EF80 Zaerix Strong NEW NOS vacuum tubes.

Tube is tested with professional tube Tester L3-3.

Va = 250 V, Vf = 6.3 V, Rc = 75 Ohm, Ia = (7.7 - 14.3) mA.

Warning! Tubes are matched by electrical parameters (Ia), not by year manufacture or producer.

Difference = 0%

    Ia tube 1    Ia tube 2  | pcs

1. 12.4 mA     12.4 mA      2

2. 14.0 mA     14.0 mA      2

3. 15.2 mA     15.2 mA      2

We have these number of measured items in stock.

Please select pair of the list and write to us.

Price is for one matched pair (2 items).

Identical to: EF80 = 6BX6 = Z719 = Z152 = 8D6 = 64SPT = 6P6_Magnadyne = 6F41

Similar Tubes

Normally replaceable-slightly different: 6EL7

Heater different: 12BX6 ; UF80 ; XF80

Other base:  E88F

Differences not known by us: E88FN

The EF80 internally screened pentode was a workhorse of the VHF TV receiver and was introduced in mid 1950 to replace the EF91. It was described by Mullard as: a high slope RF pentode and not a variable μ type. The EF85 was the variable μ counterpart to the EF80.

The EF80 was much used for RF, intermediate frequency, and video amplification.

The thin glass tube envelope is 20 mm diameter and excluding the B9A base pins, is 58 mm tall.

Weight: ~ 15 g



We ship via Ukrposhta delivery service (safe, fast and reliable delivery from Ukraine} delivery time 14-30 days