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Hoffman Amps Forum image Author Topic: Switch  (Read 2105 times)

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Offline davidwpack

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Switch
« on: December 31, 2017, 10:07:59 am »
Anyone ever tried pushbutton switches such as these for on/off, standby? The specs seem like they'd be fine for guitar amps. They look kinda cool. Just wondering. http://www.adafruit.com/product/916

Offline Auke Jolman

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Re: Switch
« Reply #1 on: December 31, 2017, 11:02:48 am »
Hi David,

I never tried them. Looking at the technical specifications, I would be hesitant to use them for DC-switching. The are only rated at 250 V DC @ 3 A.
With Regards,

Auke

Offline davidwpack

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Re: Switch
« Reply #2 on: December 31, 2017, 11:13:29 am »
Yeah but unless I'm looking at the wrong data, the Carling switches I normally use are rated for 250 V @ 1A.

Offline Auke Jolman

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Re: Switch
« Reply #3 on: December 31, 2017, 11:41:18 am »
I see that too.

Maybe some real experts chime in.
With Regards,

Auke

Offline Colas LeGrippa

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Re: Switch
« Reply #4 on: December 31, 2017, 02:56:25 pm »

I never checked the data sheet before using a switch. I have plenty of switches in my drawers that I use for switching triode-pentode, standby, on/off
and so on, without looking at the specs......Perhaps i oughta do to do it. I guess a cheap switch won't tolerate 500V for a long period, bu at the same time, if the current is really low what harm could do such voltage to a switch ????


Colas Coca
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Offline Colas LeGrippa

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Re: Switch
« Reply #5 on: December 31, 2017, 03:09:19 pm »

250V seems a standard for switches. I think that if a switch is rated for 250V at 1 A , it could handle 1000V at 250 mA, 2000V at 125mA etc.
The power of all the above mentioned switches is 250W and I think this is how we gotta calculate it.
Don't miss the Woodstock experience : ''FORTY YEARS AFTER'' at Club Soda,  in Montreal, august the 17th and 18th and october the 27th. Fifteen musicians onstage.  AWESOME !
P.S.: call me Alvin.

Offline sluckey

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Re: Switch
« Reply #6 on: December 31, 2017, 04:17:19 pm »
Quote
I think that if a switch is rated for 250V at 1 A , it could handle 1000V at 250 mA, 2000V at 125mA etc.
No, no, no, no, no.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


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