Extras

Following are available for trade or sale (USA only please). Please reach out if interested in any of these items. (All items are tested/working -- except noted as not-tested or parts-only.)

1) Five new/unused (not-tested) MRF-157 devices in original ESD cases, one H. Granberg RF Transistors book, one set of two, Input / Output PCBs, misc application notes/papers. Remainder of needed parts are readily available -- see

https://www.communication-concepts.com/content/AR347/AR347_Application_Note.pdf 

https://www.communication-concepts.com/ar347-subkits/

Photograph of 5 MRF157 FET devices in ESD foam with a copy of a RF Transistor Design book and a set of circuit boards on top of application notes.

2) Dell K16A001 Dual Thunderbolt USB-C Accessory Dock with LAPM160 240W AC adapter. Used in non-smoking office environment. Very good condition.

Photo of Dell K16A001 Dual Thunderbolt USB-C Accessory Dock with LAPM160 240W AC adapter. This device as two Thunderbolt connectors on the cable to the PC.
3) Leatherman MUT multi-tool (unused in original box)
Leatherman MUT multi-tool in original box with belt case.

4) Microlab/FXR AD-03N DC-4GHz 3 dB attenuator, 15 W average, some tarnish on silver connectors - works well...

Photo of a large RF attenuator with N-connectors, value is 3 dB attenuation.

5) Agilent 11752-60020 Connector Gage 3.5mm Male (center pin depth gage)

Photo of an Agilent APC-3.5/SMA center pin gauge.

6) Bird 43 elements (slugs), offered individually or as a pair.

Photo of two Bird Electronics elements (slugs) on a table. Values are 1W 800-950 MHz and 1W 60-80 MHz.
7) Microlab/FXR HW-08N DC inserter/extractor, offered individually or as a pair.
Photo of two DC power inserter/extractors on a desktop. RF path connectors are N Male and N Female. DC port is BNC Female.

8) Wiltron 63N50 VSWR Autotester (data sheet). This works well with a RF sweeper to create a low-cost scalar return loss analyzer. See below for in-use photo from 2024.

Photo of the Wiltron 63N50 VSWR Autotester. DUT port is N-Male, RF in is N-Female, Detector out is BNC-Female.
9) Wavetek 2001 SP-1443 1-1,400MHz (3 bands) RF Sweep Generator, photo below shows sweeper on left driving above VSWR Autotester with X-Y mode scope hooked up to display test antenna return loss curve.
Photo of Wavetek 2001 SP-1443 1-1,400MHz sweep generator in use with X-Y scope used as output display and Wiltron VSWR bride connected to test antenna.
10) Narda RF Detectors, 4506: SMA-M input, SMA-F output. 4507: APC-3.5 input, SMA-F output. Have two 4506 and one 4507. All are negative output polarity. Offered individually or as a set.
Photo of three Narda RF detectors on a desktop. Two cover from .01-18GHz and one covers from .01-26.5GHz.
11) APC-7 RF Adapters, as shown below. Offered all as set, or individual pairs.
Photo of three (pair) sets of APC-7 RF adapters, connecting to N-F, SMA-F and APC-3.5-F connectors.

12) Maury Microwave Calibration Items, APC-7 Termination, APC-7 Open, Qty 2 APC-7 Short, Qty 2 APC-3.5 Male Termination. Offered individually or as set (all).

Maury Microwave APC-7 open short term calibration items and APC-3.5-M 50 Ohm terms.

13) TNC Female Calibration Kit items, TNC-F Short, TNC-F Open. Offered individually or as set.

TNC Calibration kit Female items: Open and Short

14) Narda 378-NM N-Male Termination, 18 GHz, 1W.

Narda 378-NM 50 Ohm 18 GHz 1W termination.

15) Midwest Microwave 545F-20DB 20W, DC-26.5GHz. Female connectors at both ends. In original unopened packaging (not-tested).

