[Radiofanatic]

Thank you

[Kenradio]

Hi John, here's a picture of the socket connection to my ARBE III that I use to run mu 38-643B & 37-38B radios that I have in my collection. I couldn't find my 37-623 service data but located my 37-643 service data which also covers the 38-643 chassis and took a pic of the battery connector which shows the voltages. For the -3 volts I used the -4.5 volt connection on the ARBE III and it works fine.  Thanks,  Ken

[Radiofanatic]

Thanks again Ken !!

[Radiofanatic]

Hi all,
Can anyone tell me where the Battery leads go to each tube on this radio? The Schematic is not very clear.