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APC-7 Connectors and Adapters

After looking at this page dedicated to our type APC-7 connectors, BE CERTAIN to visit our main RF connector and adapter page, here:  Our main page has hundreds of hard to find types and combinations, including adapters for reverse polarity, GPS, and Wi-fi applications! Again, all top quality, and lowest prices!

Max-Gain Systems, Inc. (MGS) is proud to offer an excellent assortment of APC-7 series connectors, adapters, terminations, attenuators, and detectors.

The APC-7 ("Amphenol Precision Connectors") are a 50 ohm, unisex (every APC-7 mates with every other APC-7) series, rated to 18 Ghz. Super high quality gold-plated beryllium copper and extreme tolerances make these the series of choice for a wide variety of high-end test equipment.

New cost on many of these is almost prohibitive for many, but we have acquired a wide variety of "removed from military equipment" APC-7 items which we can offer at excellent prices! Though used, these are guaranteed serviceable and come with our 100% satisfaction guarantee, less only shipping should refund or exchange be requested.

APC-7 Connectors and Adapters
Attenuator, 20 dB HP (Agilent) 8492A 18Ghz rated
Stock No. apc7-02
$59.00 each
Attenuator, 30 dB HP (Agilent) 8492A 18Ghz rated
Stock No. apc7-03
$59.00 each
Attenuator, 40 dB HP (Agilent) 8492A 18Ghz rated
Stock No. apc7-04
$59.00 each
Attenuator, 50 dB HP (Agilent) 8492A 18Ghz rated
Stock No. apc7-05
$59.00 each
Attenuator, 60 dB HP (Agilent) 8492A 18Ghz rated
Stock No. apc7-06
$59.00 each
Midwest Microwave model 2052 termination, 50 ohms, DC-18 Ghz
Stock No. apc7-08
$69.00 each
Adapter, APC-7 to SC male (rare!)
Stock No. apc7-12
$69.00 each
Attenuators, 3 dB Midwest Microwave mod. 431-3-002
Stock No. apc7-14
$49.00 each
Attenuators, 6 dB Weinschel Engineering
Stock No. apc7-15
$49.00 each
Attenuators, 20 dB, HP model 8492A Midwest Microwave model 431-20-002
Stock No. apc7-17
$49.00 each
Attenuators, 30 dB, Weinschel Engineering Midwest Microwave model 431-30-002
Stock No. apc7-18
$59.00 each
Attenuators, 40 dB Weinschel Engineering
Stock No. apc7-19
$59.00 each
Attenuators, 60 dB Weinschel Engineering
Stock No. apc7-20
$59.00 each
Schottky Detector, .01-18 Ghz., Zero Bias Midisco, Commack, NY model MDC 1087
Stock No. apc7-21
$69.00 each

Proper technique for connecting 7mm (APC-7) connectors:

Spin the knurled outer connector nuts on the two connectors so that one has its threaded connector sleeve fully extended, and the other is fully retracted. Carefully press the connectors together and thread the connector nut onto the extended sleeve, until it is finger tight. You should turn only the outer connector nut, and not the connector body, so that you do not rotate and scrape the mating surfaces. Now finish tightening the connectors with a 12 lb-in torque wrench.

When you are finished, one of the outer connector nuts should still be loose, and you should leave it this way. Do not tighten this nut up against the other one, jamming them together. What this does is apply a force that tries to push the connectors apart, thereby reducing the contact pressure at their mating surfaces. In other words, it loosens up the connection where it really matters. There is absolutely no reason to jam these outer nuts together; it is a bad thing to do.


To order, use our secure online order form , or call us Monday through Friday 7 AM - 4 PM Eastern time at 770-973-6251 . You may also print the order form using your browser's print button and fax your order to us at  815-461-7730 .


We normally ship connector and adapter orders via priority post flat-rate boxes, as the cheapest / best method for USA domestic shipments. We can ship anything that will fit (even the small flat-rate box can fit over 100 PL-259 connectors!) for a very low flat rate postage charge plus a flat rate packing charge of $2.00 per order.  We supply delivery confirmation on Priority Mail shipments at no extra charge. We also ship via FedEx ground, and $100 in insurance (and tracking) is provided at no extra charge. FedEx ground is usually best option on heavier shipments. (If you have a shipping preference, just let us know.) We will be happy to quote shipping cost before shipping your order if you request.  International customers inquire for shipping options and quotes.

Duties, customs charges, VAT, and / or brokerages fees,  (if any might apply for your country) are impossible for the shipper to determine, and are ALWAYS the responsibility of the purchaser. International customers agree to pay any and all additional charges that may be billed to cover these items.












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