Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default Tek 545B O'scope Fuse and Power

On Thu, 25 Apr 2013, Trevor Wilson wrote:

On 4/25/2013 6:36 AM, Noel Keith wrote:
Alright. I've done a whole lot in a short ammount of time. Cleaning
out the Oscilloscope was no simple task, but It's done. Dried and
everything. And, as luck would have it, my fuses arrived today. Now's
the really tricky part: finding the right fusecap.

Not so much as finding the right one, but making a temporary one
until I can find a replacement one. I've also brushed up on my
electronics vernacular, so I should have a much better idea of what
you guys are talking about now as well. Alright, so I haven't given
it much thought yet, but I've read in a couple of places that you can
make your own fusecap using a machine screw and some electrical tape.
Not sure on how WELL this would work, but I have plenty of
replacement fuses if something goes wrong so I'm not too worried. Is
there an easier way to do this? I mean, I can assume the head of the
machine screw would be on the outside while the other end would be
holding the fuse in place. Hmmm... Any better ideas?


**Install a new fuseholder.

No, he just needs the part that screws in.

I thought all of those were standard.

I know the problem, that $20 TMC GPR-90 I got at a garage sale back in
August just sits there, the part of the fuseholder that screws in missing,
I suspect I lost it on the way home (by bus, and walking along putting it
down every so often). I thought for sure I had plenty of the caps, but an
immediate search turned up none, and I haven't gotten around to looking in
the basement boxes. Of course, the rectifier tube is mechanically
unsound, so I need to dig the box of tubes out too.

Michael
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Default Tek 545B O'scope Fuse and Power

On 4/25/2013 12:06 PM, Michael Black wrote:
On Thu, 25 Apr 2013, Trevor Wilson wrote:

On 4/25/2013 6:36 AM, Noel Keith wrote:
Alright. I've done a whole lot in a short ammount of time. Cleaning
out the Oscilloscope was no simple task, but It's done. Dried and
everything. And, as luck would have it, my fuses arrived today. Now's
the really tricky part: finding the right fusecap.

Not so much as finding the right one, but making a temporary one
until I can find a replacement one. I've also brushed up on my
electronics vernacular, so I should have a much better idea of what
you guys are talking about now as well. Alright, so I haven't given
it much thought yet, but I've read in a couple of places that you can
make your own fusecap using a machine screw and some electrical tape.
Not sure on how WELL this would work, but I have plenty of
replacement fuses if something goes wrong so I'm not too worried. Is
there an easier way to do this? I mean, I can assume the head of the
machine screw would be on the outside while the other end would be
holding the fuse in place. Hmmm... Any better ideas?


**Install a new fuseholder.

No, he just needs the part that screws in.

I thought all of those were standard.


**I'm sure they were all standard in 1960.

It is 2013.

Things change and fuseholders are cheap and easy to obtain.

--
Trevor Wilson www.rageaudio.com.au
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Default Tek 545B O'scope Fuse and Power


"Michael Black"


**Install a new fuseholder.

No, he just needs the part that screws in.

I thought all of those were standard.



** ROTFLMAO !!

Fuse holder caps have NO standardisation !!!

There are literally many hundreds of incompatible designs.

A missing fuse cap means replacing the holder, in 99% of cases.



..... Phil


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Default Tek 545B O'scope Fuse and Power

Yes! There! Ok, so what I'm having to do is use a bolt that the fuse end sits in, and using electrical,tape to hold it in the fuse holder. I'll be damned... Everything works! Granted, some of the knobs need to be fixed a bit and I should probably calibrate it, but IT WORKS!

http://i.imgur.com/6wdKZvM.jpg

Now I just need a probe and some alligator clips! You guys have been really helpful, even if it may not seem so... I may end up replacing the fuse housing, but I really don't feel like I need to at the moment

Thanks again!
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