[Amps] Solid State Amps-v- Tube Amps

[Vic Rosenthal]

I don't know why it would affect harmonic suppression, but it does add inductance to the "parasitic tank circuit" that is formed by the plate lead, blocking cap, and pi input capacitor, which could make VHF parasitics more likely.

Vic 4X6GP 

> On 22 Jun 2017, at 18:13, Jim Thomson <jim.thom at telus.net> wrote:
> 
> ###  JI and I got into it on another forum about the small  coil  b4 the
> main C1 cap.    He claims it will lower the harmonic suppression on 
> the lower bands.    I find that hard to believe.... but I have not measured
> harmonic suppression on the lower bands, when the small coil is installed
> on the higher bands, like 10 or 15m.  Harmonic suppression is not high on my list.