20W 26.5GHz 20dB RF termination, new in bag.

16) HP/Agilent 11590B Option -001 Bias Network, APC-7 0.1-18GHz, with APC-7 to N-F/M and APC-7 to APC-3.5-F adapters.

HP 11590 Bias Network with APC-7 to N and APC-3.5-F adapters.

17) Comet Duplexer CF-350 with SO-239 connectors, 1.3-30 MHz, 50-240 MHz, Common port.

Comet CF-350 duplexer

18) HP/Agilent 11549A Power Splitter/Combiner, N-female connectors. Originally part of the HP/Agilent 11570A Accessory Kit.

HP 11549A two way power splitter, N-female connectors on all ports.

19) Anaren 4J0264 Wilkenson Power Splitter, 0.5 to 1.0 GHz, SMA-F connectors.

Anaren two way power splitter with SMA-F connectors on all ports.

20) M/A-COM 2032-6371-00 Hybrid Coupler, 2.0-18.0GHz, SMA-F connectors.

M/A-COM hybrid coupler RF device with SMA-F connectors on all ports.

21) Wiltron 22A50 APC-7 Calibration Item, OPEN and SHORT ends.

APC-7 calibration item has open on one end and short on the other.

22) Weinschel Engineering 1404GPA Precision APC-7 Termination, DC-18GHz.

APC-7 calibration termination, DC-18GHz.

23) HP/Agilent N-Male Calibration Item, OPEN, missing center pin.

Part of a HP N Calibration kit, N-Male Open (missing center pin).

24) APC-7 to SMA-F (female) adapters. Offered as pair only.

Pair of APC-7 to SMA-F adapters.

25) Microwave Associates N-Male Termination, Set of 4.

Photo of four N-Male 50 Ohm RF terminations.

26) HP/Agilent 11593A BNC-Male 50 Ohm Terminations. Set of 3.

Photo of three HP/Agilent 11593A 50Ohm BNC-Male terminations.

27) HP/Agilent 11048C 50 Ohm feed-through termination, BNC, 1W.

Photo of two HP/Agilent 11048C 50 Ohm 1W feed through BNC terminations.

28) Suhner BNC 50 Ohm terminations, Female or Male connectors. 

Photo of Suhner 50 Ohm terminations (4 BNC-Female and 12 BNC-Male).

29) Feed through terminations: (left) HP/Agilent 10100C DC-300 MHz, (right) Tektronix 011 0099-00 5W. Both have BNC-F and BNC-M connectors.

Photo of two broadband BNC 50 Ohm pass through terminations.

30) Microlab/FXR LB-B27 Low Pass Filter 1150MHz 

Photo of a RF low pass filter with N-F and N-M connectors.

31) HP/Agilent 8474B Coaxial Detector, N-Male sample port, BNC-Female output port. Detector has no output voltage with appropriate input signal applied. Appears to be mechannically complete. Parts-Only.

Photo of a HP8474B coaxial detector (defective -- no DC out with RF applied).

32) Texscan FP-20, 20 dB coaxial attenuator. N-F and N-M connectors. 

Photo of a N-connector RF 20 dB attenuator.

33) Dynatech U-Z APC-3.5/SMA center pin gauge (assembly tool).

Photo of three RF connector center pin gauge (SMA-M, APC-3.5-M)

34) RESERVED 

35) HP/Agilent 85700A Memory Cards (used with variety of HP test instruments). Three total, one has 8561e demo programs installed (per atttached sticker.)
Photo of three 85700A memory cards with ESD packaging.

36) Wiltron 58A50 Autotester (VSWR Bridge) + 28A50-1 50 Ohm APC-7 Termination. Autotester has APC-7 test port with N-Female RF In and RF Out ports.

Wiltron 58A50 Autotester (VSWR Bridge) + 28A50-1 50 Ohm APC-7 Termination. Autotester has APC-7 test port with N-Female RF In and RF Out ports.
   
