[Amps] GS-35B Pi Tank design

[Iain]

Dear Maximo

 

Many thanks for the info

 

73’s Iain G4DPF

 

  _____  

From: Máximo EA1DDO_HK1H [mailto:ea1ddo at hotmail.com] 
Sent: 09 May 2013 15:11
To: Iain; 'David Craig'; Amps at contesting.com
Subject: RE: [Amps] GS-35B Pi Tank design

 

Hi Iain,

Please, check this piece of software called GGridPA
<http://www.qsl.net/u/ur5ffc/soft/ggrid/ggridpa.zip> 
It is very useful.

73, Maximo - M0HAO





> From: iain at g4dpf.co.uk
> To: davidhcraig at verizon.net; Amps at contesting.com
> Date: Thu, 9 May 2013 14:40:56 +0100
> Subject: Re: [Amps] GS-35B Pi Tank design
> 
> Hi Dave
> 
> Many thanks for the link.
> 
> Very useful
> 
> Thanks and 73's Iain
> 
> -----Original Message-----
> From: David Craig [mailto:davidhcraig at verizon.net] 
> Sent: 05 May 2013 06:55
> To: 'Iain'; Amps at contesting.com
> Subject: RE: [Amps] GS-35B Pi Tank design
> 
> GM Iain,
> 
> I've included a link here http://www.nd2x.net/gs35-HF.html but
> seems to me easiest to just calculate the plate load impedance given your
> planned B+ value and tap accordingly per band. Whether its variable or
> fixed on the schematic really doesn't matter if you plan ahead. GL
> 
> 73 Dave N3DB 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Iain
> Sent: Sunday, May 05, 2013 1:13 AM
> To: Amps at contesting.com
> Subject: [Amps] GS-35B Pi Tank design
> 
> Hi 
> 
> Wonder if the group can point me in the right direction ?
> 
> 
> 
> I am building a GS-35B Amplifier for the HF bands and wanted to use a
Fixed
> (tapped) coil in the pi-tank rather than a roller inductor.
> 
> Does anyone know of a published (on the web) design of a GS-35B amp for HF
> with a fixed tapped coil in the output ?
> 
> 
> 
> Thanks in anticipation
> 
> Iain G4DPF
> 
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