Hi up for consideration is a single unused 12ax7 / ecc83 tube what you are buying is one only tube. thanks for looking. If there is a particular tube you are trying to obtain then send me a message and i will see if i have it .....there are so many tubes to cover that listing can be quite a job to keep up with..... Please note that I can send parcels through budget postage that can save you some cash however ebay will not cover you if the parcel is lost .....Australian economy post does register the item and issues a registration number but does not issue tracking with it .....please send me a message regarding this prior to checkout if you wish to do this. If you choose economy post then YOU become responsible if the parcel is lost and no refunds will be sent for non collection..

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va = 250V Vg=-2V Ia=1,2mA (Va=250V Vg=-1V Ia=3,2mA) HICKOK TV7D/U EV7-6080 B12 B min=32 (65%) EV2-1030 B12 B min=32 (65%) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) I66 MINIWATT SHORT GREY RIBBED PLATES DIMPLE GETTER ?0J1 code 1,5mA/1,2mA (3,8/3,3) 1,5mA/1,5mA (3,8/3,8) 60/54; 57/50 ! NEW OLD STOCK ! CHECK ALL THE LIST TO BUY OTHER REFERENCES AND COMBINE SHIPPING PLEASE CONTACT ME BEFORE BUYING TO CHECK THE BEST OPTION FOR THE SHIPPING COSTSTUBES ARE QUITE FRAGILE, SO YOU SHOULD PAY A BIT MORE FOR A SAFE PACKAGE THAN A BUBBLE LETTER. I DECLINE ANY RESPONSABILITIES IF YOU CHOOSE LETTER AND YOUR ITEMS ARE DAMAGED DURING TRANSPORT...

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va = 250V Vg=-2V Ia=1,2mA (Va=250V Vg=-1V Ia=3,2mA) HICKOK TV7D/U EV7-6080 B12 B min=32 (65%) EV2-1030 B12 B min=32 (65%) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) I66 Philips MiniWatt HeeRLEN code 3D2 short plates 1,2mA/1,0mA (3,2/3,0) 52/50 Most common Heerlen modelhttp://www.tube-classics.de/TC/Tubes/Valvo%20ECC83/ECC83.htm ! NEW OLD STOCK ! CHECK ALL THE LIST TO BUY OTHER REFERENCES AND COMBINE SHIPPING PLEASE CONTACT ME BEFORE BUYING TO CHECK THE BEST OPTION FOR THE SHIPPING COSTSTUBES ARE QUITE FRAGILE, SO YOU SHOULD PAY A BIT MORE FOR A SAFE PACKAGE THAN A BUBBLE LETTER. I DECLINE ANY RESPONSABILITIES IF YOU CHOOSE LETTER AND YOUR ITEMS ARE DAMAGED DURING TRANSPORT...

TESTS CONDITIONS (datasheet) DUOVAC RADIOELEC Va = 250V Vg=-2V Ia=1,2mA (Va=250V Vg=-1V Ia=3,2mA) HICKOK TV7D/U EV7-6080 B12 B min=32 (65%) EV2-1030 B12 B min=32 (65%) Please note that HICKOK is not a laboratory tester, though it is very well calibrated...HERE is how I calibrated mine following manual services specifications. I calibrated it to respect the low of the scale for filament... High voltage on filament would damage it...but gives higher values...0.6 (065-0.72) -->0.65V ; 1.1 (1.06-1.16) -->1.14V ; 1.5 (1.26-1.42) -->1.30V ; 2.0 (1.90-2.10) -->1.95V ; 2.5 (2.56-2.88) -->2.77V ; 3.0 (3.25-3.60) -->3.25V ; 4.3 (4.30-4.75) -->4.55V ; 5.0 (5.15-5.68) -->5.49V ; 6.3 (6.20-6.80) -->6.47V ; 7.5 (7.32-8.10) -->7.45V ; 10 (9.60-10.80) -->10.03V ; 12.6 (12.1-13.3) -->12.25V ; 20 (19.0-21.0) -->20.50V ; 25 (25.3-28.0) -->27.65V ; 35 (35.2-39.0) -->38.09V ; 50 (51.5-57.0) -->52.80V ; 75 (74.0-82.0) -->74.82V ; 117 (115-127) -->116.5VIf needed, i can share all other tests calibrations I get (129.5V/130V +o-3V ; 41.35V/40V +o-2V ; 4.21V/4V +o-1V ; 56.5V /56V....) mCN MINIWATT ULTRA RARE COPPER ANODES LONG GREY PLATES 45° D-FOIL GETTER mCn ?N bottom code 1,5mA/1,6mA (3,7/3,9) 56/58 ! NEW OLD STOCK ! CHECK ALL THE LIST TO BUY OTHER REFERENCES AND COMBINE SHIPPING PLEASE CONTACT ME BEFORE BUYING TO CHECK THE BEST OPTION FOR THE SHIPPING COSTSTUBES ARE QUITE FRAGILE, SO YOU SHOULD PAY A BIT MORE FOR A SAFE PACKAGE THAN A BUBBLE LETTER. I DECLINE ANY RESPONSABILITIES IF YOU CHOOSE LETTER AND YOUR ITEMS ARE DAMAGED DURING TRANSPORT...

