Zenith Transoceanics
Zenith Transoceanic Clones
Miscellaneous Transmitters, etc.
rare El-tronics AE-30 transmitter/ exciter
Johnson Viking I Transmitter
Homebrew HF dual 6146 Transmitter
HomeBrew 6 meter Transmitter
Two Homebrew 6SN7 QRP Transmitters
Eico 720
Eico 730 modulator/ driver
for the Eico 720 transmitter
Meissner Signal Shifter EX
Globe Scout 680A
old homebrew amp with two 813
tubes and new junk-parts power supply
Adcom LSA-3 RF amp power supply
Barker and Williamson model
BW-5100
Regenerative Receivers
Regenerative receiver identified. Three tube
Burstein-Applebee (but also Archer "Globe Patrol")
Heathkit GR-81
MacKay Radio and Telegraph
type 128 AW
with several stories of shipboard use well into the
1990's.
Knight Ocean Hopper
Knight Space Spanner
Knight Span Master
Transistorized "Science Fair" Globe Patrol
by Radio Shack
Cute little one-tube breadboard kit.
Can you identify it?
Building an early 1930's-style 2 tube Regenerative Receiver
Simple early 1950's homebrew regenerative receiver performs well
Links to homebrew regenerative radio info
and other useful stuff from Ken W7EKB's Glowbugs. Audio equipment
Acoustic Research AR-2ax speakers
Aireon JukeBox audio amplifier
from the late 1940's.
Altec-Lansing A-323B audio amplifier
Altec Lansing A-324A audio amplifier
Three Push-pull 6V6 amps
Ampex A-692, Bogen DB-110,
Homebrew version of Arkay A-12,
Cenco audio amp and speaker
from Central Scientific
Dukane 1A475B "High Power" Audio Amp
Eico HF-12 Audio amp and HFT-90 FM tuner
12 watts RMS with matching tuner
Eico HF-87 stereo power amplifier
35 watts per channel
Fisher KM-60 FM tuner
"StrataKit"
Fisher TA600 receiver
22 tubes, 40 watts of heavy Hi-Fi from 1959
Grommes 260A circuit
in a homebrew audio amp
Heathkit S-2 Electronic Switch Re-purposd as an Audio Preamp
HH Scott 340 "Stereomaster" tuner-amplifier
Magnavox 1947 console
Two-chassis, 15 tubes, great sound.
Magnecord PT6-J audio amp
Meissner AM-FM tuner model 9-1091C
Motorola HS-701 audio amp
as found in a Motorola HK-33M speaker cabinet
Mullard-circuit ultralinear
HomeBrew audio amp
Stromberg-Carlson stereo components
in SP-965-C "Integrity Series" cabinet
Zenith 1948 radio-phono console
has dual FM bands and two tone arms.
Code Practice Oscillators (tube type)
Bud model CPO-120 code oscillator from 1939
two Bud Codemasters, model CPO-128A and CPO-128B
early (1957) Ameco CPS Code Practice Oscillator
later (safer) Ameco CPS Code Practice Oscillator
Hewlett-Packard test equipment
HP-200A audio oscillator Hewlett-Packard's first product
HP-200AB audio generator
Early HP-200C audio generator
HP-200CD audio generator
HP-201CR rack mount audio generator
HP-312A Selective Voltmeter
doubles as a radio
HP-400A AC VTVMeter
HP-400C AC VTVMeter
and here's another HP-400C AC VTVM
HP-400D AC VTVMeter
HP-400H AC VTVMeter
HP-410B VTVM, portable version
HP-410BR VTVM, rack-mount version
Home-Study course radios and chassis
Analyzing a VOM-tester
from Sprayberry Academy of Radio
Meissner 10-1106 Broadcast TRF receiver kit
as used by Sprayberry Academy of Radio
Meissner 9-1085 and Sprayberry-logo model 10-1199 Broadcast/SW radios
National Schools Broadcast/SW radio kit
with schematic and pictorial
National Radio Institute (NRI) AM radio
Lessons to be learned while building an AM radio
Progressive Radio Edu-Kit
Not really home-study but an interesting way to learn electronics at home
Mystery RF-AF Oscillator Chassis
Has been identified - RCA Institutes
Unknown audio amp chassis is identified.
