[Amps] COLLINS 30L-1 TUNING VARIABLE CAPACITOR ALIGNMENT

[Vic Rosenthal]

Fully meshed. Lower frequency = more capacitance.

Vic 4X6GP

> On 16 Jan 2017, at 00:37, Emile Venter <aod at mweb.co.za> wrote:
> 
> Hi
> 
> 
> 
> I recently stripped my Collins 30L-1 for some basic maintenance and
> cleaning.
> 
> 
> 
> I was stupid enough to remove both of the adjustment knobs on the tuning
> capacitors without taking note of the position of the variable capacitor
> vanes.
> 
> 
> 
> It's obviously very easy to line up the adjustment knob for the loading
> capacitor seeing as the capacitor has a stop at the minimum and maximum
> positions.
> 
> 
> 
> However, the tuning capacitor does not have any stops.
> 
> 
> 
> My question is this: when refitting the adjustment knob on the tuning
> variable capacitor, where must the variable capacitor vanes be placed?  Are
> the vanes fully meshed or completely unmeshed at the lowest frequency tuning
> position (fully counter clockwise)?
> 
> 
> 
> The loading variable capacitor is fully meshed at its minimum setting (fully
> counter clockwise).
> 
> 
> 
> I realize now that I should have paid closer attention to this before diving
> in and disassembling the amplifier.  I assumed that this information would
> be in the service manual, but it is not.
> 
> 
> 
> Regards
> 
> 
> 
> Emile
> 
> ZS6V
> 
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