The KT88 is similar to CV5220 and 6550 and can be used in the same way.
Hot wire heating
Eto... 6.3 v
IH ... 1.6a
Restrict assessments
---------------- KT94 KT100 KT94 KT100
Anode Voltage: 800, 800, 800, 800, 800 V
Second gate voltage: 600, 600, 600, 600, 600, 600 V
First gate voltage: -200 - 200 - 200 - 200 v
Anode dissipation power... 42, 45, 35, 40 W.
Second Gate Dissipation Power... 8, 8, 6, 6 W
Anodes and second gates are dissolved. 46 49 40 45 w
Negative Current: 9.1 inches (230 cm), 9.1 inches (230 cm), 9.1 inches (230 cm), 9.1 inches (230 cm), 9.1 inches
Hot Wire Cathode Voltage... 200, 200, 250, 250 V
Glass shell temperature... 250, 250, 250, 250 and 250 c
First Gate Resistance
Self-bias
---- PA + PG2 <;35W 0.47 M_
--- PA + PG2> 35W 0.27 M_
Modified Bias
---- PA+PG2 <;35W 0.22 M_
--- PA + PG2> 35W 0.10 M_
Interpole capacity
-----Quadruple connection and three pole connection
Input capacity... 16-- 9.3 pf
Output capacity... 12 - 17 pf
Cross-circuit capacity... 1.2-7.9 pf
Static Parameters
Quad Pole Connection
UA ... 250V
UG2 ... 250V
A .................. 140MA
Ig2 (approx.) 3MA
-UG1 (approx.) ... 15V
gm ... 12ma/v
ri ... 12k Omega
UG1-G2 ...... 8