Max-Gain Systems now has a secure online store!

 


 

About Our Company

Max-Gain Systems, Inc. carries a complete line of fiberglass , including fiberglass round tube, square tube, and solid rod. Most of our product line is designed to “sleeve” inside adjacent sizes, allowing almost any custom length and wall thickness, while at the same time retaining the ability to be shipped via USPS or FedEx!

We are quite unique in that we sell our wide product line in small (even single piece!) retail quantities, which allows individuals and hobbyists, as well as industry prototyping research personnel to economically try multiple possibilities before buying larger quantities.

Max-Gain Systems, Inc. is a leading supplier of vacuum capacitors (both vacuum variable capacitors and fixed vacuum capacitors), in factory new condition (we are an authorized distributor of quality Comet vacuum capacitors), unused surplus, and used / checked / guaranteed condition, all at GREAT savings!

We stock a wide line of vacuum relays by Jennings, Kilovac, and other top manufacturers, in new or used / checked condition, all at lowest prices.

We are a full line factory distributor of top quality products by the Bristol Wrench Company , including the entire line of Bristol spline wrenches. We sell in single piece quantity or in any volume!

We are full line suppliers of high quality RF connectors and RF adapters , both retail and wholesale. (Dealers… ask about wholesale pricing!) We stock many types that are almost impossible to find elsewhere.

We sell an ever-widening line of hard to find RF related parts …. and, WE SHIP ALL OF OUR PRODUCT LINES WORLDWIDE ! Let our shipping specialists suggest shipping options for your purchases.

Max-Gain Systems, Inc. is a wholesale supplier of fiberglass tube and rod to many of the best-known names in antenna manufacturing, both in the ham radio and military markets. We supply more fiberglass to more antenna manufacturers than any company in the world. We also supply fiberglass to many other industries and uses, such as ultralight aircraft, tool handles, tents, driveway markers, towed aircraft banners, electrical utilities, universities, national laboratories, concrete reinforcement, hinge pins, recreational vehicles, and the inventor with an idea for a new product. We are a unique source for sleeving adjacent sizes, in stock, and in even single piece quantity for prototyping! No need to pay for mill-runs just to see if a prototype will work. Our contacts and relationships allow us to provide superior product at lower cost than a single commercial user dealing direct with a single factory. Let us quote on your needs!

We can research and locate fiberglass products needed for your manufacturing, and in many cases suggest alternate or lower-cost solutions. Quantities for wholesale price breaks can be surprisingly small, and custom colors and lengths are possible as well. Inquire by email or telephone. 

Telephone hours are 7am to 4pm Eastern time, Monday – Friday.

We sell both retail and wholesale, any quantity… one piece or a truckload!


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Fiberglass Tube and Rod Products

Max-Gain Systems, Inc. carries a complete line of fiberglass , including fiberglass round tube, square tube, and solid rod. Most of our product line is designed to ” sleeve ” inside adjacent sizes, allowing almost any custom length and wall thickness, while at the same time retaining the ability to be shipped via USPS or FedEx! We are quite unique in that we sell our wide product line in small (even single piece!) retail quantities, which allows individuals and hobbyists, as well as industry prototyping research personnel to economically try multiple possibilities before buying larger quantities.

Fiberglass Tube and Rod

Max-Gain Systems, Inc. is also a wholesale supplier of fiberglass tube and rod to many of the best-known names in antenna manufacturing, both in the ham radio and military markets. We supply more fiberglass to more antenna manufacturers than any company in the world. We also supply fiberglass to many other industries and uses, such as ultralight aircraft, tool handles, tents, driveway markers, towed aircraft banners, electrical utilities, universities, national laboratories, concrete reinforcement, hinge pins, recreational vehicles, shallow water anchors, push poles, window coverings, masts and towers, and the inventor with an idea for a new product. We are a unique source for sleeving adjacent sizes, in stock, and in even single piece quantity for prototyping! No need to pay for mill-runs just to see if a prototype will work. Our contacts and relationships allow us to provide superior product at lower cost than a single commercial user dealing direct with a single factory. Let us quote on your needs!

