Photo of KK6HY radio shack in 2010

PHOTO ABOVE: KK6HY radio shack (2007-2011) featuring TMC units.

LOCATION: Northern California
BROADCAST LICENSE: First-Class RadioTelephone

Over a period of ten years, I restored a 1963 500-Watt TMC transmitter (Technical Materiel Corporation, Mamaroneck, New York). It included a GPE-1A AM exciter, a PAL-500 linear amplifier, and an ATS-2 SWR monitor/controller with its remote tuner mounted at the base of a 31-foot vertical antenna. This AM transmitter operated fixed-frequency with three crystals. The SBE-2 needed a power supply, so I lacked a VFO and SSB.

Because of my age and space issues and because of wanting to explore other aspects of this great hobby, I sadly replaced the wonderful TMC system with a FLEX-3000 SDR transceiver and an Elecraft KPA500 linear amplifier (500 Watts, PEP).

Other major components include an original Gates "The Yard," a 1955 audio console beautifully restored by KO6NM, Mike Dorrough, a US Navy ME-165/G power monitor with 600-Watt dummy load (1971), a TMC SWR/Wattmeter (1963), an Electro-Voice 635 microphone (1948), and two antennas: a 123-foot dipole and a 31-foot S9v vertical antenna.

The FLEX is the primary receiver with its great panadapter. A pair of large Bertagni recording studio speakers are ceiling mounted at 45-degrees for critical listening, especially AM. Special receivers include a Stoddart NM-26T (c.1974, 150kHz to 32MHz), a CEI/ Watkins-Johnson Model 901-1 receiver (c.1963, 30MHz to 1GHz), a CEI/ Watkins-Johnson Model 112R-8 receiver (c.1968, 1GHz to 12GHz) and an Ailtech/Stoddart NM-67 receiver (c.1977, 1GHz to 18GHz).

Other restorations include two National receivers as shown: a 1952 AN/FRR-24 (RF & 1st IF module only of this incredible 3121-pound, 420-tube receiver) and a 1963 R-1230/FLR countermeasures receiver (National's last vacuum-tube receiver).

AM is the preferred operating mode. Favorite frequencies: 3870, 3880, 3885, and 7293 kHz (Western States AM groups) or 14.263 MHz (Collins radio group) Sunday afternoons! For the Collins CCA Net, I am repairing a Collins KWM-2 transceiver.

Photo of KK6HY radio shack
PHOTO ABOVE: KK6HY radio shack simplified block diagram: 2014.
Photo of KK6HY radio shack
PHOTO ABOVE: KK6HY radio shack: 2015.


Photo of 1951 desk and crystal set
---First radio project in 1951---

Photo of IP-500 receiver
U.S. Navy IP-500 wireless radio receiver

Photo of Stoddart NM-67 SHF receiver
Stoddart/AILTECH SHF receiver, Model NM-67

CEI 901-1 radio receiver
1963 CEI VHF surveillance receiver, Model 901-1

WJ 112R-8 radio receiver
1968 WJ SHF surveillance receiver, Model 112R-8

National Radio Co. logo
Photo of National AN/FRR-24 receiver
1952 National Radio AN/FRR-24 military receiver

National Radio Co. logo
R-1490/GRR-17 receiver
1967 National Radio R-1490/GRR-17 military receiver

National Radio Co. logo
Photo of National R-1230/FLR receiver
1963 National Radio R-1230/FLR military receiver

Tecraft CC-108
First Ham Satellite Receiver: 1958

Photo of Stoddart NM-40A Radio
1956 NM-40A Stoddart ELF/VLF Receiver

Photo of GR Model 1931-A
GR Amplitude-Modulation Monitor 1931-A
GR Distortion and Noise Meter 1932-A

Photo of TMC transmitter
500-Watt AM TMC rig

Photo of AN/FRW-3
Collins UHF receiver, Model AN/FRW-3

Photo of RBY-1 & BC-1031
Hallicrafters RBY-1 (SX-28) with BC-1031

Photo of TRC-77 rig
10-Watt CW TRC-77 rig

Photo of AN/FRR-26 receiver
AN/FRR-26 HF receiver, Kaar of Palo Alto

Photo of Holmes C. Miller Radio
1930 HF receiver, H. C. Miller of Palo Alto

AN/UNH 17B cassette recorder
1979 AN/UNH-17B Recorder-Reproducer Set

Telephonics mystery transmitter
Mystery HF transmitter: Telephonics, US Navy, No model #

Sylvania mystery HF receiver
Mystery HF Receiver: Sylvania Reconnaissance Systems Lab. prototype

RBF-1 sono boue receiver
RBF-1 sono buoy receiver

RBF-1 sono boue receiver
TELEFLASH wired radio system

VLF Signal Simulator
VLF Signal Simulator


W6AMI, Western AM Club
Al "Jazzbo" Collins The Cinnamon Bear Radio Series Jean Shepherd
Kukla, Fran and Ollie Two Ton Baker Home Page Walter Winchell's Telegraph
WFMT, Chicago's Fine Arts Station ARRL: American Radio Relay League W3XK -- America's First TV Station
ARC: Antique Radio Classified AWA: Antique Wireless Association CHRS: California Historical Radio Society
Museum of Broadcast Communications, Chicago CCA: Collins Collectors Association MIT List of Internet Radio Stations
MZTV Museum of Television PAARA: Palo Alto Amateur Radio Association Stoddart Radio Company History
NU9N AM & ESSB Hi-Fi audio K6GLH, Gary Halverson's videos K4NYW Ham Radio Page
San Francisco Bay Area Television Archive Cipher Machines Bay Area Radio Museum
LWCA (World Below 500 kHz) K4OZY TMC History & Info Radio Waves below 22 kHz
Maritime Radio Historical Society DUBUS VHF+ magazine W6THW, Penryn, California
Vintage VLF receivers list History of VU meters by Mike Dorrough

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