[MRCA] BC-659 Bias Battery
B. Smith
smithab11 at comcast.net
Sun Jul 5 12:10:56 EDT 2026
A fabricated battery pack consists of 3 boards is used.One board has 5
ea 12volt batteries (A23) in series for 60 volts. Another board has 2 ea
12 volt (A23)batteries in series with a 1.4 (AAA) batteryfor 25 1/2
volts and the 3rd board has 4 (AA) in series for 4.5 volts.4.5 volts
used for audio.60 and 25 volt used for frequency control on transmitter
and are necessary for the oscillator to lock on frequency. The single
AAA battery in series with the 2 ea A23 batteries may not really be
needed but I did it anyway on the first pack.
Battery holders for the A23 battery can be found on ePay or Amazon.Use a
glue gun to secure the holders on 1/8 inch plywood.
When the set is being stored just remove 1 battery from each of the
series packs.
Improvise-Adapt-Overcome
Z
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