EEVblog Electronics Community Forum

Products => Test Equipment => Topic started by: tpd on March 03, 2021, 08:26:52 pm

Title: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: tpd on March 03, 2021, 08:26:52 pm
Hello,

Can anybody say which type of connector is used with these power supplies, and to shad some light on their characteristics?
I need an external power supply for my Metrahit 18C calibrator.


Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: sssaaa on March 07, 2021, 03:17:05 am
2.5mm
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: tpd on March 07, 2021, 07:50:01 am
Thanks, it is connector for mono headphones, I guess.

Quote from: sssaaa on March 07, 2021, 03:17:05 am
2.5mm
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: tpd on March 07, 2021, 10:29:43 am
Can you say more about the length of it, here are jacks with 15-19 mm in length available:
https://www.aliexpress.com/item/4001126790333.html?spm (https://www.aliexpress.com/item/4001126790333.html?spm)
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: sssaaa on March 09, 2021, 03:05:59 am
12mm
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: sssaaa on March 09, 2021, 03:13:43 am
Quote from: sssaaa on March 09, 2021, 03:05:59 am
12mm
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: tpd on March 09, 2021, 08:46:59 am
Damn Metrawatt, I new it is not a standard length. I just have ordered 15 and 16 mm jacks from aliexpress, I couldn't find any shorter.
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: Wytnucls on March 09, 2021, 09:23:07 am
The newer ones are even worse, 3 pronged unobtainium.

(https://res.cloudinary.com/iwh/image/upload/q_auto,g_center/w_1024,h_768,c_lpad/assets/1/7/Z218H.jpg)
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: tpd on March 09, 2021, 09:31:41 am
Can you say will it be a problem if 5V standard USB power supply is used instead of NA's 4,2V?
Title: Re: Gossen Metrawatt external power supply NA4/500 & NA5/600
Post by: Wytnucls on March 09, 2021, 09:33:38 am
I can't say for sure. My 30M has a 5V/600mA  supply requirement.