See if this site will help.
http://grillecloth.com/sylvania/tubelist.php?comp=&Num=4&tube1=6AQ5&tube2=&tube3=39&tube4=&Submit=Submit
Terry F
:::::I have an old radio with 4 tubes 7S7 , 7B7 , 39 , 6AQ5.Anyone has the schematic circuit? Thank you
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:::::I tried Terry's search and it comes up "0" finds. Can you give more info? Make and model would be nice.
:::I can´t give make and model because it has not words and numbers.I guess it was used as the receptor of a communications equipment because it has a fine tuning and the owner was a ham.Help me!!!!!
:How can I send tou a picture?Give me your mail.Thank you