[49Stude63]

Jon in some case Philco used magnetic cartridges and in other cases ceramic cartridges. Most of the ones that had the magnetic cartridges had a step up transformer to boost the signal output. You can find these on the 46-1209. 47-1230 etc. On my BOL changers they also have a step up transformer. I think most ceramic cartridges did not require the step up transformer so you should be able to bypass the step up transformer and connect directly to the radio chassis. Someone that could really answer this question would be a guy up in Canada named Syl. Here is a link from Chucks site, http://www.philcorepairbench.com/links.htm it is called Old Radioz .