B&k Bk Model 700 Dynamic Mutual Conductance Tube Tester- Works

US $250.00

  • North Sioux City, South Dakota, United States
  • Mar 14th
B&K  MODEL 700  DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER Case has some rust, wear, and markings as per multiple photos. Case is structurally sound. Unit works. Four new electrolytic capacitors installed, correct to uF specification and superior to  original voltage capacity specification. New #55 Voltage control lamp- both working as pictured. Tested the internal 6BN8 on my Sencore- found to be good. Pots and rotary switches sprayed with deoxit. Tested with known good 6V6 and 5u4- found to work on both tests. The 6V6 test is pictured.   Tube chart included. You can get free digital documentation including manual, tube chart, calibration info,  and schematic here: http://bama.edebris.com/manuals/b&k/700/.  I also found a good web site regarding these units here: http://tubesound.com/2008/03/23/bk-707-tube-tester/  As with all old/ vintage equipment we buy and sell, this unit is Sold as is. No Warranty, No Returns.  Read description carefully before bidding. Lower 48 USA sales only please. Boxed carefully and shipped quickly by your choice of FedEx or UPS. Thank you for looking!

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