Ampeg tilt back leg dimensions

Jgonz

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Sep 9, 2016
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I'm trying to restore a 1964 Ampeg B-15. Does anyone have pictures and dimensions/measurements of the original 1960's tilt back leg/rod? I want to replicate it as closely as possible to the original (retention "clip" and all). Thanks for the help.
 
I’ve bought the aluminum rod at home depot and cut it to length.

fliptops.net sells their version of a tiltback kit with all the parts.

The images below are from a '63.

clip 1-small.jpg
clip 2-small.jpg
tiltback leg.jpg
 
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Are they the same dimensions as the tilt leg from a '72 B-15S? Mine is buried at the moment, but I could possible dig it out with some prodding.

The leg for my B-15S has a sort of circlip near one end. I was never sure whether its purpose is to prevent the leg from seating too deeply, or to ensure it's tight in the socket. :meh:
 
Are they the same dimensions as the tilt leg from a '72 B-15S? Mine is buried at the moment, but I could possible dig it out with some prodding.

The leg for my B-15S has a sort of circlip near one end. I was never sure whether its purpose is to prevent the leg from seating too deeply, or to ensure it's tight in the socket. :meh:

The clip is a compression ring, seen on the rod end is on some amps. It’s a lock to keep the leg from falling out. You can see it in the fliptops kit below.

EBD4E543-AFAB-4D4F-920A-9DB482B3A7A8.jpeg
 
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Thanks to each of you for your help. I have a 1/2" stainless rod that I was thinking of using because I thought the original was steel. Aluminum would be easier to work. I have the 2 mounting clips at the bottom of the amp, but the 1/2" rod didn't seem to seat too well, so I thought the diameter was smaller. How far from the end and what diameter is the compression ring?

I've read a lot of everyone's posts in other groups, and I've found them invaluable to repairing/restoring my Ampegs. Thanks to all. I have a '64 B-15, a '65 B-15, a '66 Gemini I, a '70 Blue line SVT with '73 straight back 810 cabinet, and a '76-'77(?) V-2. I think I need to join some of these Ampeg groups... or get some therapy???
 
Thanks to each of you for your help. I have a 1/2" stainless rod that I was thinking of using because I thought the original was steel. Aluminum would be easier to work. I have the 2 mounting clips at the bottom of the amp, but the 1/2" rod didn't seem to seat too well, so I thought the diameter was smaller. How far from the end and what diameter is the compression ring?

I've read a lot of everyone's posts in other groups, and I've found them invaluable to repairing/restoring my Ampegs. Thanks to all. I have a '64 B-15, a '65 B-15, a '66 Gemini I, a '70 Blue line SVT with '73 straight back 810 cabinet, and a '76-'77(?) V-2. I think I need to join some of these Ampeg groups... or get some therapy???

You have a nice selection of amps.

The thing about the aluminum rod is that it polishes very easily.

The clip holds the rod very tightly. The ends of the clips have indents to prevent it from sliding out.

I can’t answer your question about the ring. Maybe 0.5” from the end of the rod but that’s going by memory. There would be a standard size to use based on the rod diameter and the channel cut into the rod that the ring sits in. I’ve seen rubber O-rings used in similar applications.

Many rods that I’ve seen do not have the ring.
 
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IMG_0774.JPG


Okay, here is the tilt-back leg from my '72 B-15S. No guarantee that it's the same for any other model.

The aluminum rod is 1/2" in diameter and as close as I can tell is 10 3/16" long. There is a 1mm wide, 1mm deep slot located 1/2" from the end within which is a partial circle of spring steel wire running about 7/8 (estimate) of the way around it. Both ends of the aluminum rod have chamfered edges.
 
Wow, Farace. Thank you for the info. From what I've seen on the web, it looks pretty much like the other versions I've seen. The info about the compression retaining ring is great. I haven't seen this posted anywhere. It'll help me recreate it for my amp. Many, many thanks.
 
Thanks, beans-on-toast. Your info made me do something I've never done in the many years that I've had the amp - remove the clips from the bottom of the cabinet. I now see why the rod I have didn't fit - the indents you mentioned. I thought they were just clips - like what Fliptops has for sale now. With everyone's help, I'm hoping to finish restoring the cosmetics of the amp before I tackle the electronics...
 
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