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VT-7B/U Military Tube Tester Upgraded Calibrated Digital Meter SS83R Forway For Sale


VT-7B/U Military Tube Tester Upgraded Calibrated Digital Meter SS83R Forway
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VT-7B/U Military Tube Tester Upgraded Calibrated Digital Meter SS83R Forway:
$516.60

TV-7B/U Military Tube Tester

This tester was rebuilt, upgraded and calibrated by none other than Dan Nelson in August 2014. Winner will get the calibration sheet and workorder that pertains to this tester that wasprovided by Dan when work was done. His remarks is the \"The unit is in very good shape and the calibration came out very good. He also installed many things to upgrade the tester to TV-7 D/U standards like ferrite beads on the 9 pin socket to prevent oscillation on hi gm tubes like 6DJ8 and so.

I used this tester mostly for checking rectifiers and antique radio tubes. Please see my response from my customers about those tubes. When I got the tester, the first thing I did was make a calibration tube (6L6) so I could keep track of how it was doing. I replaced the tube 83 with the SS83R I sell on (item #121662858895). This saves about 10 watts of heat inside the tester and helps with keeping it in calibration. I then added the digital meter made by Dan. I retested the calibration tube and readings where the same. Picture 4 shows it testing the calibration tube.

Here is how I use it for extra long tester life. First before I turn it on, I turn the line adjust control to full counter clockwise. I then have it plugged into a variac set about 80 volts. I turn on the tester and turn the line control all the way up while monitoring line set on meter. I then use the variac to adjust line set. Once set, your variac will be putting out about 93 volts which is what the tester is designed to operate at. This in reality takes the line control pot out of the picture and you will get greater control of your line set and less heat inside the tester. Always turn the line control full counter clockwise before turning on any tube tester to prevent surges that can cause tester problems.

It looks a previous owner repainted the cabinet. Everything works on it like it should and is very close to my Amplitrex readings.

Tester will come with the calibration tube, a CDrom (item #400938780765) that has about everything you need to know about the TV-7 series tube testers, 9 & 12 pin compactron adapters with test data for testing tubes like 6JE6C and 6KD6 . This is a very nice tester and you won\'t be disappointed. 30 day money back hassle free guarantee.

This will be carefully pack with plenty of protection.

Payment is duw within 48 hours of sale end.

Pictures tell the rest of the story and are part of the description so please take a close LOOK at them. WYSIWYG

Please ask any questions before you offer to avoid any communication problems or disappointments.

Why Buy From Elderly Electronics:

  • I\'m happy to combine shipping on sales ending within a couple of days of each other to save you all I can. If you win several Buy It Now sales, I will refund shipping overcharges when items ship. Non Profit shipping. You pay actual shipping charges only. Items usually ship within 1 day and many times the same day if paid by 3 pm CST. Careful packaging for safe transit.
  • Hassle free30day money back guarantee so you may check items out.
  • Fast problem resolution ~ return shipping paid by us if product proves defective.
  • Positive response left for you once payment is received as you have done your part. I will strive for positive five star response from you by describing item accurately, packing item so it will arrive safely and then sending tracking information when item ships all of which I will do.
  • Trusted Seller ~ Member since 1999 ~ Please check my response
International buyers: We ship worldwide with free insuranceand welcome your business.

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