03-11-2008, 09:35 AM
Has anyone on the phorum ever taken one of these apart,or is a schematic of
the battery pack available?Am rebuilding a 38-38,and am using a AC pwr supply;would like to keep the 2 volt tubes,however the biasing of the audio stages has me in a puzzlement.The -9 vdc for the 1H4G driver tube is returned to gnd via a 900 ohm resistor in series with a 1 meg /100k resistor to the grid of the 1H4G-the -9vdc is applied to the junction of the 900 and 1 meg resistors.Now is this battery pack one continous battery that is tapped or are there separate "B" and "C" sections?
Tnx es 73 de Bill W4NJF
the battery pack available?Am rebuilding a 38-38,and am using a AC pwr supply;would like to keep the 2 volt tubes,however the biasing of the audio stages has me in a puzzlement.The -9 vdc for the 1H4G driver tube is returned to gnd via a 900 ohm resistor in series with a 1 meg /100k resistor to the grid of the 1H4G-the -9vdc is applied to the junction of the 900 and 1 meg resistors.Now is this battery pack one continous battery that is tapped or are there separate "B" and "C" sections?
Tnx es 73 de Bill W4NJF
