GENRAD TOUCH DRIVER

If it is not, the lever is centered and a fine needle is used to very slightly bend the hair-spring where it attaches to the zero-lever in the appropriate direction to achieve a zero reading. Excess metal is carefully filed or sanded flush to the metal surface providing an invisible and permanent repair when painted. Seller information davidriddle This process takes much longer to reveal all of the nomenclature and requires careful attention not to cut through the fill paint no sanding block, only your finger! This is the first thing that’s typed on that keyboard after upgrade.

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The meter is raised from the horizontal to an upright vertical position with the scale facing front and fenrad scale nomenclature positioned horizontally left to right. When the finish is not even or is not textured enough, the plate can be re-heated and re-sprayed for the desired textural effect. Because of my experience and the quality of work, I can offer a lifetime warranty on every American-made General Radio, Superior Electric and Staco brand variac that I sell!

But if you’re a short throw guy I guess they already are. Add to watch list Remove from watch list. If the nameplate is large and the damage includes large areas of missing ink or paint, all of the nomenclature letters, numbers graphic entities, etc. Read item description or contact seller for details.

DAVID RIDDLE’S VARIAC RESTORATION PROCESS DETAILS © 11-4-16

The paint used for this application is a “thinned” white, gloss enamel, obtained from a can of spray paint dispensed into a cup. Learn More – opens in a new window or tab.

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All sheet metal holes that originally accepted sheet-metal screws are drilled to a specific diameter to accept “pressed-in, pre-installed nuts” for machine screw fasteners. After the previous steps have been completed and the meter mechanism, scale and shield cup are all in place, the calibration process can begin.

The electrical calibration of analog iron-vane AC meters requires a precision calibrated source of volts and amps accurate to at least 0. There are 1 items available. Any trademarks, tradenames or copyrights remain solely the property of the manufacturer. Depending on the meter cover configuration, masking of the painted areas genradd the cover may be needed to prevent damage during this process.

An abrasive “scotch wheel” on a rotating arbor is used to evenly “grain” the aluminum handle along it’s length on all surfaces.

If it is not, the lever is centered and a fine needle is used to very slightly bend the hair-spring where it attaches to the zero-lever in the appropriate direction to achieve a zero reading. Nice thing is anyone can swap out the foam for whatever they want though with just a handful of screws and peeling off the 11mm acrylic mounting discs. And so I wound up with a whole lot of new boards crammed into an already packed case.

The first step is “balancing the tree” the moving meter components: Select a valid country. A lacquer thinner soaked rag is used all along the cord length and plug surfaces to remove any hand oils or sticker tape residue.

Didn’t have to do that with the CommonSense though, so that was nice. Calculate Varies based on location and shipping method. The variac knob is rotated fully counter-clockwise and the test variac’s output is connected to a precision “instrumented” load that is configured to provide a zero to full load to the test variac. Very touchh and fine superficial scratches can generally be removed by hand gentad a commercially available, mildly abrasive, plastic polish and a clean soft cotton cloth.

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Seller information davidriddle All hardware and fasteners variac assembly, screws, nuts, switch, power cord, wiring, receptacle, handle, knob, meters, dial plate, nameplate, etc. Mapping out the matrix itself was a mess as well.

General Radio / GenRad LM2 (vintage tall keytronic) • deskthority

Wed Aug 01, Now we know that genrac bleaching. To eliminate this problem, a textured, clear lacquer finish provides the answer but typically available matte finishes are not sufficiently textured to hide even minor surface defects.

While using a soft flannel polishing wheel, rotating at the proper speed and with the appropriate “polishing-compounds” for styrene thermo-plastics, I carefully polish the meter cover window to a crystal-clear, transparent appearance, free of directional polishing marks.

The final step in the knob restoration is to “re-fill” the molded in “cursor” or “pointer” markings with paint. Depending on the meter cover configuration, masking of the painted areas of the cover may be needed to prevent damage during this process.