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Random Noise

A sharing of miscellaneous hints which might prove helpful in an electronic music studio but are not directly concerned with the Synthesis equipment.


Many circuits used in a synthesizer are fairly critical and can be "Thrown off" by high impedance sources of leakage. Such circuits include Sample/Hold and Voltage Controlled Oscillators. The rosin flux which is deposited when soldering can bridge the circuit board paths and induce high impedance leakage between conductors. This will cause Sample/Hold circuits to drift and VCO's to be non-linear. To eliminate rosin build ups, acetone (a solvent available at most drug stores) can be wiped or brushed across the conductor side of the circuit board to dissolve the rosin and leave the circuit board free from high impedance leakage paths.

Mike Metz of Wichita, KS says that "P.C. Laquer Solvent" (used in etching-circuit boards) will also do the trick.

Be careful not to get acetone on any plastic parts, i. e.: keyboards, knobs etc. Acetone loves to eat plastic.


John Blacet of Santa Rosa, CA passes along a nifty trick he discovered while working with his Gnome.

"I discovered that an application of a silicone record spray cleaner (I used Radio Shack # 42-2500) after a lighter fluid cleaning of the control strip solved my noise problems. The noise had refused to be eradicated by the lighter fluid cleanings, and had persisted long after the indicated break-in period. In any case, wiping the strip with lighter fluid and wiping it off is followed by the silicone spray, allowing it to sit for a minute and wiping it off with a soft cloth.

This solves noise problems as well as making the strip slicker. I prefer this as it eases playing. I hope you have the opportunity to pass this on to other Gnome owners". "Thanks, John", ed.


Jay Machado of Cherry Hill, NJ says that he uses recipe cards to draw his patch charts on. The patch can be drawn on the blank side of the card, while control settings and special comments are listed on the ruled side. Index cards are available with plastic tabs for dividing the patches into sections such as: Percussion, string, horns, electronic-tonal, electronic-non-tonal, etc. The whole system can be stored in a small easily handled recipe card box.


If you are one of the country's typical performing musicians, you undoubtedly have plenty of cords to take care of: Audio cords used to connect instruments to foot pedals to amplifiers, speaker cords to hook amp heads to umpteen speaker cabinets, extension cords to get to AC power to your amp and on and on! If you tend to throw all of your cords in a box between jobs, you probably end up spending an hour untangling them before the next job. This tip is for you! Save the small cardboard tubes that toilet paper is wound on. As you are putting away each cord, fold it neatly until it is a small bundle about 6 to 8 inches long and slip it into a TP tube. Voila! No mare tangled cords.

Cover with fancy cloth or contact paper to "sturdy up" the tube and camouflage its identity. Everyone will wonder where you found the "Far Out" storage tubes!

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Polyphony - Copyright: Polyphony Publishing Company


Polyphony - Feb 1976

Donated & scanned by: Retro Synth Ads


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