This eBay sale is for One(1) VACUUM TUBE 

Condition: Used but Tested Still Strong with Balanced Plates.

Pulled from Vintage Professional  Commercial / Military Test Equipment.

Our Test Set : Recent 07/24/2023 Dan Nelson Restored, Upgraded & Calibrated 

Mil-Spec TV7D/U Tube Tester with Digital Meter reading Transconductance (Gm)

in uMhos and mA Anode Plate Current emissions. Calibration re-verified 01/06/2024

  & again on 06/03/2024.

Nov. 1960 Amperex Heerlen, Holland ECC88 6DJ8 Bugle Boy Tube 

Physical Characteristics:

- Etched Codes on glass: 'GA' 'Δ0K1'

- Smeared White ink Bugle Boy logo 'Amperex' 'ECC88 / 6DJ8' 'MADE IN HOLLAND'  

- 3 Wafer/Spacers, 2 Mica Spiked Wafers + 1 Solid Metal Spacer with 2 metal supports 

and 1 metal support for the Getter

- Smooth Boxed Gray Plates

- Larger Ringed Halo Getter

- Fat Glass Bottle

TEST RESULTS:

Both tubes tested : NO SHORTS, NO GAS, NO LEAKAGE, NO Apparent Microphonics Detected,

• Tube  ('Δ0H1'):    88.1 / 94.6 = 11,012.5 / 11,825.0 uMhos @ 18.5 / 22.7 mA Anode Plate Current Emissions
• Gm Plates Match at  6.88% 

'Bogey' = NOS Amperex average Factory Vintage New Spec for a 6DJ8 / ECC88  Twin TRIODE = 12,500/12,500 micromhos (Gm) Transconductance( 100/100 TV7 meter reading) at 15.0 /15.0 mA (Anode) Plate Current (+/- 10%) . 

Testing on any TV7 tube tester the  Minimum Good value is 62/62

where 62/62 = 7,750/7,750 Gm . This represents about 62% of tube life

even though most tubes will still perform at 40% tube life such as high-quality vintage Euro tubes

- We will ship this tube in new Amperex tube box as shown in the pics including a printed page 

of this detailed description with test results.

Shipping:

We Pack Well and Ship Fast with many years of shipping FRAGILE Vintage Electronics and Vacuum Tubes

US: -All 50 states:  Low cost USPS  Advantage Ground shipping with Tracking, allow 2-6 days for delivery depending upon your delivery zone, We Ship from South Florida.

International Shipping : Insured with Tracking via Low-Cost eBay (GSP) economy small parcel consolidated Air-Freight Space Available, allow 10-40 days for delivery.  

Please note some Country shipping restrictions currently apply, if your Country is in the Drop-down box under the Shipping Tab then "WE SHIP!".

• Thank you for looking!