Above link to a Jelco SA 370H NOS for sale on eBay.
This arm (370H) uses Rega mounting dimensions. Effective length: 239mm. Mounting distance 218mm. It is possible to align to Baerwald null points (66 and 120.89mm), or Loefgren B. The slotted headshells, which one must buy will allow some flexibility in this regard.
I have setup on a NOS 370H in one instance and refurbished a sumiko MMT tonearm (same as Jelco SA 370H)on another TD150. Both worked well.
With the NOS 370H the tonearm was like a new arm that had been sealed in its box for a few decades. Otherwise same as new. The older MMT arm came to me incomplete and in need of repair but this gave me the oportunity to disect it completely and during that process I came to appreciate its robust build qualities. It was built to last.
My one criticism of the 370H is the base collar support it comes with; as being too chincy. And the counterweight may not be heavy enough to balance some of the heavier moving coil cartridges one may choose these days.
The positives are that this arm is capable of delivering the sonic goods in spades at a low cost. I'd gladly take another when the oportunity arises.
For less than $400 usd this is quite a bargain, but you may wish to purchase another heavier counterweight as well as a better headshell -- adding to the cost.