Basically, any 10" broadband driver with 4-8 Ω impedance will do. As said before, true HiFi wasn't what SABA aimed at.
Best regards!
Best regards!
Speaker impedence is also important. Common tube radio drivers have 3 or 4 ohm impedence, this is still standard for car speakers, but home Hi-Fi speakers are mostly 6 to 8 ohms now. Car speakers may be less sensitive, so not always a good match for a tube amplifier. I once fitted a Visaton B200 as replacement for a quality vintage 8'' driver, but it is expensive and 6 ohms. I also had good results recovering the fullrange or mid-low driver from hi-fi home speakers from the '80. They are available at low cost on thrift stores and they were usually matched to low-power amplifiers, so they have high sensitivity.
The major issue I got when replacing a full-range vintage speaker from the '50-'60 is the depth and width of the basket. Most Hi-Fi drivers have a big magnet that does not fit the cabinet of older tube radios and record players.
The major issue I got when replacing a full-range vintage speaker from the '50-'60 is the depth and width of the basket. Most Hi-Fi drivers have a big magnet that does not fit the cabinet of older tube radios and record players.