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Heater Wiring - the Good the Bad and the Ugly
Heater Wiring - the Good the Bad and the Ugly
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Old 13th September 2018, 12:30 PM   #141
Frederico Acardi is offline Frederico Acardi  Italy
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Thank you, The picture start to get clearer.
I was confused by the L of twisted wire vs straight parallel wires.
I tought that I was making the field stronger and wider.

But I have read a lot of cable papers and it start to make sense.

Thank you for your time.
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Old 8th October 2018, 03:41 PM   #142
Bigun is offline Bigun  Canada
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Heater Wiring - the Good the Bad and the Ugly
Originally Posted by DF96 View Post
Putting the wires in the corner of the chassis also reduces the electric field.
I assume this works best when the chassis is steel rather than aluminium ?
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
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Old 8th October 2018, 04:22 PM   #143
DF96 is offline DF96  England
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No. Any reasonable conductor will do for screening the electric field.
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Old 8th October 2018, 09:59 PM   #144
TonyTecson is offline TonyTecson  Philippines
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twisting wires works good....i have used plastic casings and did not have big issues...
if people react to you a certain way, it is not because of them but more because of you....
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Old 4th December 2018, 05:35 PM   #145
WntrMute2 is offline WntrMute2  United States
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Default Three Wires?

I'm wondering what to do about a heater circuit where one needs to run 3 wires? I'm modifying a 300B amp SET amp to allow both 300b's with their 5V heaters and the 300b's with 2.5V heaters (JJ2A3-40 for instance). The switch that will be used to select the voltage needs to have all three wires from the Hammond 166MS run to it - the two wires carrying the 5V and the one center tapped wire with 2.5V. The distance is 2.5 inches or so. Should all three be twisted together or is there a different suggestion? The wire off of the transformer is of poor quality when it comes to creating a tight twist as compared to teflon coated solid core stuff. The relationship between the parts before any modification is shown in the photo. I plan on the switch being located between the transformer and the hum-pot.
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