Vintage Synth Repair

I see that this thread is for the later, electronic,  Freeman String Synth.  Does anyone have any info on the early "Tape" unit?

--- In vintagesynthrepair@yahoogroups.com, "Samuel Adams" <SamuelAdams7@...> wrote:
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> A bit of '70s trivia here...
> 
> Wasn't the Freeman string synthesizer that was used in the older Lowrey organs, which they called their "String Symphonizer"?  Does anyone know what they used for their "Brass Symphonizer"?  If I remember correctly, these had a Really GOOD and Full Sound, especially with the large compliment of speakers that Lowrey put into their consoles.
>