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MARCONI DA30 PX25A AVO TESTED

End: 20.04. 2024 07:12:11 on Saturday
  • Condition: Used
  • Price: 800.0 EUR FESTPREIS
  • Status: unsold
  • Item number: 296371606254
  • Seller: aquamarine88 (89|100.0%)
  • Seller information: non commercial
  • Item location: Ireland Island
  • Ships to: Worldwide
  • Shipping: 20,0 EUR
  • on EBAY
  • Description

    MARCONI DA30 PX25A AVO TESTEDMarconi DA30/PX25A Legendary. Balloon shape. 1938. MADE AND PATENTED IN ENGLAND Black welded plates. Upturned pan getter. Black base. Tests strong on AVO tester. Ia: 68 Gm: 4.3 Repurposed Marconi packaging box. Shipping: Tracked international shipping. Any questions, please ask. I combine postage. No shipping to Russia or Vietnam

ONE scarce NIB Marconi DA30 (PX25A) power tube PERFECT

End: 09.09. 2023 12:20:23 on Saturday
  • Condition: New: Other
  • Price: 691.45 EUR FESTPREIS
  • Status: unsold
  • Item number: 285455867686
  • Seller: zz2105 (786|100.0%)
  • Seller information: non commercial
  • Item location: Altendorf Schweiz
  • Ships to: Worldwide
  • Shipping: 22,1 EUR
  • on EBAY
  • Description

    ONE genuine NIB Marconi DA30 triode tube U.K. made scarce power tube. NOS-testing tube, no gas, shorts, no rattles, firm sockets. Double-cup getters, getter flash excellent. On a friends Amplitrex AT1000 tested: At 500v anode, -150v bias: Gm- 3190 µmohs, Ip= 59.0 mA (Marconis spec: - 30 mA). You only buy what you see in pics. Please note that other tube testers might give different test results. I dont guarantee at all that this tube will test at SAME value as on my friends Amplitex AT1000 tester. Dont bid if you disagree with my statement!

Marconi DA30 / PX25 Triode Valve Amplifier Vintage Woden

End: 11.07. 2023 16:49:39 on Tuesday
  • Condition: For parts or not working
  • Price: 1516.59 EUR FESTPREIS
  • Status: sold
  • Item number: 166222414108
  • Seller: 23-dave (1959|100.0%)
  • Seller information: non commercial
  • Item location: Worthing Großbritannien
  • Ships to: GB
  • Shipping: 90,12 EUR
  • on EBAY
  • Description

    Marconi DA30 / PX25 Triode Valve Amplifier Vintage Woden As found , untested but looks to be in good condition . All valves untested. I will package very well as always.Please see photos for detail Please ask any questions Before buying Postage within UK Via DPD or Parcel force 48 and overseas by GSP Ebay Global shipping program.

Marconi DA30 audio tube valve balloon shape early 1940s type

End: 24.06. 2023 13:10:01 on Saturday
  • Condition: Used
  • Price: 207.52 EUR Auktion
  • Status: sold
  • Item number: 285335876326
  • Bids: 9
  • Seller: vintagedad (281|100.0%)
  • Seller information: non commercial
  • Item location: London Großbritannien
  • Ships to: Worldwide
  • Shipping: 10,0 EUR
  • on EBAY
  • Description

    This auction is for a rare balloon audio tube type DA30 (same shape of PX25) made by the MO-V Marconi. Military version, good looking tube.This DA30 is in working order and has two filaments glowing out of four, please check pictures.However it has been tested at 60mA with mA/V of 3 grid -65, still a good tube. Immediate payment required for this item! This is due to time-wasters who refuse to pay. If payment is not received within 24 hours I will sell it to second highest bidder without any further warning! Thanks Happy biddingI ship worldwide.UK GBP 8; Europe GBP 16; Asia: Hong Kong Taiwan China South Korea Japan GBP 20 USA GBP 20

