My Thomas Duplex hums...loudly.

jstraw · Oct 28, 2006

Do they all do this? Is it a symptom of a problem?

Gay Larson · Oct 28, 2006

mine doesn't hum, that all I have to compare.

mikebarger · Oct 28, 2006

Mine has a slight hum to it

blaze-on · Oct 29, 2006

Mine hummed...then light flickered. I was informed it is probably a bad bulb..I haven't replaced yet to confirm though.

dphphoto · Oct 29, 2006

I used to work in "pro" labs, and have been around any number of these things. They all hum, but some more than others. The one I have now hums, but not enough that I can't drown it out with the stereo. Dean

jstraw · Oct 29, 2006

Thanks, folks. I'm not going to sweat it.

Black Dog · Oct 31, 2006

Any particular tune? or is it all modern classical LOL?

Jeffrey A. Steinberg · Oct 31, 2006

a loud humm means the ballast in the starter is going. It can be replaced. A low level hum is just the voltage going through the tube.

--Jeffrey

Marcisaacs · Aug 19, 2022

Jeffrey A. Steinberg said:
a loud humm means the ballast in the starter is going. It can be replaced. A low level hum is just the voltage going through the tube.

--Jeffrey

Hi Jeffrey,
I am new to the group. Can you say a bit more about the ballast in the starter. I see what looks like an induction coil inside as it resembles a transformer but I know it’s stepping up the voltage for the bulb. I see a socket. I see the bulb which is now fully up to color, but where is the starter you speak of and where can things like the coil( ballast?) and starter be obtained. I believe Thomas closed out production long ago. Thanks for you input.
Sincerely
Marc

Melvin J Bramley · Aug 28, 2022

You hum it; I will sing it.

I 'disposed' of my Thomas paper fogger some months ago.
Now use two Paterson safe lights.

TB

My Thomas Duplex hums...loudly.

Privacy & Transparency

Privacy & Transparency