Tonearm support bracket variants on orthophonic Victrolas

[ymg200]

I'm looking for a replacement tonearm support bracket for 1-90 and I need to know what machines had compatible brackets.
I see that orthophonics had brackets with the pivot screw on top and without. 1-90 has the one with the screw on top. Were there different variations of this bracket?
I might be able to get a bracket from VV 4-4. Was it the same bracket as on 1-90?
Thank you.

[AmberolaAndy]

I’m still looking for a back bracket for a VV-2-60 portable machine! I hope you have better luck finding your bracket than I have been finding for that portable!

[MarkELynch]

The tonearm bracket for your 1-90 is part number 17641AE and is the most common type of Orthophonic bracket, you will have no trouble finding a replacement from our various parts suppliers.

It was used on these models and their electric counterparts:
4-4, 4-7, 4-40, 7-30, 8-4, 8-7, 8-30, 8-60, 9-15, 9-40, 12-25 and 1-90.

On the other hand the 2-60 uses part number 19337AE and is unique to the 2-60.

BTW, the part number does not appear on the part itself so that may make identification difficult. Use the part dimensions or the source machine to determine the fit.

Mark

[ymg200]

Mark, thank you very much for this info. That is a very deep knowledge, I couldn't find tonearm or support bracket variants even in Victor Data Book. Just out of curiosity, how do you know these part numbers?