Somebody asked a while back abt the need for parasitic suppressors' on a GG-
813 amp. A buddy
had one blow up on his 2 x 813 amp last yr.. across town. he tossed both the
blown one.. and also
the remaining one. Amp runs just fine with NO suppressors. Another fellow
runs a 4 x 813 amp,
again with no suppressors. The tubes all balance out too..equal glow. I'd
try it with it with no suppressors
1st.... then if you do have stability problems.. then add them.
If the screen and control grids are well grnded [via strap] to chassis... you
won't have stability problems.
I have had 813's with as high as 3 kv on em, no load... yrs ago, with no
stability problems, but that amp
did have suppressors in it [2 x 813's in GG] [80-10m]. That was back in
1975. It's a pretty stable tube.
Later... Jim VE7RF
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