VT20/CV1020/220P

If they glow, this is the place to be
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pre65
Amstrad Tower of Power
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Location: North Essex/Suffolk border.

#1 VT20/CV1020/220P

Post by pre65 »

Hi-is anything known about this power triode with a 2v heater ?

I read somewhere it was powerful enough to work headphones :lol:

Similar,it seems,to the 215P
The only thing necessary for the triumph of evil is for good men to do nothing.

Edmund Burke

G-Popz THE easy listening connoisseur. (Philip)
steve s
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Location: east yorks

#2

Post by steve s »

Hi Phillip, its a cosser valve that was used for the output stages of a battery radio..

150 volts at 11 m/a .2 watts output into 9 k load at 5% distortion
amplification factor is 9 , mu is 2.25

hope thats some use

steve
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pre65
Amstrad Tower of Power
Posts: 21373
Joined: Wed Aug 22, 2007 11:13 pm
Location: North Essex/Suffolk border.

#3

Post by pre65 »

Hi Steve-not much use as an output valve to drive a loudspeaker then !
The only thing necessary for the triumph of evil is for good men to do nothing.

Edmund Burke

G-Popz THE easy listening connoisseur. (Philip)
steve s
Shed dweller
Posts: 2829
Joined: Wed May 30, 2007 6:19 pm
Location: east yorks

#4

Post by steve s »

pre65 wrote:Hi Steve-not much use as an output valve to drive a loudspeaker then !
not as bad as you may think.. about 10 db's less than my 2p amp managed in the corner at witham..

I've been contemplating building with the 1/2 watt Lp2 as the output valve


steve
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