Business Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
#624052 10/01/18 01:08 AM
Joined: Apr 2018
Posts: 150
Member
OP Offline
Member
Joined: Apr 2018
Posts: 150
Hi all,

I got my system up and running, will be posting photos soon... I notice on 2 phones that some of the lamps are dim and others are brighter. I was wondering, are they dim do to age or are their different lamps?


Also would any one have extra bulbs and about 2 to 4 24c flat fuses for sale?


Thanks Brian

Atcom VoIP Demo
VoIP Demo
morephones #624053 10/01/18 03:26 AM
Joined: Dec 2007
Posts: 6,749
Likes: 10
Retired Admin
*****
Offline
Retired Admin
*****
Joined: Dec 2007
Posts: 6,749
Likes: 10
51a lamps, 10 volt.
52a lamps, 24 volt.

Perhaps you have a combination?

I think Northern Electric might still make the fuses and Sylvania for the lamps.

Someone with better memory will probably correct me.


Dean
Photographs:
https://www.instagram.com/deanwilsoncanby/
https://fstoppers.com/profile/deanwilsoncanby
https://www.facebook.com/Dean-Wilson-Photography-112841337020414

Please don't confuse your "Internet Search" with my licenses, certifications and over 30 years experience.

"Thank you for calling Technical Support. If you feel you have reached this number in error, please hang up and press redial."
morephones #624096 10/02/18 06:57 AM
Joined: May 2007
Posts: 5,049
Likes: 3
Moderator-1A2, Cabling
*****
Offline
Moderator-1A2, Cabling
*****
Joined: May 2007
Posts: 5,049
Likes: 3
Depending on the type of set, you could have he L & LG leads reversed. What’s the configuration?

Sam


"Where are we going and why are we in this hand basket?"
Silversam #624133 10/03/18 02:34 AM
Joined: Apr 2018
Posts: 150
Member
OP Offline
Member
Joined: Apr 2018
Posts: 150
Thanks Sam and Dean,

I will check the L & LG leads. If I remember correctly from the booklet that I have each lamp does have a L & LG its own leads and not just one for the whole phone.

If it turns out that its the lamps being 10 volt lamps, would any one have the 52a lamps, 24 volt and about 2 to 4 24c flat fuses for sale?

Another question, when you swap out cards. Do you guys recommend to turn the system off? Thats what I been doing as I did not know if it was safe to change cards while the system is on. Then the other hand you have to worry about doing so many power cycles since the the components 40 + years old.

Thanks Brian

morephones #624145 10/03/18 03:54 PM
Joined: Dec 2007
Posts: 6,749
Likes: 10
Retired Admin
*****
Offline
Retired Admin
*****
Joined: Dec 2007
Posts: 6,749
Likes: 10
When I was servicing 1A2's for the Federal Government it was best NOT to turn the system off (in their opinion).

  • You can do Hot Swapping as long as you have extra fuses for the times you pop one.
  • If the system is just for your own fun and you are low of fuses...


Remember, it doesn't take all that long for a electro-mechanical system to reboot.


Dean
Photographs:
https://www.instagram.com/deanwilsoncanby/
https://fstoppers.com/profile/deanwilsoncanby
https://www.facebook.com/Dean-Wilson-Photography-112841337020414

Please don't confuse your "Internet Search" with my licenses, certifications and over 30 years experience.

"Thank you for calling Technical Support. If you feel you have reached this number in error, please hang up and press redial."
morephones #624218 10/05/18 11:39 AM
Joined: Jan 2017
Posts: 104
Member
Offline
Member
Joined: Jan 2017
Posts: 104
Hot swap or how it is called in professional IT equipment? When I look on WE 400-series line cards developed back in 1950s and on the modern computers - ai say all these PCI cards are not so far from WE 1A2 concept of modular plug&plag concept. So this is where it al started - in Bell Labs.
I also have some difference in brightness of lamps on some telephone sets. I accounted it first to the lamps, but after trying to replace some with brand new ones I saw no difference. So it is most probably a parasite resistance somewhere in contacts, screws or lamp sockets themselves. No solution for that so far.


Moderated by  ChrisRR, EV607797, Silversam 

Link Copied to Clipboard
Forum Statistics
Forums84
Topics93,820
Posts636,739
Members49,643
Most Online5,661
May 23rd, 2018
Popular Topics(Views)
Today's Birthdays
Airdale, AnnetteLee, AnnettesDayIsUg, bigboy, Blackline, boomj, db Communications, gwh, samcorcione9111, Victor D.
Newest Members
julesm, Helen.D, AlAl, mike hurford, Nigel S
49,642 Registered Users
Top Posters(30 Days)
pvj 12
ramo 11
Toner 9
dans 5
Who's Online Now
1 members (hbiss), 98 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Contact Us | Sponsored by Atcom: Business Phone Systems | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2023
Powered by UBB.threads™ PHP Forum Software 7.7.5