We can research and locate fiberglass products needed for your manufacturing, and in many cases suggest alternate or lower-cost solutions. Quantities for wholesale price breaks can be surprisingly small, and custom colors and lengths are possible as well.

1. UV & Corrosion
Resistant
2. Flexible & High
Strength
3. Electrically
Non-Conductive
4. RF and EM
Transparent
5. Variety with
Consistency
6. Easily Fabricated
and Easy to Install
7. Highest Quality
manufactured
in the U.S.A.

Best Selling Fiberglass
Products

CONTACT US

Inquiry Form

Email: [email protected]

Phone: 770-973-6251

Fax: 815-461-7730

Max-Gain Systems, Inc. stocks a wide variety of fiberglass, ideal for: VHF and UHF antenna construction, satellite antenna cross booms, masts, quad spreaders (UHF to 40 Meters!), shaft material, open wire feedline spacers, and many other hobby uses. . Our line is designed with the needs of the amateur (ham) radio operator in mind. We carry a wide line of spreaders for quads and quagis… (UHF through 40 meters!), custom crossbooms for the satellite enthusiast, and non-inductive fiberglass masts. The ability to ship crossbooms and spreaders via USPS or FedEx can result in big savings compared to motor freight charges. We offer free tech help to our customers. We have the following, in stock, ready for shipment. Click on FIBERGLASS PRICE LIST to see our retail price list. 

Fiberglass Push-Up Masts!  Our new line of heavy duty fiberglass masts is now available in heights of up to 43 feet. Our line is also EASILY CUSTOMIZED to your particular need, as we sell our mast system BY THE PIECE! Our fiberglass masts all use full 1/8 inch wall fiberglass, not the flimsy thin-wall masts you have seen before. CLICK HERE to go to our push-up mast page !

 

 

 

 


Bristol Spline and Hex Wrenches, Drivers, and Bits

Max-Gain Systems, Inc. carries the entire range of Bristol Wrench Company spline products! Ours are GENUINE US made Bristol Wrench products, absolutely the highest quality available, and not cheap import copies.

Bristol spline wrenches, (sometimes erroneously called “Bristo” wrenches) are used in a wide variety of fields, including radio/communications, avionics, astronomy, refrigeration, engraving/printing, and construction/farm equipment. We sell a variety of spline “L” key kits, including the #SS-508, designed for radio/communications hobby use. Custom kits are also available in quantity for your particular industrial need. Visit our spline “L” key page.

We sell the entire line of Bristol spline screwdriver handles and straight bits (both in standard and optional longer lengths) favored by avionics shops, military, and other professional service technicians in many industries. For volume users, we sell many items in boxes of 100. Discounts and/or free shipping are available with increasing volume. For a complete product listing and numerous descriptions, visit our Bristol Wrench Company spline products page.


RF Connectors and Adapters

Max-Gain Systems, Inc. (MGS) is proud to offer a new line of the most popular types of RF adapters to our customers at very reasonable prices! After a long search, we have located a producer whose quality we were satisfied with (no small task at a reasonable cost) and we have become direct importers of these lines. We carry all of the “usual” types which include: UHF, N, BNC, RCA, TNC, SMA, mini-UHF, double banana, and 3.5 mm. We also carry the “Hard-to-Find” ones, which include: C, MC, MCX, MMCX, reverse polarity N (RP-N), reverse polarity SMA (RP-SMA), reverse polarity TNC (RP-TNC), SMB, SMC, and nano-SMA! Whether you are looking for adapters for Wi-fi, GPS, or Wi-Max, we are likely to have exactly what you need, all in top quality at VERY reasonable pricing!

