Moog Music Voyager
On the left there is the power supply (3rd party board) and a little power supply board that might generated the additional voltages not available on the power supply:
- +15 V - only wired to the analog board
- +12 V with its own ground routed to the BNC lamp connector on the back
- +10 V
- +5 V labled +5A (= +5 V analog)
- +5 V labled +5D (= +5 V digital)
- Ground
- -5 V
- -10 V
- -15 V - only wired to the analog board
In the big horizontal board on the right is the analog board. And the board left of it (the one with those many blue caps) is the digital board.
Click [here] for a picture of the very same Voyager after the 3.x hardware upgrad
I spotted under the widest flat cable going from the digital board (bottom left) to the panel:
- Battery: size/type 3032 (3 Volt)
- AMD AM29F010B 1 Mbit, 5 Volt-only Flash Memory
- ZiLOG Z180 MPU "Higher performance version of Z80 MPU, with 1MB memory addressing"
There are more wires than inside a PPG wave 2.2 or 2.3 !
The big analog board (20 x 38 cm / 8 x 15 inches)
The left half of the analog board. This board does feature some labels like "Glide circuit" and "Oscillator section", ...
... but there is no label named "filter" or something like that.
The Moog filter transistors are constructed from the CA3086 transistor array. So the filter transistors are not descrete. If this is a bad or good thing depends on your personal view. See many long threads at certain web forums.
Anyway, the Moog Source also used one transistor array chips (a CA3046) as well for the needed matched pair of transistors on top and bottom of the famous Moog ladder filter. And we all know this didn't sound bad then nor today.