Here's all the 32-bit UB audio plugins from TAL that I was able to
track down. While some of the legacy TAL plugins available from the
current site require Leopard, unless otherwise stated all of these run
in Tiger PPC. The screencaps were taken in Tiger PPC running in QEMU.

It seems Tiger PPC compatibility lasted longer with the Audio Units.
The VST format of some plugins need Leopard while the corresponding AU
will still run on Tiger. For these earlier versions will need to be
found.

Newer versions of many of these are still available from the TAL site
in the purchase link.

Instruments

DL #1: TAL-BassLine 1.5.5 (AU)
DL #2: TAL-BassLine 1.5.5 (VST)
DL #3: TAL-Elek7ro 1.20 (AU)
DL #4: TAL-Elek7ro 1.20 (VST)
DL #5: TAL-Elek7ro-II 2.70 (AU)
DL #6: TAL-Elek7ro-II 2.70 (VST)
DL #7: TAL-NoiseMaker 3.06 (AU)
DL #8: TAL-NoiseMaker 2.57 (VST) (PPC requires Leopard)
DL #9: TAL-U-No-60 1.1.0 (VST)
DL #10: TAL-U-No-62 1.80 (AU)
DL #11: TAL-U-No-62 1.7 (VST)
DL #12: TAL-Vintager 1.0.2 (VST)

Effects

DL #13: TAL-Bitcrusher 1.0 (AU)
DL #14: TAL-Bitcrusher 1.0 (VST)
DL #15: TAL-Chorus-60 1.4.0 (AU)
DL #16: TAL-Chorus-60 1.4.0 (VST)
DL #17: TAL-Dub 1.1.0 (AU)
DL #18: TAL-Dub 1.1.0 (VST)
DL #19: TAL-Dub-II 1.60 (AU)
DL #20: TAL-Dub-II 1.60 (VST)
DL #21: TAL-Dub-III 0.95b (AU)
DL #22: TAL-Dub-III 0.95b (VST) (PPC requires Leopard)
DL #23: TAL-Filter 1.5.1 (AU)
DL #24: TAL-Filter 1.5.1 (VST) (PPC requires Leopard)
DL #25: TAL-Filter-II 1.10 (AU)
DL #26: TAL-Filter-II 1.10 (VST) (PPC requires Leopard)
DL #27: TAL-Flanger 1.0.1 (AU)
DL #28: TAL-Flanger 1.0.1 (VST)
DL #29: TAL-Phaser 1.0.1 (AU)
DL #30: TAL-Phaser 1.0.1 (VST)
DL #31: TAL-Reverb 1.11 (AU)
DL #32: TAL-Reverb 1.11 (VST) (PPC requires Leopard)
DL #33: TAL-Reverb-II 1.61 (AU)
DL #34: TAL-Reverb-II 1.61 (VST) (PPC requires Leopard)
DL #35: TAL-Reverb-III 0.96 (AU)
DL #36: TAL-Reverb-III 0.96 (VST)
DL #37: TAL-Tube 1.0.1 (AU)
DL #38: TAL-Tube 1.0.1 (VST)
DL #39: TAL-USE (AU)
DL #40: TAL-USE (VST)
DL #41: TAL-Vocoder 1.20 (AU)
DL #42: TAL-Vocoder 1.10 (VST)

Compatibility
Architecture: PPC x86 (Intel:Mac)

Mac OS X 10.4+
32-bit compatible plugin host