Description: Philips 12AX7A / ECC83 / 7025 USA Vacuum Tube Tests NOS+ and balanced. Digital TV7A/U Test Results: TESTED at 150VDC Plate Supply VoltsNO SHORTS, NO LEAKAGE, NO Gas, NO Micro phonics Detected Tube 1: Side 1: 70 = 1750 uMhos Transconductance(Gm) at 1.5 mA (Ia =Anode Plate Current) Side 2: 69 = 1725 uMhos Transconductance(Gm) at 1.6 mA (Ia =Anode Plate Current) For Reference: The Minimum good value for a ECC83/12AX7A/7025 tube tested is 800/800 uMhos Gm which is about 65% of life. 'Bogey' Specs: 12AX7-12AX7A/ECC83/7025 (Data sheet graphs by RCA,GE & Tung-Sol). Hickok TV-7' test at 150V max. Testing ( Average factory new ):100VDC Plate Supply Voltage : 1,250/1,250 uMhos Transconductance( Gm) at 0.5/0.5mA(Anode Plate Current emissions)150VDC Plate Supply Voltage : 1,300-1,350 uMhos Transconductance( Gm) at 1.1/1.1mA(Anode Plate Current emissions)200VDC Plate Supply Voltage : 1,400/1,400 uMhos Transconductance( Gm) at 1.2/1.2mA(Anode Plate Current emissions)250VDC Plate Supply Voltage : 1,600/1,600 uMhos Transconductance( Gm) at 1.2/1.2mA(Anode Plate Current emissions) Many years of shipping Experience with fragile Vacuum Tubes and Vintage Electronics.
Price: 45 USD
Location: Rileyville, Virginia
End Time: 2024-11-11T00:22:12.000Z
Shipping Cost: N/A USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: Philips
Type: 7025
Model: 7025
MPN: Does Not Apply
Country/Region of Manufacture: United States
Unit Quantity: 1
