[Boatanchors] 812 vs 811 Transmitting Tubes

GGLL nagato at arnet.com.ar
Wed May 28 11:45:16 EDT 2008


	Yes, nearly identical, except 812 types are low mu (29)triodes, whilst 
811 types are high mu (160) triodes.
	812 are best suited for class C operation, while 811's are best for 
linear amplifiers (RF or audio).

Reagrds
Guillermo - LU8EYW.

David Hollander escribió:
> Looking at the data sheets, the 811 and 812 look to be nearly identical.
> 
> Can you replace 811's with 812's in an amp such as a 30L-1 or any other 
> amps that use 811's?
> 
> Any comments?
> 
> 73 es Tnx,
> 
> Dave N7RK
> 


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