ECC83 Röhrenkonvolut Siemens, Brimar, Miniwatt geprüft mit Funke W19. Siemens 3,3/3,2mA, Brimar 2,9/2,9mAMiniwatt 3,4/3,4mA

100% GUARANTEED THIS TUBE IS IN NEW CONDITION WORKING FANTASTIC . PHILIPS MINIWATT ECC83 / 12AX7 HIGH GRADE VINTAGE HOLLAND MADE TUBE THIS BEAUTIFUL HOLLAND MADE TUBE IS MADE WITH A D FOIL GETTER MADE WITH SEAMED THICK GLASS & TALL RIBBED PLATES YOU WILL GET THE TUBE IN THE PHOTOS FOR THE PRICE

4 X TUBI ECC83 PHILIPS TESTATI CON 6000A Quartetto ben Bilanciato

COPPIA ECC83 12AX7 PHILIPS MINIWATT MARCHIATE GELOSO Testate perfettamente bilanciate VALORI I-177 V1# SEZ.1 7250 SEZ.2 7250 V2# SEZ.1 7250 SEZ.2 7250 MicroMHOS

PHILPS MINIWATT ECC83LONG PLATES, SQUARE GETTER TESTED 84%BALANCED.

QUAD OF PHILIPS MINIWATT HOLLAND ECC83 12AX7TESTED HICKOK TV-7/UMINIMUM 32/32 ( NOS 49/49 )RESULTS TUBE 1 = 61/62 - CODE I65 ?2C3RESULTS TUBE 2 = 60/62 - CODE I65 ?2C4RESULTS TUBE 3 = 61/62 - CODE I65 ?2G4RESULTS TUBE 4 = 60/59 - CODE I65 ?3A5 SHORT RIBBED GRAY PLATES, RING GETTER MADE IN HEERLEN HOLLAND, 1962/1963 PRODUCTION IN NEW REPRO PHILIPS PAPER BOX

This offer is for 1 piece 1 x ECC83 (12AX7) Philips Miniwatt - Made in Holland good print - early type - square D getter code on tube: mC? ? 7A tested on Sencore Mighty Mite II - TC114 Tubetester + Funke W18 (1,2 + 1,6 = 100%) no guarantee for 50/60/70 years old tubes (for the sound/hum etc.) no discuss/warranty about results of other tube-tester (all tester/countries/voltage is different)!There is no warranty or returns based on what any other tube tester reports. Important to know!EXPRESS SHIPPING: USPS for the US (45 USD) 3-7 working days USPS for Canada (43 USD) 3-8 working days TNT/FedexAsia/Australia (55 USD) 3-7 working daysI offer no low cost shipping! EU and Europe (17 USD) nothing changed 7-14 working days

PHILIPS Miniwatt ECC83 12AX7 Monza I60 code Z0G.Testate e funzionanti. Coppia matched. Gm=1500/1500 0.9/1.1ma Gm=1500/1600 1.1/1.0ma Foto reali dell'oggetto in vendita

1958 Miniwatt Amperex 12AX7 ECC83 Vacuum Tube Super strong and very tightly balanced , very hard to find like this. ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? The measurements provided were made on a Triplett 3444 that has been modified to test tubes in accordance with the original manufacturer’s stated test conditions, including bogey values. This includes the use of cathode bias where specified. This tester was prepared by Paul Hart of Roswell, GA.Further information is available on request. Industry Bogey Transconductance = 1600|1600 µmhos Industry Bogey Plate Current = 1.2|1.2mA Results = 1800/1810 µmhos ~ 1.29/1.33mA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ USA Shipping $6I have many other types of tubes All tubes r Guaranteed ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubesov8

QUAD OF PHILIPS MINIWATT HOLLAND ECC83 12AX7TESTED HICKOK TV-7/UMINIMUM 32/32 ( NOS 49/49 )RESULTS TUBE 1 = 60/60 - CODE I65 ?3A5RESULTS TUBE 2 = 57/58 - CODE I65 ?3G5RESULTS TUBE 3 = 57/61 - CODE I65 ?3J3RESULTS TUBE 4 = 61/59 - CODE I65 ?6H1 SHORT RIBBED GRAY PLATES, RING GETTER MADE IN HEERLEN HOLLAND, 1963/1966 PRODUCTION IN NEW REPRO PHILIPS PAPER BOX

