(5) JAN 7308 Amperex USA and JAN Philips ECG tubes. Dual triode type tubes. Military contract boxes. Suitable sub for 6DJ8 and 6922 types. Tested on cal’d Hickok 539C tester and checked in a stereo amp for any noise issues.
Min transconductance is: 7000 umhos on the 539C.Amperex USA = Gold pins. NOS/NIB. Manu in 70’s in Hicksville, NY. Philips ECG = Regular steel pins. NOS/NIB. Manu in 1985 in the USA. Tube 1. SOLD! Tube 2. Philips EGC steel pin. Date: 85-39. Green print. $40.00 T1: 13000@24.5ma T2: 12750@22.5ma Tube 3: SOLD! Tube 4. Amperex USA Gold pin. Date: 77-42. Code: VR6/*6H/USA. Orange print. Beat up box.
This could possibly be used as the pins are darker than the other Amperex’s. $40.00 T1: 13000@23.1ma T2: 12500@22.7ma Tube 5. Philips EGC steel pin. Date: 85-39. Green print. $40.00 T1: 13000@26.7ma T2: 12250@20.1ma Tube 6. Philips EGC steel pin. Date: 85-39. Green print. $40.00 T1: 13000@24.5ma T2: 11750@21.1ma Tube 7. Philips EGC steel pin. Date: 85-39. Green print. $40.00 T1: 13000@28.7ma T2: 11750@23.9ma I ship USPS Pri Mail and pack very well. Shipping is straight $10 in USA.
Payment by Check, MO, Cashiers Check or PayPal + fees.
If you have any questions...please ask. Thanks! CW
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