Customer Reviews of AF4K Products and services.
E-mail to arrange purchase - CLICK HERE - include your zip code.
Here is a beautiful precision instrument.
* Frequency range: 10 Hz - 10MHz
* Analog Voltmeter, with 12 ranges from 1mV to 300 V
The 400E AC Voltmeter is primarily intended as a voltmeter, however it can indicate both voltage and dB. The meter has a linear AC scale with a logarithmic dB scale underneath. The voltage range is 1 mV to 300 V full scale. The dB range is -72 dBm to +52 dBm. Meter calibration responds to the absolute average value of the applied signal, calibrated in RMS volts from 10Hz to 10MHz. The accuracy as a % of reading is: ±4% (10 to 20Hz), ±2% (20 to 40Hz), ±1% (40Hz to 2MHz), ±2% (2 to 4MHz), ±4% (4 to 10MHz). Input impedance is 10 Mohms. The AC amplifier output is 150 mV rms open circuit for full scale meter indication.
Excellent condition. Compare online at $150.00 typical commercial price. Manual copy and power cord is included.If I find the original manual, that will be included also.
Available for $45.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
Here is a nice, fully tested Hewlett Packard 3310B signal generator. The 3310B Function Generator is a small, lightweight, function generator. Stable, accurate signals which can be synchronized with an external source are instantly available over a frequency range from 0.0001 Hz to 5 MHz. Separate adjustable LOW/HIGH outputs are located on the front-panel.
I will include a copy of the manual. If I find that I have the original manual, that will also be included at no extra charge.
Available for $60.00 plus shipping. (MIGHT BE SOLD)
E-mail Bry Carling, AF4K to arrange purchase.
This frequency measuring set is form the UK Military. Excellent condition.
Available for $159.00 plus shipping.
Similar to the one shown here but with no shoulder strap:
http://www.royalsignals.org.uk/photos/ts175.htm
E-mail Bry Carling, AF4K to arrange purchase.
Absolutely beautiful USA made meter with test leads etc.
Mint condition.
Available for $59.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
This beautiful USA-made industrial grade analog multi-meter set comes with the original leather case and accessories. It is in new, show-room condition. Complete with all leads, batteries, probes, clips and especially important the high current clamps and switchable probes as shown below. Model 10 adapter allows direct / Divide by 10 and Divide by 20 settings.
Capable of measuring many voltage and current ranges.
DC Voltage RANGES: 0-3, 12, 60, 300, 600V
AC Voltage Ranges: RANGES: 0-3, 12, 60, 300, 600V
DC Current Rantges: RANGES: 600uA, 6mA, 60mA, 600mA
Resistance RANGES: 0-20K Ohms, 200K Ohms, 2M Ohms, 20M Ohms (200 Ohms center scale on lowest range)
When using the 10C add-on probe it can also measure:
0 - 6A
0 - 12A
0 - 30A
0 - 60A
0 - 120A
0 - 300A
Can your multimeter do that?
Accessories included - Carrying case, Model 10-C Clamp-On, Model 10 adapter, 42" safety test leads, screw-on insulated alligator clips and instruction manual copy.
Dimensions: 4-1/4" x 2-3/4" x 1-5/16" (70mm x 33.5mm x 108mm) This complete set normally sells for $169.00 new, and around $125.00 used.
Available for $95.00 plus shipping.
MIGHT BE SOLD - checking!
E-mail Bry Carling, AF4K to arrange purchase.
Here is a great little USA made, portable multi tester with many accessories, test leads, clamp-on ammeter probes etc.
Available for $95.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
This excellent Bench Multimeter is in very good operating condition.
Available for $49.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
Unique little tester wuth the COOL MAGIC EYE!
Available for $50.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
CS137 Military crystal case - excellent condition - holds 120 standard FT243 crystals.
Available for $30.00 each plus shipping.
THREE ARE AVAILABLE as of 28 FEB 2018
DETAILS AND BUTTON HERE!
E-mail Bry Carling, AF4K to arrange purchase.
SOLD OUT - DETAILS AND BUTTON HERE!
SOLD OUT AS OF 6 NOVEMBER, 2017
TEKTRONIX 109 Pulse Generator for use with oscilloscope. Great condition. Tested. Comes with accessories (for microwave calibrations)
The 109's operating principle is that of a charged transmission line pulse generator with a mechanical reed switch and external 50 ? transmission line/lines attached through two GR-874 50 ? connectors. The length of the external cables determines the impulse width. Using two transmission lines of non-equal length, alternating pulses having different width can be produced. Alternatively, an R-C network can be used to create pulses with R-C decay characteristic but longer duration.
The pulse-generating switch in the 109 is a mechanical mercury switch, which limits pulse frequency to about 600 Hz. Moreover, this switch has a relatively short life time (200 hours) — if the operator forgets to shut the 109 down over the weekend and some holidays, the reed switch will need replacement.
The internal voltage source is adjustable from 0 to 50 V in three ranges (0.5 V, 5 V, 50 V), either positive or negative. Using external voltage sources, pulses up to 300 V of either polarity are possible, including alternating positive/negative pulses.
Available for $49.95 plus shipping
E-mail Bry Carling, AF4K to arrange purchase.
Here is a super nice SIMPSON 713 Frequency Counter 512 MHz - EXCELLENT lab quality frequency measurements. Available for $40.00 plus shipping
E-mail Bry Carling, AF4K to arrange purchase.
Here is a nice old HP3400A, RMS voltmeter, with manual. Untested and may need work. Might be fine. Manual copy included. If I find the original manual, I will include that also.
Available for $15.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
HP415B, SWR Meter, untested. May need work. May be just fine. I will include a copy of the operations and service manual. If I find the original here, it will be included at no extra charge.
Available for $39.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
Beautiful HP DC Microvolt / Micro-ammeter.
This super sensitive lab instrument has voltage and current ranges of:
0 - 10 uV
0 - 30 uV
0 - 100 uV
0 - 1 mV
0 - 3 mV
0 - 10 mV
0 - 30 mV
0 - 100 mV
0 - 1 V
0 - 10 uuA
0 - 30 uuA
0 - 100 uuA
0 - 3 muA
0 - 10 muA
0 - .1uA
0 - .3 uA
0 - 1 uA
0 - .003 mA
0 - .010 mA
0 - .03 mA
0 - .3 mA
0 - 1 mA
0 - 3 mA
I have not found the probe for it. A copy of the complete service and operating manual will be included. If I find the original manual and /or the probe before it ships, I will include those also.
Available for $35.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
HP475 DC micro-ammeter, no probe. Untested. May need work. Looks complete. If I find the manual before it ships, it will be included at no charge,
Available for $25.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
HP 5381A Frequency Counter, untested. Nice older model, good for 0 - 80 MHz. It may work fine. Not sure. A copy of the opereration and service manual is included at no charge. Also, if I can find the original manul, that will be included also.
Available for $15.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
HP 5382A Frequency Counter, untested. It may work fine. Not sure. A copy of the opereration and service manual is included at no charge. If I find the original manul, that will be included also.
Available for $15.00 plus shipping.
E-mail Bry Carling, AF4K to arrange purchase.
E-mail to inquire or arrange purchase - CLICK HERE - include zip code.
E-mail Bry Carling, AF4K to arrange purchase.
E-mail Bry Carling, AF4K to arrange purchase.
Add shipping costs to all prices
73 from Brian ((( Amateur Radio G3XLQ / AF4K )))
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