▼ Menu

6AQ5A

Sensibly equivalent to:
6669 6HG5
    
Extras ▼

 

The 6AQ5A is a small audio output beam tetrode valve capable of 4.5 Watts in a single ended configuration. The A variant indicates a controlled warm-up time.
The heater at 450 mA would be suitable for use in American series heater chain equipment. The controlled warm-up would bring up the audio output last.
The sylvania logo printed on the glass. The inner construction is hidden by the anode.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 59 mm long.
References: Data-sheet & 1040. Type 6AQ5A was first introduced in 1958.

 

Pin Connections
B7G
1
2
3
4
5
6
7
g1
k,bp
h
h
a
g2
g1

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
ra
rk
rl
gm
Pout
6.3
0.45
250
250
-12.5
45
52,000
240
5,000
4.1
4.5W
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 16, 2021.
Return to Main Index