Author Topic: Is it just me or is this totally unsafe?  (Read 11837 times)

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Offline westfw

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Re: Is it just me or is this totally unsafe?
« Reply #25 on: January 22, 2012, 01:49:51 am »
Did you know that you can go to almost any store and buy both a plug-in electrical cord and scissors at the same time?  Shocking!

Tube-era construction projects were pretty amazing by today's standards, and this seems about par for the course.  Shucks, tube-era commercial products were amazing.  That's from before PCBs and even perfboard; wiring was frequently just point to point.  Check this one out:  http://www.instructables.com/id/Building-A-Stereo-Tube-Amp/

(and yeah,  kits frequently bypass a bunch of safety regulations.  If you can assemble the kit, you're assumed to have an idea of what you're doing.)
 

Offline PStevensonTopic starter

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Re: Is it just me or is this totally unsafe?
« Reply #26 on: January 22, 2012, 11:23:52 am »

point to point wiring is a hell of alot safer than using perfboard in a valve kit.
in fact if I was going to make something with a valve in it (and that isn't going to happen anytime soon) I would use point to point, PCBs in general aren't that good for them because they tend to warp (as I've seen in a few of my marshall amps)

that amp on instructables looks bloody ridiculous, not unsafe just pointless. use something like a STK4152 or even a TDA2030 and make a decent solid state amp!

you should never assume anything with a kit business, even on the last amp hour D & C were talking about the makerbot where the owner said he was constantly having to help out people who just shouldn't be building a kit like that. people tend to just see the price tag not the potential issues, they also think they can follow instructions until they see that schematic.

I'm not normally a safety conscious type, I just have certain thresholds and pissing about with 400 volts is one of them, I know it hasn't been confirmed the voltage used but then there is absolutely no information about it on the net so 400volts is a guess.

as for buying scissors and electrical cord at the same time, I went into a store and bought these baby's
I learned more from the EEVBlog than I did in school
http://youtu.be/s-TK0zaakNk
 Amp Hour Theme Song Full Version http://youtu.be/buKg2eAX4Z0
 

Offline Kozmyk

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Re: Is it just me or is this totally unsafe?
« Reply #27 on: January 22, 2012, 12:16:02 pm »
as for buying scissors and electrical cord at the same time, I went into a store and bought these baby's
What are they used for? DIY spaghetti?
 

Offline Kozmyk

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Re: Is it just me or is this totally unsafe?
« Reply #28 on: January 22, 2012, 12:26:20 pm »
Let's ban guns and knives before we ban hobby electronics  ;)

they have here :)
And a pointless exercise that turned out to be.
Penalise all British legal sporting hand gun owners for the crimes of illegal gun users.
Effect on British gun crime? Negative. More problems since the ban than before it. ^.^
 

Offline PStevensonTopic starter

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Re: Is it just me or is this totally unsafe?
« Reply #29 on: January 22, 2012, 04:25:10 pm »
as for buying scissors and electrical cord at the same time, I went into a store and bought these baby's
What are they used for? DIY spaghetti?

shredding documents. I might try making spaghetti with them
I learned more from the EEVBlog than I did in school
http://youtu.be/s-TK0zaakNk
 Amp Hour Theme Song Full Version http://youtu.be/buKg2eAX4Z0
 


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