the date of this amp
BUT it could be the date of the assembly line RUN date of this series…
????




It’s a shame… Ampeg looks as though they don’t support any of their products that they are not building anymore…
sigh…

So, all of this restoration may fall under a third party parts supply…



Boy…
there are some real fanatics out there…
I happen to be an Amp Fanatic…
:)
:p
:laugh:






Bill…

O.K…

The Visa Card was charged 174.00 and change…
The parts order is on-it’s-way…
I expect to see it sometime between Christmas and Yew Year…


We’ll see…






Bill…

B-115N Update:

The parts order has arrived and today we began work on the chassis…
Removing Power Supply Capicators and overall inspection and all…


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Steady-as-it-Goes…







Bill…

Hi Gents:

We are back on this Ampeg B15N Restore Project…
I’ve updated the Photo Blog this afternoon…
We’ve also done away with the 4-pin XLR Speaker cable connection to the speaker cabinet…
The setup will now work with any 8-ohm speaker setup combination/cabinet setup…



This is the link to The B15N Photo Blog, for anyone interested in what’s going on, with the Amp…


We have it up-and-running…
with the original tubes that was in it when I acquired it, back before Christmas…
However, and as I recall doing maintenance on this amp over the years, the tubes are/were in desperate condition…


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We have a pair of Groove Tubes #10’s to replace the 6L6 output tubes…
The 5AR4 rectifier/power tube is O.K. ?
BUT the 6SL7 preamp tubes is another story…


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With the search I’ve done in an attempt to locate three 6SL7 tubes, that would be nice to have, they can run in the order of 100.00 each…
Outta the question for this FIX…
SO, we’ve decided to go for the meat-and-potatoes and manufacture a set of conversion/adaptor sockets so the amp can use three 12AX7 tubes, instead of 300.00 worth of 6SL7 tubes…
The next day will see this B15N running on a set of 12AX7 dual triode tubes…



We’ll see how the amp behaves with these tubes…









Bill…