It's from the Radio-Television Training Association
United Electronics Laboratories AM radio kit
and related lesson
United Electronics Institute Scope kit
Interesting stuff
"Ground Fault Protection and the AC-DC Radio"
article as published in the December 2013 issue of "Monitoring Times" magazine
"Fun With Signal Generators"
article as published in the July 2013 issue of "Monitoring Times" magazine
Lifetime carbon microphone
Russian antenna current meter.
Remco Radiocraft toy radio
Did you have fun with one of these?
Homebrew Galena Crystal Set
A 1920s experience.
Knight-Kit "Trans-Midge" one transistor radio
Canadian GE model KL-70 radio
designed for 25 cycle "Hydro" power
Motorola Chairside auto radio
from World War II
Erres KY524 European radio
Philips BX-490A radio
with love story
Philips Model 436-AN radio
was "Made in USA"
Info needed
Nordmende-Sterling Tannhauser
European table top radio with 11 tubes and 6 speakers.
Motorola 9660B Conelrad monitor
and info on the use of CONELRAD
Kaar Conalert II
Conelrad monitor
The "Ugly MacGyver" 6 meter J-pole
emergency antenna
Cute little one-tube breadboard kit.
Can you identify it?
Knight-Kit Wireless Broadcaster
Did you have fun with one of these
as a kid?
1950's Homebrew ham-bands receiver
Help identify it and check out the craftsmanship.
Measurements Model 59 grid dip meter
Ferris 22D "Microvolter" signal generator
Tube-in-the-probe Signal Tracers
Philco 7030 and Feiler TS-3A
Signal Tracers with crystal diode probes
Heath, Knight, PACO, Eico, Lafayette
Tube-era capacitor analyzers part 1 - Sprague Tel-Ohmike TO-16, TO-4, TO-5, Semcor RC-115
Tube-era capacitor analyzers part 2 - Knight, Lafayette, Eico, Heathkit
Heathkit IM-13 VTVM meets other VTVMs
Modifying a Robinair Volt-Wattmeter
for a lower wattage scale
UEI Scope meets Radio Shack TK-100 signal generator
(two test equipment kits)
Stand-alone power supplies
Kepco 605 High Voltage Regulated Power Supply
Oregon Electronics A3A Regulated High Voltage Power Supply
High power low voltage homebrew variable DC supply from recycled parts
Putting the Power back into the Pyramid
PS-20KX power supply
And another Pyramid
Phase III PS-25 variable power supply
Astron VS-35M Variable DC Power Supply
gets an upgraded MOSFET over-voltage circuit
Signal Generators serve as AM broadcasters
Supreme Model 570 Signal Generator as a simple "broadcaster"
Eico 324 Signal Generator as a simple "broadcaster"
Heathkit SG-8 and IG-42 and military URM-25 Signal Generators serve as "broadcasters"
Superior Instruments Genometer TV-50
completely repurposed as a frequency-agile AM modulator / broadcaster
Test equipment that is its own radio
Rider Chanalyst plays music
and here's another Chanalyst
and here's a third Chanalyst
Great old service instruments that are their own TRF radios.
Meissner Analyst 9-1040
The nice Meissner version of the Rider Chanalyst
NRI Professional Signal Tracer Model 33
A complete TRF radio in a piece of test gear.
Conar Model 230 Signal Tracer
Another complete TRF radio.
Supreme Audolyzer
And another complete TRF radio
Sierra Frequency Selective Voltmeter model 126B
listens to AM broadcast
Hewlett Packard 312A Selective Voltmeter
doubles as a radio
Download FREE manuals, schematics, pdf books and reference sources
Schematics and manuals for many BA models
BAMA's Mirror Site
faster Boatanchor Manual download - look here first for manuals
Nostalgia Air has most of the Rider's Perpetual Troubleshooters Manuals (for old radio schematics) on-line
as well as lots of other info.
