After nosing around the web for a couple days I've answered my own question...
The Turner
Sidekick 100 preceded the
Super Sidekick by a couple years but at one brief point both microphones were sold side-by-side
(until the SSK took over).
View attachment 34051
While I didn't crack open the heads, specs indicate they were using same/similar cartridges. Besides the different style labeling, the Sidekick 100 has a adjustable impedance transformer with an adjustable pot located on the bottom of the base.
View attachment 34046
I took a look inside and here's what I found -
Both of these particular models use
Motorola's 4008 chip
(previously talked about on another thread), but after that they veer away slightly from each other.
The
Sidekick 100 has an impedance matching transformer while this
Super Sidekick does not. Once wired to a radio the instructions said to turn up the topside gain control, adjust the bottom control for loudness, then re-adjust the top control to your liking.
View attachment 34050
The
Sidekick 100 has the
Motorola 4008, and a
2N4126 audio amp while the
Super Sidekick only has the
4008, and the capacitor values are different as well:
Sidekick 100 - 22, 15, and 47 mfd.
Super Sidekick - 5, 20, and 15 mfd.
I'm no circuit wizard, but ever since I got a Sidekick 100 I wondered what was different between the models, so maybe someone more technical who is reading this will chime in