Type 7 #3658b New Interior Lights (Test?)

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Type 7 #3658b New Interior Lights (Test?)

Postby Adams_Umass_Boston » Wed Jan 18, 2012 8:32 pm

Today I boarded a a three car D line trolly at Government Center on my way to work. I jumped on the lead car which was 3658. I boarded the A end, but I noticed the B end had completely new lights. They replaced all the lights, not just the bulbs on the B end, but not the A end. It was bright and nice. They even replaced the the little green light by the front door with a shiny metallic light. What was interesting was that they only did one end. So when you looked back, the A end was darker with the old yellow hued lights.

I looked up on NETranst but 3658 is not a married pair of two different halves. So are they testing out new lights for the future over haul? Anyone know?
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Re: type 7 #3658b new Interior Lights

Postby octr202 » Thu Jan 19, 2012 8:37 am

Did they appear to be LED lights?
Wondering if I'll see the Haverhill double-tracking finished before I retire...
Photo: Melbourne W7 No. 1019 on Route 78, Bridge & Church Streets, Richmond, Victoria. 10/21/2010
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Re: type 7 #3658b new Interior Lights

Postby Adams_Umass_Boston » Thu Jan 19, 2012 8:51 am

I was wondering the same thing. The shades hid the type of bulb that was in there. Do LEDs come in the long horizontal tube type? I think that was what was in there.
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Re: type 7 #3658b new Interior Lights

Postby octr202 » Thu Jan 19, 2012 12:13 pm

Appears that companies are making LED replacements for florescent tubes:

http://www.ledtronics.com/Products/Prod ... px?WP=2066

That's just one company that a quick search turned up.
Wondering if I'll see the Haverhill double-tracking finished before I retire...
Photo: Melbourne W7 No. 1019 on Route 78, Bridge & Church Streets, Richmond, Victoria. 10/21/2010
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Re: type 7 #3658b new Interior Lights

Postby Adams_Umass_Boston » Fri Jan 20, 2012 9:03 am

You are probably right. I am sure that's what they did.
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Re: type 7 #3658b new Interior Lights

Postby F-line to Dudley via Park » Fri Jan 20, 2012 9:51 am

Easy to mod those fixtures. They just remove the fluorescent-specific ballast and starter from the fixture so the electricity is a straight feed to the bulb pinouts, then put in the replacement bulb. Lasts 10 years, much less susceptible to vibrations, removes all hazardous mercury in the bulb and PCB's in the ballast. If the trial works I bet every single car on every single line--Green, Red, Blue, Orange, Purple, Yellow--gets them over the next few years. LED's totally pay back and then some the higher up-front costs with lower maintenance over the life of the fixture and easier disposal. Even bigger motivator than the electricity savings themselves, which are a negligible factor on vehicles.

On all newer buses they have the interior lights as LED-specific features, so these tubes are only for retrofits. Probably will see the new Orange 01400's, Red 01900's, and Type 9's come straight from the factory with those same native-LED fixtures the buses have.
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Re: type 7 #3658b new Interior Lights

Postby Adams_Umass_Boston » Fri Jan 20, 2012 11:36 am

Just to add, that the plastic covers were also replaced. Everything looked new.
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Re: type 7 #3658b new Interior Lights

Postby typesix » Fri Jan 20, 2012 12:47 pm

At the time the T7s were built, PCBs were not being used for new fluorescent ballasts.
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