[Amps] HB amps

[Mike Bondarev]

Hi Gary!

> A pair of 813's will easily produce 600 watts output and do it for years and
> years. They are very rugged tubes. I have an amp with a pair of them that I
> built in the mid 60's and it still has the same pair of tubes. At one time I
> ran them with over 3000 volts on the plates for several years with the
> plates regularly showing color and power out well above 600 watts.
> The same tubes now run at around 2500 volts and still put out 600 watts and
> no color.

> Not the best tube in the world but for the price and as rugged as they are
> they are hard to beat.
> They will perform well on a wide range of voltages too. 2000 to 3000 volts.

> 73
> Gary  K4FMX


Is it GG or GC ?

Regards, Mike RL3BM