Wiltron 58A50 Autotester (VSWR Bridge) + 28A50-1 50 Ohm APC-7 Termination. Autotester has APC-7 test port with N-Female RF In and RF Out ports.

37) Mini-Circuits ZFBT-4R2GW Coaxial Bias-Tee, 0.1 to 4200 MHz. (These are not marked with "+" in model number and are not lead-free.)

Photo of three Mini-Circuits ZFBT-4R2GW Coaxial Bias-Tee, 0.1 to 4200 MHz in a bag.

38) TECOM 505036D 2.4 to 2.485 GHz WiFi Antennas, Vertical. Standard N-Female connector.

Photo of two TECOM 505036D 2.4 to 2.485 GHz WiFi Antennas, Vertical. Standard N-Female connector.

39) HP/Agilent Attenuator Set 8495A OPT 001, 8494A OPT 001, 11716A. DC-4GHz, 0-70 dB and 0-11 dB settings with interconnect cable and stand. N-Female connectors.

Photo of HP/Agilent Attenuator Set 8495A OPT 001, 8494A OPT 001, 11716A. DC-4GHz, 0-70 dB and 0-11 dB settings with interconnect cable and stand. N-Female connectors.

40) Wiltron 560-97A50-1SWR Autotester, 10MHz-18GHz. APC-7 test port, N-F RF input port. One complete (not-tested) and one for parts (missing label and ??).

Photo of Wiltron 560-97A50-1SWR Autotester, 10MHz-18GHz. APC-7 test port, N-F RF input port. One complete (not-tested) and one for parts (missing label and ??).
    
Nice wooden box for the Wiltron autotester

41) HP/Agilent 905A Coaxial Sliding Load, 1.8-18GHz. N-Female connector only (other connectors are not included). Tested on 2/12/25 with CMT R54 Vector Impedance Probe from 1.8 to 5.4 GHz. Load was stable and provided desired 50 Ohm termination (~40 dB RL). See separate blog posting for test details using NanoVNA-H4 and CMT R54.

Photo of HP/Agilent 905A Coaxial Sliding Load, 1.8-18GHz. N-Female connector only (other connectors are not included). Appears to be mechanically complete. Not-tested.

42) Sensoray 2250S MPEG-1/2/4, JPEG frame grabber (USB video digitizer), not-tested.

Photo of Sensoray 2250S MPEG-1/2/4, JPEG frame grabber (USB video digitizer), not-tested.
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Other end of the item.

43) TEXSCAN RA-74 75 Ohm Attenuator, 0-50 dB in 1 dB steps, DC-1GHz. Has 75 Ohm BNC-Female connectors.

Photo of TEXSCAN RA-74 75 Ohm Attenuator, 0-50 dB in 1 dB steps, DC-1GHz. Has 75 Ohm BNC-Female connectors.
  
End view of the 75Ohm attenuator showing manual attenuator setting controls and indicator.

44) Narda 776B-20 RF Attenuator, 20 dB, 50W CW, DC-18GHz, N-F and N-M connectors.

End view of the Narda 776B-20 RF Attenuator, 20 dB, 50W CW, DC-18GHz, N-F and N-M connectors.
  
Side view of the Narda 776B-20 RF Attenuator, 20 dB, 50W CW, DC-18GHz, N-F and N-M connectors.

45) Tektronix P6202A 500 MHz 10X FET Probe, includes attenuator. Worked when last used with Tek-475 scope, but has broken tip at probe end. Possible replacement probe tips included for you to try... (Not-Tested, or Parts-Only as cannot test now -- sold scope).

Photo of bagged Tektronix P6202A 500 MHz 10X FET Probe.
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Photo of bagged accessories for the P6202 FET probe.

46) Tektronix P6137 10x passive probe with accessories, new in bag / unused (not-tested). Up to 400 MHz bandwidth depending on scope type. Has Tek-type male BNC connector with small protruding pin to set scope into 10X mode automatically. Typically works on other scope types with manual 10X attenuation set at scope input.

