orthophonic
Super Member
After enlarging your moto image, I see that yours uses an
Astatic Soundflo 89T plug-in cartridge/stylus making your unit a later production run (1957 i think). These are very easy to find, but get an original green colored one, they are much better quality than the later brown ones.
if you want to go with a modern magnetic as i did, you can use
a Stanton 500AL or a pickering NP/AC. They will screw into
the original arm mounting holes and you strap the cartridge for mono output, left & right hot tied and left ground and right ground tied. These cartridges are a little heavier than the original so you will have to adjust the tonearm tracking weight by changing the position of the spring under the arm.
You would move it forward to one of the narrower slots.
Tracking should be adjusted to about three grams for the stanton and 3.5 to 4 grams for the Pickering. Of course
this assumes the turntable mechanicals have been cleaned of the old grease and relubed.
In using one of these magnetics you will need to add one of the small riaa phono preamps that are widely availabe. Plug the tonearm output cable into the preamp and then plug the output of the preamp into the amplifier input. This also assumes the amp has been rebuilt with new capcitors.
Another thing, because the tonearm is metal, you will have
to remove the small grounding strap that comes with these cartridges.
The Stanton 500AL has been recently renamed to something like V4 or V5 but it is the same. Just make sure it is the Spherical stylus model with a tracking range of two to five grams.
Astatic Soundflo 89T plug-in cartridge/stylus making your unit a later production run (1957 i think). These are very easy to find, but get an original green colored one, they are much better quality than the later brown ones.
if you want to go with a modern magnetic as i did, you can use
a Stanton 500AL or a pickering NP/AC. They will screw into
the original arm mounting holes and you strap the cartridge for mono output, left & right hot tied and left ground and right ground tied. These cartridges are a little heavier than the original so you will have to adjust the tonearm tracking weight by changing the position of the spring under the arm.
You would move it forward to one of the narrower slots.
Tracking should be adjusted to about three grams for the stanton and 3.5 to 4 grams for the Pickering. Of course
this assumes the turntable mechanicals have been cleaned of the old grease and relubed.
In using one of these magnetics you will need to add one of the small riaa phono preamps that are widely availabe. Plug the tonearm output cable into the preamp and then plug the output of the preamp into the amplifier input. This also assumes the amp has been rebuilt with new capcitors.
Another thing, because the tonearm is metal, you will have
to remove the small grounding strap that comes with these cartridges.
The Stanton 500AL has been recently renamed to something like V4 or V5 but it is the same. Just make sure it is the Spherical stylus model with a tracking range of two to five grams.
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