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#1
Posted to rec.audio.tubes
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FS two B&K 707 tube testers
Serial number T11717
This model 707 B&K tube tester is just about 95% in mint condition. There are no tears in the vinyl and all printing is clear and un-faded. Includes a test chart, instruction manual, addendums and plate/grid cap adaptor. There are slight rust pits on the clasps The tubes are good and all electrolytics and out of tolerance resistors have been changed. The unit was calibrated on 12/14.08 Shown testing a 6l6 tube. Serial number T20303 This model 707 B&K tube tester is just about 80% in mint condition. The power transformer has been changed to B&K 065-088-9-001 as there is no 5V filament voltage for the 83 tube it does not use one. There are two small tears in the vinyl on the bottom and the printing is not faded. Includes a test chart, instruction manual copy, of addendums and plate/grid cap adaptor. There are slight rust pits on the clasps The other tube is good and all electrolytics and out of tolerance resistors have been changed. The unit was calibrated on 12/14.08 Shown testing a 6l6 tube. Will ship to USA address only. send me an e-mail (((( richklestinez(at)charter.net ))))))) change the (at) to @ I will send you the pictures of them testing a 6L6 tube. Most of them I have seen on e-bay and this one http://www.vacuumtubes.com/B&K_707.html seem to be in the $300 to $400 range if they are working and in good shape. I have a TV-7/U also that I will be selling as soon as I get rid of all the tubes that I have. It is my pride an joy and is pretty darn good shape although I havent calibrated it in about 3 years. Let me know Rich Klestinez The Amp Man Fort Worth TX. |
#2
Posted to rec.audio.tubes
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FS two B&K 707 tube testers
On Dec 18, 12:28*pm, "Rich Klestinez" wrote:
Serial number T11717 This model 707 B&K tube tester is just about 95% in mint condition. There are no tears in the vinyl and all printing is clear and un-faded. *Includes a test chart, instruction manual, addendums and plate/grid cap adaptor. There are slight rust pits on the clasps The tubes are good and all electrolytics and out of tolerance resistors have been changed. *The unit was calibrated on 12/14.08 Shown testing a 6l6 tube. Serial number T20303 This model 707 B&K tube tester is just about 80% in mint condition. *The power transformer has been changed to B&K 065-088-9-001 as there is no 5V filament voltage for the 83 tube it does not use one. There are two small tears in the vinyl on the bottom and the printing is not faded. *Includes a test chart, instruction manual copy, of addendums and plate/grid cap adaptor. There are slight rust pits on the clasps The other tube is good and all electrolytics and out of tolerance resistors have been changed. *The unit was calibrated on 12/14.08 Shown testing a 6l6 tube. Will ship to USA address only. send me an e-mail *(((( richklestinez(at)charter.net ))))))) *change the (at) to @ I will send you the pictures of them testing a 6L6 tube. Most of them I have seen on e-bay and this onehttp://www.vacuumtubes.com/B&K_707.html* seem to be in the $300 to $400 range if they are working and in good shape. I have a TV-7/U also that I will be selling as soon as I get rid of all the tubes that I have. It is my pride an joy and is pretty darn good shape although I havent calibrated it in about 3 years. Let me know Rich Klestinez The Amp Man Fort Worth TX. For the record, the B&Ks are Dynamic Mutual Conductance Testers. This makes them somewhat less accurate than a Mutual Conductance Tester (per the literature ~+/-15% less) but far more accurate and far more useful than simple emissions-only testers. The Hickok-pattern TV-7 is a true Mutual Conductance Tester, and as it is the Military version, much sought after. Only the "B" version was actually made by Hickok. Neither is capable of matching tubes as-configured. Neither is capable of adjustable bias. Both are fair-to-good testers otherwise as these things go and true work-horses in their day. More on B&K testers here (Not my site, but a good one): http://tone-lizard.com/B&K.html Peter Wieck Melrose Park, PA |
#3
Posted to rec.audio.tubes
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FS two B&K 707 tube testers
On 19 Dec, 00:39, Peter Wieck wrote:
On Dec 18, 12:28*pm, "Rich Klestinez" wrote: Serial number T11717 This model 707 B&K tube tester is just about 95% in mint condition. There are no tears in the vinyl and all printing is clear and un-faded. *Includes a test chart, instruction manual, addendums and plate/grid cap adaptor. There are slight rust pits on the clasps The tubes are good and all electrolytics and out of tolerance resistors have been changed. *The unit was calibrated on 12/14.08 Shown testing a 6l6 tube. Serial number T20303 This model 707 B&K tube tester is just about 80% in mint condition. *The power transformer has been changed to B&K 065-088-9-001 as there is no 5V filament voltage for the 83 tube it does not use one. There are two small tears in the vinyl on the bottom and the printing is not faded. *Includes a test chart, instruction manual copy, of addendums and plate/grid cap adaptor. There are slight rust pits on the clasps The other tube is good and all electrolytics and out of tolerance resistors have been changed. *The unit was calibrated on 12/14.08 Shown testing a 6l6 tube. Will ship to USA address only. send me an e-mail *(((( richklestinez(at)charter.net ))))))) *change the (at) to @ I will send you the pictures of them testing a 6L6 tube. Most of them I have seen on e-bay and this onehttp://www.vacuumtubes.com/B&K_707.html*seem to be in the $300 to $400 range if they are working and in good shape. I have a TV-7/U also that I will be selling as soon as I get rid of all the tubes that I have. It is my pride an joy and is pretty darn good shape although I havent calibrated it in about 3 years. Let me know Rich Klestinez The Amp Man Fort Worth TX. For the record, the B&Ks are Dynamic Mutual Conductance Testers. This makes them somewhat less accurate than a Mutual Conductance Tester (per the literature ~+/-15% less) but far more accurate and far more useful than simple emissions-only testers. The Hickok-pattern TV-7 is a true Mutual Conductance Tester, and as it is the Military version, much sought after. Only the "B" version was actually made by Hickok. Neither is capable of matching tubes as-configured. Neither is capable of adjustable bias. Both are fair-to-good testers otherwise as these things go and true work-horses in their day. More on B&K testers here (Not my site, but a good one): http://tone-lizard.com/B&K.html Peter Wieck Melrose Park, PA- Hide quoted text - - Show quoted text - Excellent, When I worked in the TV repair shop the old boy Mr Craft had a HK tube rejuvinator/tester. It did work, my first TV was a ****ty little Furgy. It had a blown supply when Mr Craft put it on my bench (He knew they were crap and it would be good for me to cut my teeth on) I modded it and it worked well. He was suprised by this as they were really very bad. Any way the ****e Panasonic tube they used was rough as arse. He stuck it on the BK and made me leave the room, I now know why as it is pretty brutal. The TV lasted another 15 years, even then it was OK just the **** poor degaus circuit was buggered and it looked like a rainbow;-) Matt |
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