Tektronix P6137 10x passive probe with accessories, new in bag
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Tektronix P6137 10x passive probe with accessories, new in bag

47) Fluke 1953A Frequency Counter, A, B, and C (~750 MHz prescaler) inputs. Has GPIB interface.

48) Motorola Communications Monitor (photo and details coming soon)

49) HP/Agilent 5061-5458, 39.5" SMA-M to SMA-M 18GHz RF cable (Qty 5)

Photo of five HP/Agilent RF cables with SMA-M connectors and plastic covers on connectors.

50) HP/Agilent RF Cables, all ~24" length, 3 ea 8120-2292 (N-M to N-Male), 2 ea 8120-4779 (APC-7 to APC-7), 1 ea 8120-5639 (N-M to N-M).

Photo of six HP/Agilent RF cables, two have APC-7 connectors and four have N-M connectors.

51) HP/Agilent 8484A OPT H38 Power Sensor, 10MHz-18GHz, -70to-20dBm, good physical condition, reads ~6.2 dB low at -30dBm cal and at -60dBm cal levels (2 cal pads inline). Sensor only (no calibration pad or cable).

Photo of HP/Agilent 8484 RF power sensor. Functions, but is ~6 dB low in readout.

52) Calibration N-Female Short (unmarked, but similar to Narda 230-412).

Photo of a N-Female RF calibration item (Short)

53) Adams Russell Test Cables, 1 ea 12', 1 ea 10', 1 ea 6', Interchangeable RF connector ends: 1 ea N-M, 1 ea N-F, 5 ea APC-3.5-M, 2 ea APC-3.5-F, 1 ea Connector torque wrench and fixed wrench. Cable ends have glass tape overwrap for stress relief.

Photo of bagged Adams Russell test cables and accessories.

54) HP/Agilent 915E 4-50GHz 2.4mm Sliding Load (female), appears to be mechanically complete. Not-Tested. Part of HP/Agilent/Keysight 85056A 2.4mm Precision Calibration Kit (list price ~$25K USD for the complete kit). Center pin insertion plastic handle has epoxy repair completed with normal center pin movement and locking function. No center pin beads are included.

Photo of HP/Agilent 915E 4-50GHz 2.4mm Sliding Load, appears to be mechanically complete. Not-Tested.

55) RLC Electronics F-40-2000-R, 2 GHz High Pass Filter, SMA-M and SMA-F connectors.

Photo of slightly tarnished, but working RLC Electronics F-40-2000-R, 2 GHz High Pass Filter, SMA-M and SMA-F connectors.

56) Narda Power Dividers 4311B-4 4-way power divider, 4311-2 2-way power divider, 0.5-1.0GHz, 30W, SMA-Female connectors. Have used successfully at GPS L1 (1.575GHz).

Photo of Narda Power Dividers 4311B-4 4-way power divider, 4311-2 2-way power divider, 0.5-1.0GHz, 30W, SMA-Female connectors. Have used successfully at GPS L1 (1.575GHz).

57) K&L RF Filters, SMA-F connectors (frequencies as marked).

Photo of two K&L Microwave RF filters, 24 MHz Bandwidth, 3.7GHz Center and 3.62GHz centers.

58) UTE Microwave Circulators: 8 ea CT-3040-OT (2-4GHz with termination), 3 ea CT-3042-O (2-4GHz without termination), 3 ea CT-3036-OT (1.6-3.2GHz with termination). Connectors are SMA-Female.

Photo of a box of UTE Microwave Circulators: 8 ea CT-3040-OT (2-4GHz with termination), 3 ea CT-3042-O (2-4GHz without termination), 3 ea CT-3036-OT (1.6-3.2GHz with termination). Connectors are SMA-Female.

Plan to list additional items as time permits...