[MRCA] [MMRCG] Your thoughts on acquiring a BC-611 today

[Robert Nickels]

On 5/25/2026 1:13 PM, J Mcvey via groups.io wrote:
> I think the power supply is the biggest problem with the BC611.

Easily addressed using modern DC-DC boost converter technology.  A 
"Nixie power supply" that sells on eBay for $10 will produce the current 
and voltage required by the BC-611 while operating from 6VDC and 
typically run 85% efficiency or better.   I made a 3D printed housing 
with a power switch which along with a standard battery holder for four 
AA cells fit into a simple U-shaped thin aluminum frame along with 3D 
printed endpieces that make contact with the radio battery contacts.  
Others have 3D printed the whole works but to use a standard battery 
holder the walls need to be kept thin in order for it to slide into the 
BC-611.

The antenna-actuated switch will still turn the filaments on/off as 
always but since the battery-substitute has internal batteries I just 
pop it out and turn it on when needed.   For the filaments you need just 
one D cell, and a 50 cartridge case (field expedient, per the manual).  
Or equivalent ;-)

73, Bob W9RAN

PS:   Many of these batteries were made by Burgess Battery Co. here in 
Freeeport IL and during the war, in satellite plants in eight towns in 
NW IL and SW WI.   This watercolor painting that is displayed in the 
Silver Creek Museum was done in 1943 and was found in the Freeport 
headquarters before the buildings were demolished. There's some damage 
but it refers to Burgess batteries as the "Powerheart for bazookas and 
walkie-talkies":


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