1 NIB NOS Marconi GEC Osram DA30 DA-30 tube Double Cup Getter dual tested strong

End: 09.06. 2023 20:02:50 on Friday
  • Condition: New: Other
  • Price: 593.61 EUR FESTPREIS
  • Status: sold
  • Item number: 145080720481
  • Seller: vintage-electric (1577|100.0%)
  • Seller information: non commercial
  • Item location: Orinda, California USA
  • Ships to: Worldwide
  • Shipping: 23,4 EUR
  • on EBAY
  • Description

    1 Marconi DA30 triode tube Made in the U.K. and of vintage production. Excellent, NOS-testing tube. Strong Gm and Ip; meets new-spec. Free from gas or shorts. Listened in circuit- quiet with no noise or microphonics. Clean glass & pins. Hanging filaments. Bottom, cup-getters. Tight base w/ no cracks. Excellent gettering. No large chunks inside. Tested at real operating voltages on an Amplitrex AT1000 at two operating points. Tube operated 10 min ea. before tests to ensure stability. AT1000 test results: At 300v anode, -75v bias- Gm- 4250 µmohs, Ip= 81.6 mA. Spec from Marconi- 45 mA. At 500v anode, -150v bias- Gm- 3190 µmohs, Ip= 59.0 mA. Spec from Marconi- 30 mA. In conclusion- This tests as an excellent, NOS tube. An excellent addition to anyones collection. Money back guarantee you will not be disappointed. All items are 100% guaranteed to arrive as represented for 30 days upon arrival. We offer a full refund if you are not satisfied. Weve been selling vintage electronics since 1999 with perfect ebay feedback and many happy, satisfied customers. All items professionally packed to arrive safely with no extra handling costs. Our mission is to offer quality-tested tubes to make you happy with your purchase. Terms & Conditions: Payment must be received within 3 days of sale date. Items described to the best of my ability. Shipped by U.S. Priority Mail. If you have questions, please contact me BEFORE purchasing. Thank you!

Marconi DA30 audio tube valve balloon shape early 1940s type

End: 26.05. 2023 12:52:05 on Friday
  • Condition: Used
  • Price: 194.3 EUR Auktion
  • Status: sold
  • Item number: 285292741860
  • Bids: 13
  • Seller: vintagedad (273|100.0%)
  • Seller information: non commercial
  • Item location: London Großbritannien
  • Ships to: Worldwide
  • Shipping: 23,04 EUR
  • on EBAY
  • Description

    This auction is for a rare balloon audio tube type DA30 (same shape of PX25) made by the MO-V Marconi. Military version, good looking tube.This DA30 is in working order and has two filaments glowing out of four, please check pictures.However it has been tested at 60mA with mA/V of 3 grid -65, still a good tube Happy biddingI ship worldwide.UK GBP 8; Europe GBP 16; Asia: Hong Kong Taiwan China South Korea Japan GBP 20 USA GBP 20

RARE MARCONI DA30 NR56 OUTPUT TRIODE - AVO TESTED STRONG 1948

End: 23.06. 2019 21:22:21 on Sunday
  • Condition: New: Other
  • Price: 218.68 EUR Auktion
  • Status: sold
  • Item number: 153528987352
  • Counter: 131
  • Bids: 24
  • Seller: alibossa (3465|100.0%)
  • Seller information: Commercial
  • Item location: North Queensferry , Fife Großbritannien
  • Ships to: Worldwide
  • Shipping: 4,5 EUR
  • on EBAY

Pair Marconi DA30 Balloon Triode Valves Tubes

End: 03.05. 2019 21:15:48 on Friday
  • Condition: Used
  • Price: 1151.61 EUR Auktion
  • Status: sold
  • Item number: 254212187929
  • Counter: 349
  • Bids: 30
  • Seller: ian2800 (3447|100.0%)
  • Seller information: Commercial
  • Item location: Stoke-on-Trent Großbritannien
  • Ships to: Worldwide
  • Shipping: 9,95 EUR
  • on EBAY

