[MRCA] BA-48 Rebuild Powering GRC-109

MilComm Guy m38inmaine at gmail.com
Thu Oct 23 13:37:19 EDT 2025


With all the needed items on hand today I rebuilt the BA-48 battery to
power the GRC-109 receiver and eventually the GRC-9 receiver, still looking
for a CD-1119 cable for the GRC-9.
  This is probably the simplest way to do it using minimum soldering and
purchased materials.  The 9V batteries simply snap together, no holders or
extra wiring, two D cells in parallel using a holder that snaps together
and some hot glue and cardboard.  I made an insert from cardboard to hold
the batteries, there is extra space so you can add an additional 9v pack to
double the capacity.  The size of the BA-48 is a perfect match to re-stuff
with commercial batteries.
Cardboard Insert
[image: DSCN0664.JPG]
Battery layout
[image: DSCN0666.JPG]
Batteries/insert installed
[image: DSCN0667.JPG]
Final product powering GRC-109 receiver
[image: DSCN0668.JPG]

73
Mark
K1HF
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20251023/ae7eeda3/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DSCN0664.JPG
Type: image/jpeg
Size: 293352 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20251023/ae7eeda3/attachment-0004.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DSCN0666.JPG
Type: image/jpeg
Size: 242510 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20251023/ae7eeda3/attachment-0005.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DSCN0667.JPG
Type: image/jpeg
Size: 302331 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20251023/ae7eeda3/attachment-0006.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DSCN0668.JPG
Type: image/jpeg
Size: 273704 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20251023/ae7eeda3/attachment-0007.jpe>


More information about the MRCA mailing list