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See our main connector and adapter
list by clicking the link below:

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Unlike most sellers of adapters, it is actually EASY to locate the adapter you need. Our adapter catalog page is cross-referenced, and contains PHOTOS of all adapters if you “aren’t quite sure what it is called”. Our catalog lists each adapter both ways….for example: the very popular part number 7330 (N male / UHF female adapter), is listed both under the “N” male adapters and under the UHF female (SO-239) sections. Simply pick either end of the adapter you want, look under that section, and quickly find your adapter. Still in doubt about what you need? Then you need our connector and adapter identification education page. From this page you can the exact connector you need as well as extra info about that connector.

BNC Male BNC Plug 50 ohm
BNC Female BNC Jack 50 ohm
BNC Male (Plug) 50 ohm
BNC Female (Jack) 50 ohm

Don’t know what connector you have?
See our Connector and
Adapter Identification page

UHF Male UHF Plug
UHF Female UHF Jack
UHFMale (Plug)
UHF Female (Jack)

Your satisfaction is always 100% guaranteed. If not satisfied for any reason whatsoever, just email for a return authorization, return connectors to us prepaid, and your purchase price will be immediately and cheerfully refunded. All you ever risk is shipping. Ask about price breaks for quantities, as well as wholesale pricing for resellers!

Don’t see what you want? We WILL be increasing our lines, but wish to see what our customers need first, so if you need one that we currently don’t carry, email us ( [email protected] ) with a description of what you want, and we will consider it for our next shipments.

Click here to go to our Connectors and Adapters pages:


Fixed and Variable Vacuum Capacitors

MGS is pleased to announce that we are an authorized reseller of all of the top brands of fixed and variable vacuum capacitors! We sell Jennings , Comet, and Greenstone Capacitors. We also carry many of their out of production capacitors as well as used capacitors to meet any need. We have stock of capacitors in the widest range of capacitance, voltages, and sizes. Don’t see the capacitor with the characteristics you need? Give us a call @ 770-973-6251 and we can find one that will get it done.

All of the top brands!
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CONTACT US

Inquiry Form

Email: [email protected]

Phone: 770-973-6251

Fax: 815-461-7730

Max-Gain Systems, Inc. also buys and sells vacuum variable capacitors (by Jennings, Aperex, and Dolinko & Wilkins, Inc.), vacuum relays (by Jennings, Kilovac, and Torr), KNOWN GOOD RF transmitting tubes (both ceramic and glass), variable inductors (both roller inductors and wiping contact types), and RF wattmeters and slugs by Bird, Struthers, and others. 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.


RF and Microwave Components

MGS is pleased to announce that we will be offering a LARGE selection of hard to find RF and microwave related items! After many customer requests to expand the very popular “President’s page” section, we have decided to expand the MGS product line to include military and commercial surplus RF and microwave items at VERY affordable prices, and with our famous MGS customer service and satisfaction guarantee. We will also be able to take many payment forms such as Visa and Mastercard, which are not available on the President’s page. Adding these lines to our website will take some time, but watch this section for an ever expanding list of vacuum variable capacitors, vacuum relays, tube sockets, high-end microwave components, and much, much more! If you have these items to sell, email us your list! (Photos helpful)

RF and Microwave Components Online Catalog

Max-Gain Systems, Inc. also buys and sells vacuum variable capacitors (by Jennings, Aperex, and Dolinko & Wilkins, Inc.), vacuum relays (by Jennings, Kilovac, and Torr), KNOWN GOOD RF transmitting tubes (both ceramic and glass), variable inductors (both roller inductors and wiping contact types), and RF wattmeters and slugs by Bird, Struthers, and others. 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.


The Best Ham-radio Related Links

Presenting the best ham-radio related links page on the planet! (At least WE think so!) The gang at Max-Gain has surfed the web for thousands of hours in search of the best ham radio sites. Here is a list of the best of the best. If you follow these links, you should be able to find the answer to any question you might have –as long as it’s related to ham radio—the greatest hobby on earth! Our links will let you find the answer fast without having to be away from the radio too long. Links to this site are invited and are very much appreciated! If you are a webmaster, or if you have a personal webpage, all we ask is that you link to this main index page, and not one of our side pages. URL’s of the side pages are subject to change, but will always be accessible from this main MGS index page. Thank you!

