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Old 17th Sep 2008, 3:58 pm   #9
JHGibson
Retired Dormant Member
 
Join Date: Apr 2003
Location: Salt Spring Island, BC, Canada
Posts: 368
Default Re: HAC SW Single Valve

Be very careful to connect the batteries to the right wires. You will need a 2 volt accummulator for the filaments and a high tension battery for the HT+. 50 volts would be OK for the HT. There might be a requirement for a third battery to provide grid bias for the output valve. I hope your user manual clearly indicates which wires are which! and what batteries are required. Connecting the HT battery to the filaments would destroy the valves.
Polarity of the batteries is also important. If you reversed the wires to the HT battery, the radio would not work. Ditto the bias battery.
John.
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