Here's a direct link to Nostalgia Air's test equipment manuals
lots of Hallicrafters manuals
from John K4OZY
Hewlett Packard manuals, catalogs, and other good info
from the HP Archive site
European radio schematics
Excellent French source for on-line European entertainment radio schematics
lots more manuals and schematics
from mods.dk -- This is a free membership site based in Denmark asking you to log in first. Worth the effort.
List of links to more free manual and schematic sites
originally from Ken K4XL at BAMA but now via the "Wayback Machine".
Military schematics and manuals
Download lots of
military manuals
for R-390, R390A, BC-348, BC-312, BC-779, BC-794, R-129, BC-1004, mil transoceanic and a variety
of others. A great resource from KG7BZ - now moved to BAMA.
the complete ARC-5 manual
and other military surplus manuals and articles in PDF format from W7EKB
Surplus Conversion Manuals; Volumes 1, 2 and 3
are available from W7EKB's glowbug site.
Download R-390A and related military manuals
and information
Military tube tester data for TV-2, TV-4, TV-7, I-177, lots of other good info
from Nolan Lee's site as recovered via the wayback machine
TV-7 tube tester data and repair/ calibration info
from Jose Gavila. Heathkit
Lots of Heath schematics and manuals
from Tubular Electronics. Currently the most comprehensive and open Heathkit schematic site
More Heath schematics
from
The Heath circuit archive as resurrected and enlarged by Paul Stenning.
A useful
Heathkit parts cross-reference list
from Don at Datapro.
Heathkit trouble-shooting tips
from Bill Wilkinson
Tube data
Lots of tube data via PDF copies
from tube manuals courtesy of Frank. Excellent info source
for US, European, and other tubes.
Download the entire RCA HB-3 tube manual series
detailed tube specs. Excellent resource
NJ7P's tube database
Type in a tube number and get info.
Handy 4 digit and Euro tube to standard JAN tube cross-reference chart
Handy VT tube to standard JAN tube cross-reference chart
Transmitter tube reference books, equipment manuals
and lots of other good stuff from Ralph, W5JGV
Transformers, catalogs and miscellaneous
Lots of old transformer catalogs
UTC, Stancor, Peerless, Acrosound, Merit, Thordarson, Chicago, etc. from KD5OEI
Meissner
Due to a now defunct website,
the excellent Meissner "How to Build" manual has been moved to my dropbox.
Download old Thordarson, UTC, and other transformer catalogs
from W5AMI.
bibliography of ARRL's older Product Reviews
published in QST from 1965 to 2007. Link is via the "Wayback Machine"
Download the National technical bulletins for the NC-300 and a couple of other models
from Ed Tanton.
Complete books, handbooks, and radio/ audio repair courses
More than 4 gigabytes of old books
including the 1936 and 1941 ARRL Handbooks
, 1940 and 1959 "west coast" Radio Handbooks (Bill Orr), Audel's Radiomans Guide, several books on vacuum tubes and other excellent radio related books courtesy of Pete Millett (Large PDF's)
Allied Electronics Data Handbook. 1966 (5th edition)
Lots of data including European-American tube substitutions and number equivalents, (pages 60-64)
"Servicing Radio and Television with a Vacuum Tube Voltmeter"
and also "How to Service Radios With an Oscilloscope"
Books by Sylvania
in PDF form hosted by a French site
The American Radio History website
has a forty year collection of Radio News
, a complete set of Popular Electronics
. Also Radio-TV Experimenter,
Radio Craft
and other great electronics magazines.
Page down to "TECHNICAL: Consumer Electronics - Modern Era"
and "EARLY RADIO - Consumer Electronics"
to find the hobbyist magazines
Bad link? Try it on the "Wayback Machine" net archive
The "Wayback Machine"
captures whole portions of the net on different dates. The info from your dead link may be here.
Spirit Net
Check into the Spirit Net
a nightly net to discuss issues related to eternal life. WA3MNS
is net control.
E-mail Address courtesy of gmail
Send a message to the keeper of this web page
Rich kb8tad
for a personal reply.
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