Instruction manual

RV-1 • 12

combined with R28, and R31 form a voltage divider to split the supply

voltage so that the opamps can be used on a single supply such as a

battery. It is slightly less than one half of supply so that there is plenty

of room for distortion free sound in the opamps and the BBD.

[ ] 37. Install C13, a 10uF electrolytic capacitor. Pay close attention to the

orientation again.

[ ] 38. Install R30, a 10K pot. This pot will control the attenuation if you are to

configure your kit to have a speaker output.

[ ] 39. Install R16, a 100K pot. This pot will control the rate at which signals

are passed through the bucket brigade device, and how long the

signal is delayed. In some cases, R16 may be a panel mounting type

rather than a PC mount style as R30 above. If your R16 is panel

mounting, mount the pot using supplied hardware and simply use

short jumper wires to connect the pot leads to the proper PCB holes.

[ ] 40. Install R14, a 4.7K resistor (yellow-violet-red).

[ ] 41. Install S1, one of the two switches provided. Make sure it is flush to

the board for good appearance before soldering. This switch will

determine if you have the spatial effects, or just the reverb (stereo or

mono).

[ ] 42. Install S2, the other switch.

[ ] 43. Install the 9V battery power connector. make sure and solder the

leads according to the parts layout diagram, with the proper colors

being mounted in the right holes. Also mount the battery holder. Use a

wire lead bent through the mounting holes and soldered to the PC

board.

We have just completed another long stretch of parts placing, how about

another break! This one deserves a soda since we are more than halfway

done. We just completed the timer circuit and the delay circuit, and after this

break we will take on the lowpass filter and the audio amp, and then we will

be finished assembling.

[ ] 44. Install R5, a 47K resistor (yellow-violet-orange).

[ ] 45. Install C5, a .005uF ceramic capacitor (marked 5nF, .005, or 502).

[ ] 46. Install R6, a 39K resistor (orange-white-orange).