"The 843 has very similar parameters to the 801. The amplification factor is 7.7 (versus the mu of 8 of the 801) the plate resistance is 4800 Ohms (4600 for the 801). With a max. plate dissipation of 12W it is actually closer to the 10Y than the 801A."
Square getter, black plate!
Great tubes for linestage or a small SE amplifier!
Tested on RoeTest V10 (the best modern tube tester!) --see detailed images for measurements
PRICE IS FOR TWO TUBES (ONE PAIR).
I will pack and secure tubes good.
Replacement black boxes!
Feel free to contact me.