GT,
Things that I have done with my T-T 1330 kit:
-hand picked a matched set of xtals for the xtal filter for better
selectivity
-added trim pots to aid in setting band edges of VFO
-built in a TicKeyer memory keyer board
-added a CW "read-out" freq counter board
-upgrad to the RCA connectors and added internal fuse to power lead
-built an external amp with cheap power switching FET for about 20 watts
output
The VFO is a pain to adjust but after it is aligned the stability is
good.
Nice sounding receiver with plenty of gain
Good AGC Good QSK
The price is right and and these rigs work great in stock form or there
is plenty of room for mods and improvments too. A fun project. Hope
this helps.
73,
Bill - K6WLM
k7gt@attbi.com wrote:
>
> With the current sale on for TT QRP xcvr kits, I am
> wondering if anyone has done some hotrodding on them.
> The price of $83 is very interesting.
>
> I know that AB7MY has souped up the SW40 and NC40A
> xcvrs to over 5W with some judicious alterations to the
> PA output networks and other such mods. But I have not
> heard much regarding the TT QRP rigs. The same techniques
> could surely be used, but I wonder if this wheel
> has already been invented!
>
> Also I wonder about frequency stability of the TT
> QRP rigs (1340 in particular) in hardcore field use--
> backpacking, etc.
>
> 73 GT
>
> --
> Allan K7GT
>
> Pleasanton CA
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