> Any dowside risk to gutting the grid cap/choke circuit in the L-7 and
> replacing them it Cu straps between the grid terminals of the socket
> and chassis? Will this affect the termination impedance that the tuned
> input sees significantly?
There are always risks when we change things in marginally stable
systems unless you just buckle down and do everything correctly.
If I owned a 30L1 I'd use "cathode" bias and ground the grids
normally, and add neutralization. I'd never use four 811A tubes in
parallel without cancelling feedthrough capacitance.
73, Tom W8JI
W8JI@contesting.com
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