[Milsurplus] ATD Transmitter

[Marty Reynolds]

Yo Rian, Meir, Dennis, et al

ATD seems to have link output.  The coupling  'D knob' on each TU.  So
best procedure
is to put a series variable capacitor in line.

Why?  Delete NOW if ARRL Hbk electrical engr. gags ya.

Here's why.  That series cap bucks the LINK's inductive reactance, Xl.   And
that like Xc is frequency-dependent.  So there's no perfect little cap
there to match
50 ohm ham loads.  Length of antenna, direction of toilet whirlpool, bird
seed choice
don't enter.

The "D knob" swinging link acts  like an autoformer tap on the final's
tank coil.  So an xtra transformer (unun? wherzat come from)?)  shudn't be
needed.

Last, 30W out.  That means about 50W input  which takes 6L6s to the limit.
 I'd
be a 30w happy boy  - hubba hubba hubba

   signed

     sr. wet blanket

PS I like 814s & hence the ATD.  One thot is to use an 828 & run the 6L6s
AB2 w.
      two 9V batteries as negative bias.  Then 6L6s might make 50w & Meier
you'll get
      ur 60w

      But be careful to keep basso profundo outa modulation xfrmr sr
pavarotti