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Both constructions use the same type of material, basically a thermoset FRP (fiberglass reinforced plastic), which includes specially formulated resins, flame retardants and UV stabilizers to produce the unique benefits which characterize fiberglass reflectors. Because some antenna installations must exist in environments containing tubesupplier many corrosive agents, the materials in the construction of the antenna must be carefully selected to alleviate corrosion problems. Obviously, in the case of an aluminum structure, dissimilar metal contact is always a risk factor. tubesupplier A fiberglass dish, on the other hand, all but eliminates this problem - for obvious reasons. The resins used in antennas have been subjected to both field and laboratory tests involving over 130 highly corrosive chemicals at temperatures up to at least 120° F (50° C), with results that indicated little or no detectable degradation of the test samples.

Our company carries the entire line of Mart products, including their world-famous lines of high-power remote RF coaxial switches (up to 11 position!), quad antennas (UHF through 80 METER BAND!), antenna parts (such as spider hubs), heavy duty gin poles, tower insulators (insulates ENTIRE TOWER from ground), rotating side mounts, custom "H" frames, and much, much more. We now present the entire Mart catalog on-line! The catalog and linked pages offer current pricing, as well as many drawings, illustrations, and photos. NOTE....many Mart products are now IN STOCK, AVAILABLE FOR IMMEDIATE SHIPMENT! No tubesupplier need to wait for custom fabrication for many product classes. (Inquire) If you have any of these types of items to sell, (vacuum variable capacitors, vacuum relays, "doorknob" capacitors, variable inductors, or transmitting tubes ), either new, or good used stock, please state description, condition, and price by email or post.

We are also interested in purchasing your non-working Racal RA-6790GM receivers to increase our parts inventories. Again, please state condition and price. Racal-- We have a good selection tubesupplier of checked boards, parts, and filters for the popular processor controlled, general coverage receiver at very reasonable prices. We have complete manuals for this receiver for only postpaid in USA. (Foreign orders pay shipping.) Clean, checked, complete units are available for (you ship) with three filters: 3.24 khz (upper and lower sideband); 6.8 khz (AM); and 16 khz. We also repair cost of the repair if you choose to tubesupplier have us proceed. You pay return shipping actual cost, no packing charge. Email us for authorization before shipping units for estimates.

the internets number one site for fiberglass rods

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