Hello. I have a small "touch lamp" - you touch it anywhere, it turns on,
off, or dim. I know that it emits some minor RFI which can effect nearby
radios.

The table is small, so the touchlamp is right next to one of my mini-
system speakers. (speaker = 100watts max, "medium" size). The lamp metal
is about 4 inches from the main speaker cone magnet.

Is this safe? Can this damage the speaker, or wreak havoc with the
speaker magnet? Can it effect the speaker when it's "on"? Or will a
touch-lamp's circuitry have no effect on a speaker?

Thank you for any advice...

-Make

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im not sure but to take a good guess i would say not, a speaker isnt really
prone to be effected by interference of any kind, and the touch lamp
shouldnt be effected by the magnetic feild either

AshTray700 wrote:
: im not sure but to take a good guess i would say not, a speaker isnt really
: prone to be effected by interference of any kind, and the touch lamp
: shouldnt be effected by the magnetic feild either

Agreed. Touch lamps are typically an oscillar that reacts to body capacitance.
They would have no effect on a speaker.

b.

AshTray700 wrote:
im not sure but to take a good guess i would say not, a speaker isnt
really
prone to be effected by interference of any kind, and the touch lamp
shouldnt be effected by the magnetic feild either

The magnetic field from the speakers will have no discernible effect on
the capacitive pickup from your hand when you touch the lamp to change
its status. If the magnet could be demagnetized by the lamp circuit,
it could also be demagnetized by almost anything around your house.
Speaker magnets are very strong and can only be demagnetized by
striking them a severe blow or something even stronger that would wreck
then entire speaker. The RFI caused by the lamop citcuit is because
any setting except for full off or full on achieves the variable
brightness by chopping the AC waveform, thus introducting many
harmonics of the 60 HZ power line (assuming you are in the USA or
Canada).

H. R. (Bob) Hofmann