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  #1  
Old 12-24-2015, 08:32 AM
iong iong is offline
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Zenith tv channel indicator

What's the correct bulb to correctly display the projected number on the knob face. I once heard it needs magnified tip.I have a '64 Zenith 26mc20
Thank you,
Perry
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Old 12-24-2015, 03:22 PM
Gunslinger Gunslinger is offline
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what is the voltage?
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  #3  
Old 12-24-2015, 03:34 PM
iong iong is offline
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Zenith projected channel knob indicator lamp

6.3v
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Old 12-24-2015, 04:13 PM
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I think they are standard bulbs....There is a separate metal light directing metal shield that goes over them that you need to have...
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Old 12-24-2015, 06:10 PM
old_coot88 old_coot88 is offline
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You can use a #47 or #44, but the projected image will be smeared/blurry.
The required bulb has the filament configured to provide a point source of light.
It has a designation number consisting of four digits, something like 1829 (that's not the number, but something similar) and danged if I can remember it. Somebody on here surely remembers it.

Last edited by old_coot88; 12-24-2015 at 09:02 PM.
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  #6  
Old 12-26-2015, 08:00 AM
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Quote:
Originally Posted by old_coot88 View Post
The required bulb has the filament configured to provide a point source of light.
Yes- the correct miniature lamp you need is a #239. This is the right bulb for ALL Zenith channel window applications. Buying NOS from ebay is about your only source to find them now.
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Last edited by drh4683; 12-26-2015 at 09:22 AM.
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Old 12-26-2015, 09:16 AM
dieseljeep dieseljeep is offline
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Originally Posted by drh4683 View Post
Yes- the correct miniature lamp you need is a #39. This is the right bulb for ALL Zenith channel window applications. Buying NOS from ebay is about your only source to find them now.
The numbers, I remember are #239 and #240.
The 1956 model B/W sets, used a PR12 flashlite bulb.
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Old 12-26-2015, 09:23 AM
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Dieseljeep is exactly right. I meant to say "239" instead of "39" and corrected it. Either 239 or 240 are the correct bulbs!
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Old 12-26-2015, 09:40 AM
dieseljeep dieseljeep is offline
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Originally Posted by drh4683 View Post
Dieseljeep is exactly right. I meant to say "239" instead of "39" and corrected it. Either 239 or 240 are the correct bulbs!
Replacing indicator lamps in all sets, was always a big PITA. Seems like every set used a different lamp, ever different years of the same make.
If you didn't have the proper lamp, many times, it meant a return call or a trip to the supply house.
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Old 12-26-2015, 10:35 AM
old_coot88 old_coot88 is offline
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239. Ya that sounds right. So it was a 3-digit number, not 4 digits. Senior moment.
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Old 12-26-2015, 11:34 AM
dieseljeep dieseljeep is offline
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239. Ya that sounds right. So it was a 3-digit number, not 4 digits. Senior moment.
They were changing some of the numbers, such as 1847 vs 47. They claimed the 1847 was a longer life lamp. That's all I bought, towards the end.
How about, the real tiny, two pin lamps that RCA used in some of the XL100's.
It was nice when the customer would tell you up front, that the channel indicator was out, so you would come prepared.
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Old 12-26-2015, 01:25 PM
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Quote:
Originally Posted by drh4683 View Post
Yes- the correct miniature lamp you need is a #239. This is the right bulb for ALL Zenith channel window applications. Buying NOS from ebay is about your only source to find them now.
A google search shows several sources. Here's one: http://www.bulbtown.com/239_MINIATUR...BASE_p/239.htm

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  #13  
Old 12-26-2015, 01:56 PM
iong iong is offline
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drh is right. Get NOS from ebay. Got a few #239's from bulbtown and although the filament is angled. It displays the channel number same as #47 bulb
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Old 12-27-2015, 07:22 AM
Gunslinger Gunslinger is offline
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I will check today and see if I have some left.
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Old 12-27-2015, 09:16 AM
Gunslinger Gunslinger is offline
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I do not have 239 lamps. I have 51,53, 130, 1847, 159,259,the Zenith neon with long black wire leads. I seem to remember Zenith used the 130 lamps on a lot of sets.
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