Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

donate to eham
   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: HM-2140 9VDC battery eliminator (charger/converter)  (Read 667 times)
KC1BMD
Member

Posts: 959




Ignore
« on: July 20, 2018, 05:09:18 AM »

Heathkit sold a battery eliminator ("charger/converter") for the HM-2140 SWR/Power meter and some others to power the peak meter reading circuit in place of the battery. It is a "wall wart" type to convert AC line voltage to 9VDC. The parts I have seen referenced are: GRA-43-1 or PS-2350 converter/charger. It has a male ("mono" type) connector and the HM-2140 has a jack for the connection. Does anyone have one they do not need anymore and want to sell? Otherwise, does anyone know the size of the plug (e.g. 2.5mm - 3/32" sub-mini, 3.5mm - 1/8" mini)?
« Last Edit: July 20, 2018, 05:12:37 AM by KC1BMD » Logged
KQ4MM
Member

Posts: 76




Ignore
« Reply #1 on: July 20, 2018, 05:13:19 AM »

Waiting the answer as well, I have my 2140 in use as well... Would also like to know the polarity of the plug once we have the size information..

Brian - KQ4MM
Logged
KC1BMD
Member

Posts: 959




Ignore
« Reply #2 on: July 20, 2018, 05:17:51 AM »

The schematic shows it is (+) to tip and (-) to sleeve.
Logged
KC1BMD
Member

Posts: 959




Ignore
« Reply #3 on: July 20, 2018, 04:01:25 PM »

I managed to obtain both 2.5mm and 3.5mm mono phone plugs and confirmed that the HM-2140 jack (to eliminate the battery) is the 2.5mm (a.k.a. "subminiature" phone plug).
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!