[Boatanchors] Seeking Transmitter Design Suggestions

[wa9wfa]

Hi Bob (and list), Thanks for your transmitter tube suggestions.  I’ve been to Latta’s page before looking at his 2x6 receiver.  Wow talk about a through discussion of that tube.

Your HP-23 power supply advice sounds great to me.  I was thinking of building an external supply but on second thought I like the idea of the HP-23A/B better.  I don’t have any transmitter building experience so I’d rather not take on a power supply as well.  

BTW, I know you are a big WRL DuoBander 84 fan.  I have one in great shape with the matching power supply that I will be working on this winter. It can be seen on my QRZ.COM page.  What a beauty!

73, Scott WA9WFA


> On Nov 18, 2021, at 2:14 PM, Robert Nickels <ranickels at gmail.com> wrote:
> 
> In case you're wondering why the 6AG7 is so often used/suggested for the osciallator stage, read this:
> 
> https://www.frostburg.edu/personal/latta/ee/6ag7amp/6ag7tube/6ag76ag7tube.html
> 
> The 6CL6 is a miniature version with similar specs.
> 
> And a suggestion - find a Heathkit HP-23 series power supply. Being a voltage doubler type they are nearly bulletbroof in comparison with those using high voltage secondary windings that are apt to fail,  and they will power most any AM/CW or SSB rig you might have.   I like the A or B versions that have the front-panel switch to select 250 or 300VDC for the low voltage, but they all can be wired to either internally.  It's a great universal power supply.
> 
> 73, Bob W9RAN