Custom Test Probe - Assembled - B&K 277/B&K 290 FET VOMs/Solid State VTVMs

Description

This Listing is for the
- KK4HXJ -
Deluxe B&K 277/290 assembled test probe set
The
B&K 277/290 are
FET VOMs or "Solid State VTVMs" which used a switchable test probe like most VTVMs of the day - These meters have special needs
these meters are especially subject to RF inteference on low voltage ranges and shielding of test leads is imperitive, the design uses a BNC connector to help maintain shielding and an adapter to mate to meters Banana plugs - this makes a much more durable probe than mating to Banana Plugs directly and makes it easier to maintain the ever important shielding!
This auction is for a
completely assembled set of test probes
for the B&K 277 and 290 meters and includes a Banana plug to BNC adapter
This probe is identical to my Simpson 313 Series probe, except it uses a 100K Ohm Resistor instead of a 1 Meg Resistor and needs to be adapted to dual banana plugs
This is hand assembled by me using components from my popular Deluxe VTVM probe kits sold here on eBay, using my methods and good attention to detail.
The unit is presented in a Labeled, Retail Quality, Reusable, 4 Mil Poly Ziplock Bag and is wrapped with a Reusable Velcro Strip to keep the leads organized and ready.
This dual probe setup,  serves as a substitute for the mostly missing or incomplete original test probe which used a switch at the tip of the probe to switch the Resistor in/out of the circuit.
This Siamese or Dual-Probe arrangement involves using one probe for DC Measurement (with the resistor installed) and the other probe for AC/Ohms Measurement.
The probes are built from my kit which is composed of the following items (many of which are hard to source economically):
1 Pair of Genuine Philmore Test Probes - 1 Red/1 Black
1 BNC connector with heat shrink Sleeve
1 100K Ohm 1/2 Watt Resistor
1 Alligator Clip & Heat Shrink Tubing
2 Laminated Self Adhesive Probe Labels and Clear Heat Shrink Tubing to cover the probe labels, resulting in a professional and durable setup (see photos)
2 36" lengths of RG174 Coaxial Wire (used for DC & AC/Ohms test Leads) (Very Flexible - makes a great test lead)
1 36" Length of 18 Gauge Rubber Test Lead Wire (Very Flexible - High Quality) for the Ground Lead
The original instructions specify shielded cable for the leads, the original supplied wire was a coaxial microphone style wire, many people use either standard (unshielded) test probe wire for the leads or a shielded coaxial cable, I use shielded black RG174 for the 2 leads and Black test probe wire for the ground - this is particularly important for this meter
I have shipped these probes and kits to several dozen countries and have received nothing but praise for bot the kits and probes, I think you too will be pleased with this simple and durable set to get that old meter back in service!
I build and sell many probe and test lead sets click the link for current listings available in my Store:
https://www.ebay.com/str/kk4hxj/Custom-Test-Leads-Test-Probes-/_i.html?_storecat=27854182016
Feel free to contact me with any questions regarding this or any of my other probe assemblies or kits!
I Ship First Class with tracking to meet eBay Guidelines
U.S. Shipper - Ships immediately
I Combine shipping on all auctions -
Please add all items to shopping cart before checkout
- eBay usually charges the correct shipping - if you order more than 1 item and eBay does not calculate combined shipping correctly, you can either wait for an invoice with the total, or go ahead and pay for all items with ebay calculated shipping and I will refund you any overages, based upon the actual cost of shipping! - In no case will shipping ever exceed .20
Thanks for looking and 73's from Kentcraft, LLC & KK4HXJ eBay Store