On 1/3/04, Paul Schreiber put forth:
>Just some very quick photos of the insides of the rare Moog String Filter.
>Quick observations:
>
>a) there are 9 filter cards with 4 filters per card. Each filter has 2
>trims.
36 filters?? I love analogue as much as the next guy, but imho, that
sounds like a job for DSP.
>b) the filter is based on the LM3900 (ack!)
Isn't that what Serge uses in their filters??
>c) The whole thing runs off of +12, no sign of any -12V anywhere.
That makes sense, considering the LM3900 was designed to operate single-sided.
>d) for some reason, the leads are NOT TRIMMED on the bottom of the pc boards
>(ack!)
>e) no shortage of LockTite at the Moog plant
>
>more to come, this was a 10min breaktime deal.
>
>www.synthtech.com/pix/string_filter
Ack!! In comparison, the MOTM pcb's look like Faberge Eggs.