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 Post subject: Philo 39-45 light bulb?
PostPosted: May Mon 16, 2022 5:51 pm 
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Joined: Aug Sat 19, 2006 9:40 pm
Posts: 131
Location: Fremont, California
Philo 39-45

This is the only light bulb connected to my Philo 39-45, but I have been unable to remove it.
Push and turn didn't work, tried screwing it out, that didn't work.
It's in real tight and I don't want to break it.
Any ideas how to remove it??


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 Post subject: Re: Philo 39-45 light bulb?
PostPosted: May Mon 16, 2022 6:04 pm 
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Joined: Jun Wed 14, 2006 11:49 pm
Posts: 7550
Location: Leo, IN or Zellwood, FL
rbotti wrote:
Philo 39-45

This is the only light bulb connected to my Philo 39-45, but I have been unable to remove it.
Push and turn didn't work, tried screwing it out, that didn't work.
It's in real tight and I don't want to break it.
Any ideas how to remove it??


Most likely the bulb is burned out. Philco used some sort of plastic and over the years the stuff is into the spring
so usually you currently have zero spring tension on the bulb and it is difficult for sure to push and twist the dead
bulb to get it out.
As to repair of the Philco Lamp Sockets. See it all here with pictures.
https://philcoradio.com/library/index.php/shop-talk/techniques/rebuilding-philco-pilot-lamps/

Years ago I found a shouldered Nylon washer that was even better than the one used in the above illustration.
I think they were something like $10.00 per thousand washers. But click that link and fix the philco bulb sockets.
New wire is best as well.

EDIT: Found the link to the nylon shouldered washers.
https://www.grainger.com/product/GRAINGER-APPROVED-0-04-in-Nylon-6-6-Shoulder-4DCD2?opr=PDPDAM
you get a package of 40 nylon shouldered nylon washers for $5.61 plus postage from Grainger


John k9uwa

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 Post subject: Re: Philo 39-45 light bulb?
PostPosted: May Tue 17, 2022 1:19 am 
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Joined: Aug Sat 19, 2006 9:40 pm
Posts: 131
Location: Fremont, California
Thank you for your help John, I was able to remove the bulb with out breaking it and get a good look inside the holder.
I don't see any numbers on the bulb, it appears similar to a #51, but I will have to test later.

Rick


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 Post subject: Re: Philo 39-45 light bulb?
PostPosted: May Tue 17, 2022 1:45 am 
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Joined: Jan Tue 31, 2012 1:55 am
Posts: 20533
Location: Mountains of Mourne. Ireland.
Service manual...
https://philcoradio.com/library/downloa ... 20Book.pdf

Push button tuning, setting and operating...
https://philcoradio.com/library/downloa ... 20Book.pdf

Service bulletin...
http://philcoradio.com/library/download ... %20306.pdf

The three dial-lamps, one with a resistor all have the part number 34-2210
Specifications for 34-2210 can be seen here…
https://web.archive.org/web/20170422231 ... /lamps.htm


As I'm sure that you already know Rick, you can frost lamps with 220-grit silicon carbide sandpaper.
Greg.


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 Post subject: Re: Philo 39-45 light bulb?
PostPosted: May Wed 18, 2022 3:57 am 
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Joined: Aug Sat 19, 2006 9:40 pm
Posts: 131
Location: Fremont, California
Greg,
Thanks for all that information, I just might learn something :)

Rick


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 Post subject: Re: Philo 39-45 light bulb?
PostPosted: May Wed 18, 2022 8:23 pm 
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Joined: Jun Wed 14, 2006 11:49 pm
Posts: 7550
Location: Leo, IN or Zellwood, FL
rbotti wrote:
Thank you for your help John, I was able to remove the bulb with out breaking it and get a good look inside the holder.
I don't see any numbers on the bulb, it appears similar to a #51, but I will have to test later.

Rick


Bulb is either a #47 or a #44 the only difference between them the #44 is brighter as it consumes 1/4 amp = 250 mA of current where the #47 only consumes 150mA and is therefore not as bright. A #51 is a small totally round glass ball on the end of the bayonet base. Or another option today. https://www.pinballbulbs.com/clear44 LED replacements for the #44 and #47 bulbs. As to the "Colors" of the bulbs. Warm White is very close to a normal incandescent bulb. Where the cool white has almost a blueish white light. Advantages to the LED bulbs. They last a lot longer plus they draw about 1/3rd of the amount of current of the normal bulbs. All of the above numbers are 6.3v bulbs.

John k9uwa

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