[GreenKeys] Model 28 Light bulbs - LED replacements?
John, W9DDD
w9ddd at tapr.org
Thu Mar 23 20:01:54 EDT 2023
eBay doesn't seem to have anything reasonable.
https://www.canadalite.com/82-Miniature-Indicator-lamp-G6-Bulbs-BA15d-Base
Seems more reasonable for the 6 volt lamp. About $8 for a box of 10
(minimum purchase) + shipping.
On 3/23/2023 6:39 PM, John, W9DDD wrote:
>
> Be careful about the 60 volt, that's mostly used for the margin or EOL
> indicator. But, there might be some 28s out there with the two 60
> volt in series for the copy lights. It would likely be a rare bird
> though I would think. Then there were the ones with fluorescent lamps
> and the 48 volt (for central office operation along with a 48 volt
> motor) versions as well.
>
> But, for most 28KSRs it's #82 for copy lights with either a 6 volt
> transformer with a dropping resister (10 or 100 ohm?) or a 5.5 volt
> transformer. And the EOL lamp is the 60 volt lamp with a 700 ohm
> resistor in series for 120 VAC supply. I don't think I've ever
> discovered the OEM number for it. I find it interesting that the ASR
> has a 6 volt EOL lamp operated from the 6 volt supply, but never
> evolved into that configuration for the KSR.
>
> I've bought a box of each on eBay. I didn't think the prices were
> that bad.
>
> As for LEDs, I could never find ones for 6 volts, 12 or 28 maybe. I
> wonder what a 12 would do with only 5.5 volts as a source? Also they
> weren't cheap.
>
>
> ---
> ----
> You said "tomorrow" yesterday.
>
> The above comments or recommendations are SWAG. Use at your own risk.
> John, W9DDD
> On 3/23/2023 5:31 PM, Jeff G wrote:
>> A number I got off the ones on the ship were GE #82, 6v bulbs. I find
>> it odd that they have dual contacts on the bottom while the originals
>> were just single filament bulbs (I think). The ones you linked show 2
>> filaments, which could be similar to a 1154 (6v dual filament like
>> for a taillight).
>>
>> I see some on Ebay but they want $11 shipping for a pack of bulbs.
>> Part of why I'm asking, is because it would be really cool to light
>> up some of the other machines in the room, even if they aren't in
>> use. (There's a couple waterfalls in there too, that I'm assuming
>> likely use the same bulb). I thought I did good finding a bunch of
>> bulbs in the parts units, only to find they were ALL burnt out LOL.
>>
>> Jeff
>>
>> On Thu, Mar 23, 2023 at 6:25 PM tony j. podrasky
>> <tony.podrasky at gmail.com <mailto:tony.podrasky at gmail.com>> wrote:
>>
>> GA OMs;
>>
>> Well - the life of these bulbs are pretty good.
>>
>> But if someone can get a good quantity deal on them, at a
>> reasonable price I'd be interested in taking 2-4.
>>
>> 73,
>>
>> K2EAA - tony
>>
>> NNNN ZCZC
>>
>>
>> THIS is what I found during a search for the bulbs:
>>
>>
>> <https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwj9npCki_P9AhUgHjQIHfNaBZEQFnoECBEQAQ&url=https%3A%2F%2Fwww.ebid.net%2Fus%2Ffor-sale%2Fteletype-corp-pn-153400-light-bulb-6-watt-60-volt-dual-contact-bayonet-base-nos-194952753.htm&usg=AOvVaw2O0rPLcvivu2i62WJeSRMw>
>>
>>
>> Teletype Corp PN 153400 Light Bulb 6 Watt 60 Volt Dual ...
>> <https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwj9npCki_P9AhUgHjQIHfNaBZEQFnoECBEQAQ&url=https%3A%2F%2Fwww.ebid.net%2Fus%2Ffor-sale%2Fteletype-corp-pn-153400-light-bulb-6-watt-60-volt-dual-contact-bayonet-base-nos-194952753.htm&usg=AOvVaw2O0rPLcvivu2i62WJeSRMw>
>>
>> eBid
>> https://www.ebid.net› for-sale › teletype-corp-pn-153...
>> <https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwj9npCki_P9AhUgHjQIHfNaBZEQFnoECBEQAQ&url=https%3A%2F%2Fwww.ebid.net%2Fus%2Ffor-sale%2Fteletype-corp-pn-153400-light-bulb-6-watt-60-volt-dual-contact-bayonet-base-nos-194952753.htm&usg=AOvVaw2O0rPLcvivu2i62WJeSRMw>
>>
>> bulbs for teletype machine from www.ebid.net
>> <https://www.ebid.net/us/for-sale/teletype-corp-pn-153400-light-bulb-6-watt-60-volt-dual-contact-bayonet-base-nos-194952753.htm>
>> /Teletype/ Corp PN 153400 Light /Bulb/ 6 Watt 60 Volt Dual
>> contact Bayonet Base NOS ; Condition · Unused ; Brand ·
>> /TELETYPE/ ; Quantity · 2 items ; Views · 2728 ; Location ...
>> CA$10.00 · 3-day returns
>>
>> ---------------------------------------------------------------
>>
>> On 03/23/2023 3:14 PM, Jeff G wrote:
>>> Does anyone know of a replacement for Model 28 document bulbs,
>>> preferably warm white (simliar to original) but LED? I know I
>>> can search for the bulbs (and see a few) but I figured I'd ask
>>> here if anyone has tried any yet? These seem pricey!
>>>
>>> Jeff KC3GJX
>>>
>>>
>>>
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>>>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:https://teletype.net/gksearch
>>>>>> 2002-to-present greenkeys archive:http://mailman.qth.net/pipermail/greenkeys/
>>>>>> 1998-to-2001 greenkeys archive:http://mailman.qth.net/archive/greenkeys/greenkeys.html
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>>
>> --
>> There is nothing that warms the heart so, as
>> gazing at your dog, who is sleeping on the
>> couch, mentioning his name, and hearing
>> thud-thud-thud as his tail hits the cushions.
>> - Tony J. Podrasky
>>
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>>
>> >>> Jordan Spencer Cunningham's GreenKeys Search Tool:
>> https://teletype.net/gksearch
>> >>> 2002-to-present greenkeys archive:
>> http://mailman.qth.net/pipermail/greenkeys/
>> >>> 1998-to-2001 greenkeys archive:
>> http://mailman.qth.net/archive/greenkeys/greenkeys.html
>> >>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:
>> http://comcents.com/tty/greenkeyssearch.html
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
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>>
>>
>>
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>>
>>>>> Jordan Spencer Cunningham's GreenKeys Search Tool:https://teletype.net/gksearch
>>>>> 2002-to-present greenkeys archive:http://mailman.qth.net/pipermail/greenkeys/
>>>>> 1998-to-2001 greenkeys archive:http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool:http://comcents.com/tty/greenkeyssearch.html
>> This list hosted by:http://www.qsl.net
>> Please help support this email list:http://www.qsl.net/donate.html
>> Message delivered tow9ddd at tapr.org
>
>
>
> ______________________________________________________________
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>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to w9ddd at tapr.org
--
---
----
The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD
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