Philips Miniwatt ECC83 Tested good on b&k 707(26,26)where 22,22 IS MINIMUM SOLD 100% GUARANTEED AS PICTURED WE WILL COMBINE SHIPPING ON MULTIPLE ITEM ORDERS.When purchasing multiple items, please let us know before making payment so that we can adjust the shipping amount on the invoice Check out my other items! Please take a look at our other sales for more vintage computer items.IBM Univac & Mark 1, DEC pdp, Mits Altair, The Maniac 1 and much more Please check out our store for many great deals!Our prices are not set in stone. Make an offer on Buy It Now itemsWe strive for a smile when you receive your item. If you feel the need to leave negative/neutral feedback, please contact us first to give us an opportunity to resolve the issue. Please contact us with any issues before opening a return/not as described case. We will resolve the situation more quickly To the very few overseas buyers that ask, we will not undervalue for customs. Sold Guaranteed Please email questions

LOT OF 3 x PHILIPS MINIWATT ECC83 IN BEAUTIFUL CONDITION AND PERFECT WORKING ORDER - TESTED STRONG ??AVO VCM163 TESTED READINGS CAN BE SEEN IN THE PHOTOS 100% = Ia 1.2 gm 1.6 ? PLEASE SEE MY OTHER AUCTIONS ?

Philips Miniwatt Rhre Geprft mit Funke W19

2X USED ECC83 - 12AX7 MINIWATT - D-FOIL GETTER - LONG RIBBED PLATES TESTED Both Same year code Mc5 . Tested with Russian L1-3 Tube tester. Where 110ma is 100% by the Test card. Where 100% is Ia = 1,20mA / 120 on scale Test Condition:Uf = 12,6VUa = 250VUg1 = - 2V Combine shipping is accepted.If you need less or more items of this type, or if you need add some other items, contact us, and we will make special listing for you.Give us the list of items you need, and well do the rest. We have many other vacuum tubes for audio and other, ask us if you need any of them. Items are shipped from EU- Lithuania Post via expedited International tracking. Combine shipping is accepted.If you need less or more items of this type, or if you need add some other items, contact us, and we will make special listing for you.Give us the list of items you need, and well do the rest. We have many other vacuum tubes for audio and other, ask us if you need any of them. Items are shipped from Lithuania Post via expedited International tracking.

PHILIPS Miniwatt ECC83 12AX7 Mullard Blackburn factory code I61. Valvola usata, testata e perfettamente funzionante. Gm=1600/1600 1.1/1.0 Foto reali dell'oggetto in vendita

PAIR OF PHILIPS MINIWATT HOLLAND ECC83 12AX7TESTED HICKOK TV-7/UMINIMUM 32/32 ( NOS 49/49 )RESULTS TUBE 1 = 58/56 - CODE I63 ?3I3RESULTS TUBE 2 = 58/59 - CODE I65 ?4I2 SHORT RIBBED GRAY PLATES, RING GETTER MADE IN HEERLEN HOLLANDTUBE 1 MADE SEPTEMBER 1963 3rd WEEKTUBE 2 MADE SEPTEMBER 1964 2nd WEEK IN NEW REPRO PHILIPS PAPER BOX

PAIR OF PHILIPS MINIWATT HOLLAND ECC83 12AX7TESTED HICKOK TV-7/UMINIMUM 32/32 ( NOS 49/49 )RESULTS TUBE 1 = 60/60 - CODE I63 ?1E5RESULTS TUBE 2 = 61/58 - CODE I65 ?2K2SHORT RIBBED GRAY PLATES, RING GETTER MADE IN HEERLEN HOLLANDTUBE 1 MADE MAY 1961 5th WEEKTUBE 2 MADE NOVEMBER 1962 2nd WEEK IN NEW REPRO PHILIPS PAPER BOX

Philips Miniwatt Holland BLACKBURN 12AX7 ECC83, Tested Strong 7/7 on orange tube tester. Buyer pays all shipping, I do combine on shipping. No Reserve.

PAIR OF PHILIPS MINIWATT HOLLAND ECC83 12AX7TESTED HICKOK TV-7/UMINIMUM 32/32 ( NOS 49/49 )RESULTS TUBE 1 = 60/61 - CODE I65 ?5D1RESULTS TUBE 2 = 63/60 - CODE I65 ?6B4SHORT RIBBED GRAY PLATES, RING GETTER MADE IN HEERLEN HOLLANDTUBE 1 MADE APRIL 1965 1st WEEKTUBE 2 MADE FEBRUARY 1966 4th WEEK IN NEW REPRO PHILIPS PAPER BOX

Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% triode 1 9.9/32 PC 1 triode 2 17.5/32 PC 1.9 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.