▼ Menu

807

Sensibly equivalent to:
5B/250A ATS25A ATS25 CV124 CV1060 CV1364 CV1374 CV1572 QV05-25 RK39 VT-100 VT60A VT60
See also:
Beam Tetrodes and the 807 - The Williamson Amplifier - CV1060 short entry - An 807 at Atlas Cove
    
Extras ▼

 

The classic 807 beam tetrode, this example is from Emitron.
The parameters given are for single ended use. When used in a class AB1 as a push pull pair with 600 Volts on the anode an output power of 65 Watts was normal.
The high voltages on the anode make ceramic insulators a wise precaution.
One characteristic of most 807's is the curved lower screen. In this example a plain rectangular box screen has been used.
The classic envelope is 50 mm in diameter, and excluding the UX5 base pins is 132 mm tall.
References: Datasheet & 1040. Type 807 was first introduced in 1938.

 

Pin Connections
UX5
1
2
3
4
5
tc
h
g2
g1
k
h
a

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
6.3
0.9
300
250
-14
83
8
20k
6.5
6.7W

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
mAg
Pdriv
Pdiss
Pout
freq
f.max
6.3
0.9
600
250
-45
100
7
3.5
0.2W
25W
40W
60
125
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December10, 2019.
shape:classic construction:pinch type:beam.tetrode age:1930.1940 base:ux5 heater:6.3v pins:5 pin:1.h pin:2.g2 pin:3.g1 pin:4.k pin:5.h pin:tc.a
Return to Main Index