K9STH
k9sth@sbcglobal.net
To view item please click on title
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History of K9STH:
Photographs of Antennas;
Current Shack Photographs
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Photographs of older shacks:
More older shack photographs:
New restorations and acquisitions:
More recent restorations:
BC-312M rebuild:
BC-1004 rebuild:
QSL Cards older and current:
Photographs of receiving converter collection:
Converter collection:
Photographs of some of the antique radios
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Antique Radio Collection:
Articles
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Collins S-Line / KWM-2 ceramic trimmer repair:
FCC Telephone Interference Study:
6146 Family of tubes:
RCA tube advertisements
Apache audio modification
Schematic
Mohawk 12 meter conversion
Who invented radio
Off the shelf paint for Heathkit:
Boat Anchor Paint Formulas
Velcro cable wraps
Heathkit DX-100 official modification and other service information:
Heathkit SB-Line LMO rebuild:
Collins KWM-2- series tube socket voltage / resistance charts:
Grounding Articles
Lightning protection
Radio Frequency Grounding
Diagram 1
Diagram 2
Misc. Articles:
Remember when (nostalgia)
More Remember When (nostalgia)
Using television baluns to improve receiver sensitivity
Vertical dipole / rotatable dipole for 6 and 10 meters
Home Brew coaxial switch for 160 through 10 meters
Photographs of switch construction
The Great Tavern Caper (humor)
A dB is a dB is a dB (educational)
Olde Tyme QSL artwork
(Right Click on photograph and download to your computer)
Walter Ashe Card instructions
Walter Ashe style card (new artwork)
Walter Ashe card (scan of actual card)
WRL "My QTH" Card (with instructions)
General Electric "From the Log Of" cards
Blue
Orange
Orange - Light Green
Orange - Gray
Green
Johnson QSL Cards
Front of Card
Back of Card
Collins Radio Employee Cards
1950s Card
1960s Card
Gonset Employee Card
1960s Card
Russian Tube Amplifier Projects
160-meter pair GI-7bT amplifier:
All Band GS-31b amplifier:
75A-1 cabinet and speaker:
160-meter transverter:
More articles of interest will be added from time to time.
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