 

Click here to go to “The Best” Ham Radio-Related Links Page. 

 


Connectors & Adapters:

Main Connector & Adapter List (DON’T MISS!) | RF Connectors and Adapters grid

Wholesale RF Connectors & Adapters | Connector and Adapter Identification List

UHF Connectors and Adapters | 1/8 inch (3.5 mm) Connectors and Adapters | BNC Connectors and Adapters

Banana / Binding Post Connectors and Adapters | TNC Connectors and Adapters | mini-UHF Connectors and Adapters

General Radio 874 Series | General Radio 900 Series | APC-7 Series | Type C Connectors & Adapters

Type F Connectors & Adapters | FME Connectors & Adapters

Type HN Connectors & Adapters | Type LC & LT Connectors & Adapters

Type N – connectors and adapters | SC Connectors & Adapters

SMA Connectors & Adapters | Hardline or Heliax Connectors

Connectors for Bird Wattmeter line sections | PL-259 connectors

RP-N Connectors and Adapters | RP -SMA Connectors and Adapters | RP-TNC Connectors and Adapters

Crimp-On Connectors, Crimp Tools, and Die Sets

Bristol Wrenches:

Bristol Spline L-Key Kits | Spline Product Online Catalog | Hex L-Key Kits | Hex Product Online Catalog

Vacuum Variable Capacitors :

Variable: up to 200pf maximum | Variable: 201 – 500pf maximum

Variable: 501 – 1000pf maximum | Variable: over 1000pf

Vacuum Capacitor Mounting Flanges

Fixed Vacuum Capacitors:

Fixed: up to 50 pf maximum | Fixed: 51 – 200 pf pf maximum | Fixed: 201 – 500 pf maximum

Fixed: 501 – 1000  pf maximum | Fixed: over 1000  pf

Mounting Flanges

Vacuum Relays:

SPST types | SPDT types | DPDT types | 3PDT and 4PDT types

RF and Microwave Components:

Variable: up to 200pf maximum | Variable: 201 – 500pf maximum

Variable: 501 – 1000pf maximum | Variable: over 1000pf

Vacuum Capacitor Mounting Flanges

Fixed: up to 50 pf maximum | Fixed: 51 – 200 pf pf maximum | Fixed: 201 – 500 pf maximum

Fixed: 501 – 1000  pf maximum | Fixed: over 1000  pf

Mounting Flanges

SPST types | SPDT types | DPDT types | 3PDT and 4PDT types

With Type “N”connectors | With type BNC connectors | With Type SMA connectors | With type TNC connectors | With type APC-7 connectors | With type UHF connectors | With type LC or LT connectors | With mixed or miscellaneous connectors | Solid State Relays | Bird (and other) wattmeter elements (slugs), line sections, & accessories | Band switches | Surge Protectors and Lightning Arrestors | Attenuators | Transformer | ESCO and Amphenol RF Coaxial Switches | Shaft couplings, shafts, ceramic insulators, ceramic plate caps | Tube sockets, chimneys, and heat dissipating plate caps | Coaxial cables with connectors | “Doorknob” , disc, and other high-voltage capacitors | Fans and blowers | Air Variable Capacitors | Filters…Mechanical, Bandpass, etc. | <GR> General Radio connectors, adapters, and cables | Inductors, variable | Inductors, fixed | Resistors and rheostats | RF Dummy Loads and Microwave Delay Lines | Switches & Meters | DC Electric Motors /and Vacuum Capacitor Motor Drives | Semiconductor Devices | Transmitting Tubes | Mobile antenna mounts – High Power | RF Amplifiers and Antenna Couplers | Miscellaneous interesting items | Turns Counting Dials and Knobs  | High voltage wire, other wire, and cable | Electron tubes bought

MGS favorite links page