Amp Fuse Cap Woes

At this point it might be easier to replace the entire fuseholder than to find a matching end cap.

BK/HTB-22M-R Bussmann / Eaton | Mouser

 

Hi ltrain2015

Fixed!

greetings

Wise(b)ass

 

This is a possibility. The fuse size has to match.

Fender, SWR Fuseholder with cap 3AG, 0036702049 | Parts Is Parts - Guitar Parts, Amplifier Parts, Korg Keyboard Parts

It would cost a lot less if you could find one locally at an amp repair or even an electronics fixit shop.

 

Match what? If you're starting over, all it has to do is work. It's as easy to find 5x25 and 5x30 mm holders as it is to find 5x20 if that's an issue.

 

What I was saying was....

Some older amps had panel mount holders for 1/4” x 1 1/4” (6.3 x 32mm) fuses, the caps were bayonete push and turn style. Caps for these type of fuse holders are available. I used to buy fuse holder caps by the box. People tend to loose these things. There’s a good chance that a local tech might have one that will fit available.

Holders for different sized fuses may look similar but will not fit. The caps may have a long metal barrel and could be a different diameter.

So it is important to identify the fuse holder cap size, the style, and how the it attaches, bayonete or screw on.

For DIY, a new fuse holder and cap is easier to deal with. It isn’t necessary to search for the right part, you simply buy and install a similar sized assembly. This might involve soldering. If the current fuse holder has (non solder) terminals for faston connectors, then they have to be the right size.

 

Most real service shops have a box of fuse caps for exactly this reason.

 

Hey!
John still has some of my original rubber strap locks that I made in 1990.
The first ones that were ever made were called Rubbers and I found one on the floor of a recording studio in
1982 ish.

 

I’ll look tomorrow. I use to have some of these from back in my SWR days. I get back to you tomorrow with my findings.