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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
Quote:
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 ?
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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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Heater Wiring - the Good the Bad and the Ugly
twisting wires works good....i have used plastic casings and did not have big issues...
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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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