DA30 Marconi Test very Good Valve Tube Used Old Stock 1 pc

End: 13.04. 2018 14:46:56 on Friday
  • Condition: Used
  • Price: 603.79 EUR Auktion
  • Status: sold
  • Item number: 392014459327
  • Counter: 194
  • Bids: 29
  • Seller: jmg744 (23043|99.8%)
  • Seller information: Commercial
  • Item location: Billingshurst Großbritannien
  • Ships to: Worldwide
  • Shipping: 12,0 EUR
  • on EBAY

NOS MINT Boxed Marconi DA30 Valve Tube

End: 15.05. 2015 15:38:44 on Friday
  • Condition: New: Other
  • Price: 421.27 EUR FESTPREIS
  • Status: sold
  • Item number: 251957399951
  • Counter: 60
  • Seller: ian2800 (2993|100.0%)
  • Seller information: Commercial
  • Item location: Stoke-on-Trent Großbritannien
  • Ships to: Worldwide
  • Shipping: 26,44 EUR
  • on EBAY

One rare Marconi high power directly heated triode output valve type DA30

End: 14.03. 2015 00:00:00 on Saturday
  • Condition: Used
  • Price: 104.84 EUR Auktion
  • Status: sold
  • Item number: 111612588873
  • Counter: 93
  • Bids: 6
  • Seller: keole (17|100.0%)
  • Seller information: non commercial
  • Item location: Uttoxeter Großbritannien
  • Ships to: GB
  • Shipping: 2,8 EUR
  • on EBAY

MARCONI-OSRAM DA30 VINTAGE VALVE UNUSED?

End: 18.11. 2014 16:07:44 on Tuesday
  • Condition: Used
  • Price: 410.81 EUR Auktion
  • Status: sold
  • Item number: 191406078968
  • Counter: 143
  • Bids: 16
  • Seller: basari57 (3515|100.0%)
  • Seller information: Commercial
  • Item location: CHIPPENHAM, Wiltshire Großbritannien
  • Ships to: Worldwide
  • Shipping: EUR
  • on EBAY

NEW Marconi Oscram Valve Co GEC DA30 power triode tube

End: 21.09. 2014 22:20:25 on Sunday
  • Condition: New: Other
  • Price: 419.19 EUR Auktion
  • Status: sold
  • Item number: 261590786411
  • Counter: 99
  • Bids: 12
  • Seller: hb_s (2823|100.0%)
  • Seller information: non commercial
  • Item location: Wigan Großbritannien
  • Ships to: Worldwide
  • Shipping: 18,75 EUR
  • on EBAY

2x (pair!) TESLA RD27 (=Marconi PX25, DA30, DET5, DO24) Triodes, Tested, Nice!

End: 13.12. 2013 14:07:20 on Friday
  • Condition: New: Other
  • Price: 364.77 EUR FESTPREIS
  • Status: sold
  • Item number: 331072709386
  • Counter: 140
  • Seller: cpt.luke (615|100.0%)
  • Seller information: non commercial
  • Item location: Prague, Vinohrady Tschechische Republik
  • Ships to: Worldwide
  • Shipping: 12,36 EUR
  • on EBAY

2x TESLA RD27 (= PX25, VR40, DA30), D-Getters, Vintage lk. Marconi, Osram, GEC!

End: 12.01. 2013 10:19:42 on Saturday
  • Condition:
  • Price: 549,99 USD FESTPREIS
  • Status: sold
  • Item number: 330856887114
  • Seller: cpt.luke (476|10000%)
  • Seller information: non commercial
  • Item location: Prague, Vinohrady Tschechische Republik
  • Ships to: Weltweit
  • Shipping: 18 USD
  • on EBAY

2x TESLA RD27 (= PX25, VR40, DA30), D-Getters, Vintage lk. Marconi, Osram, GEC!

End: 30.12. 2012 03:55:29 on Sunday
  • Condition:
  • Price: 414.12 EUR FESTPREIS
  • Status: sold
  • Item number: 330835184492
  • Counter: 191
  • Seller: cpt.luke (477|100.0%)
  • Seller information: non commercial
  • Item location: Prague, Vinohrady Tschechische Republik
  • Ships to: Worldwide
  • Shipping: 18 EUR
  • on EBAY