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 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

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 Post subject: Power Brake / Attenuator
PostPosted: 19 Nov 2008, 13:11 
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Joined: 19 Nov 2008, 13:06
Posts: 2
I have 8 each 2ohm 50 watt resistors. Is there a way to connect them so that i can male a 4, 8 AND 16 ohm attenuator, perhaps with some sort of switching arrangement ?
I suppose im asking for a schematic. Any help is appreciated :confused:


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PostPosted: 19 Nov 2008, 17:25 
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Joined: 06 Jun 2008, 20:12
Posts: 972
Location: Houston, TX
Just stick them in a line, series, and put switches in between. Each time you turn on a switch it will add another resistor which will add another 2 ohms. So yes you can do that all the way to 16ohms in 2ohm steps. You will need a wire running from the switch end of each resistor to the back end of the last resistor so that when you close a switch you have a continuous line from the front of your first resistor to the back of the LAST SWITCHED resistor.
I wonder if that makes sense. Anyway, if you put them in parallel they will divide their ohms so you dont want to do that.
Let us know what you are actually trying to do. We may have better ideas/solutions.
Ri

_________________
DIY Lightspeed Passive Attenuator


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PostPosted: 19 Nov 2008, 20:38 
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Joined: 19 Nov 2008, 13:06
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Just trying to make a power attenuator for my guitar amp so i can plug amp output into "attenuator" and then have the "tone" of high volume at suitable listening level, like a powerbrake


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