[AMRadio] W2JAV RTTY TU for use with my model 15 TTY

[John Dilks, K2TQN]

At 12:19 PM 3/3/2011, Ted Gustafson wrote:
>If that is the case you will need to go find a Model 19, build yourself a
>real TU with tubes in it (no solid state filtering as that would be evil
>new-tech stuff)

No, not exactly Ted.

I first built a W2JAV tube TU for use with my model 15 TTY.  Not long 
after I got a PC board and some used RCA transistors and built the 
W2JAV Solid State TU, which worked very good.  It used 88mh toroids 
found in some old telephone line equipment.

After I was called to active duty (who wasn't back then?) I was 
stationed at the Langley AFB MARS station.  There was a great junk 
yard nearby that I used to frequent and find electronic scrap for 
5-cents a pound. (great Saturday fun).  One day there they had about 
6 of the telephone line-loading pots lying in the pile.  Each 
contained 450 88mh toroids in sets of 5, but no one else that 
Saturday knew that.  I bought all 6 pots and took them home and cut 
the top off each pot and extracted the toroids.  I sold them @ 5 for 
$1 (or maybe $1.25?) post paid and really made some money.  Good for 
the 60's.  Stamps cost 13-cents each (or $.25?) to mail them as I 
recall.  they jut fit into a bank money envelope which I picked up at 
the base bank.  I sold them with a classified ad in the RTTY Journal 
from Royal Oak, MI.  (Great publication, I still have a few of them 
around, RTTY Journals, not toroids. Hoarding is good if you are a ham.)

I used them on 2m AM and on HF with my BC-610-I (I wish I still had 
the radios, but not the model 15 though.)  I ended up with a quiet 
model 28 ASR before I quit RTTY.

73, John Dilks, K2TQN