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| Topics |
Author |
Replies |
Views |
Last post |
| Announcements |
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Addition to Forum Rules
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Alan Voorhees |
0 |
9282 |
Jul Fri 30, 2021 3:38 am
Alan Voorhees
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| Topics |
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 Looking for two beta testers for AM Transmitter
[  Go to page: 1, 2 ]
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Macrohenry |
26 |
569 |
Sep Sat 18, 2021 12:15 pm
Dare4444
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Spider coil forms
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jimbob |
10 |
323 |
Sep Sat 18, 2021 9:12 am
COM-NAV-ECM
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Speaker Box Project
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ZenithRadios |
6 |
148 |
Sep Fri 17, 2021 4:41 pm
Macrohenry
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How to build an AM antenna optimized for a single frequency?
[ Go to page: 1, 2, 3 ]
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soloapollo |
49 |
506 |
Sep Fri 17, 2021 8:11 am
Dare4444
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Frequency counter
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jimbob |
7 |
186 |
Sep Thu 16, 2021 10:21 pm
BobWeaver
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Does Anyone Know What Has Happened To theradioboard.com?
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LM386 |
2 |
164 |
Sep Wed 15, 2021 2:19 am
LM386
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VFO Isolation Buffer Simulation
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Dare4444 |
13 |
294 |
Sep Tue 14, 2021 6:44 pm
Dare4444
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Capacitor mounting brackets
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jimbob |
2 |
78 |
Sep Tue 14, 2021 4:26 pm
Chas
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Cascoded J310 MW band active antenna
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Dare4444 |
2 |
81 |
Sep Tue 14, 2021 1:46 pm
Dare4444
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Tecsun 2P3 troubleshooting
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ohiotech |
5 |
1401 |
Sep Mon 13, 2021 6:21 pm
gearhead222
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Solid State Transformer Substitute: Update
[ Go to page: 1, 2 ]
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JnTX |
28 |
6678 |
Sep Mon 13, 2021 11:18 am
ACORNVALVE
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Outputs treatment with a CD4060
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Macrohenry |
19 |
399 |
Sep Sun 12, 2021 4:48 pm
Macrohenry
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Homebuild Reinartz tuner amp.
[ Go to page: 1, 2 ]
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beast775 |
35 |
2438 |
Sep Sun 12, 2021 7:29 am
beast775
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Reason for removal of my 0.5mW FM TX?
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Dare4444 |
3 |
182 |
Sep Sat 11, 2021 5:59 pm
Dare4444
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Help rebiasing my bagpipes to Si!
[ Go to page: 1, 2 ]
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Timmy73 |
23 |
1006 |
Sep Wed 01, 2021 7:59 am
ACORNVALVE
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AC Hum Modulation Buster Questions
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Macrohenry |
2 |
395 |
Aug Tue 31, 2021 5:13 am
Audioman
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AM LOOP Antenna
[ Go to page: 1, 2 ]
|
fifties |
34 |
17383 |
Aug Mon 30, 2021 12:28 pm
Dalton
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Heathkit WA-P2 power supply build questions
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Govee |
14 |
1109 |
Aug Sat 28, 2021 12:15 pm
COM-NAV-ECM
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Assistance requested with a superhet build.
[ Go to page: 1, 2 ]
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928GTS |
21 |
3596 |
Aug Thu 26, 2021 9:40 pm
928GTS
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Choke hum on LM386 Transmitter
[ Go to page: 1, 2 ]
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Macrohenry |
23 |
1017 |
Aug Tue 24, 2021 3:21 am
Macrohenry
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Two more instruments for Brian Wilson
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Macrohenry |
5 |
579 |
Aug Sat 21, 2021 9:41 pm
Colin Ames
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New Project: Audio/Visual Part 15 Antenna Tuning Indicator
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Macrohenry |
3 |
315 |
Aug Sat 21, 2021 9:14 pm
Macrohenry
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Short antenna capacitance
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Macrohenry |
3 |
2329 |
Aug Tue 17, 2021 6:59 pm
Macrohenry
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Stereo to monophonic conversion circuit to build?
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soloapollo |
18 |
811 |
Aug Tue 17, 2021 12:43 pm
ACORNVALVE
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Slope detection of broadcast FM?
[ Go to page: 1, 2 ]
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928GTS |
21 |
2304 |
Aug Fri 13, 2021 11:47 pm
ACORNVALVE
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12au7 sw regen.
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jimbob |
11 |
1619 |
Aug Tue 10, 2021 2:28 pm
jimbob
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First time crystal radio build
[ Go to page: 1 ... 4, 5, 6 ]
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whfh99 |
117 |
7904 |
Aug Tue 10, 2021 7:05 am
vu2nan
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Signal tracer build
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whfh99 |
11 |
725 |
Aug Sun 08, 2021 4:42 pm
whfh99
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High Voltage Regulator Design Issue
[ Go to page: 1, 2, 3, 4, 5 ]
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Jthorusen |
82 |
3348 |
Aug Sat 07, 2021 11:36 pm
Jthorusen
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3mW FM Transmitter based on Franklin Oscillator
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Dare4444 |
0 |
359 |
Aug Sat 07, 2021 5:53 pm
Dare4444
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Talking House 5.0 audio overload and hum/buzz
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Kramden66 |
8 |
909 |
Aug Sat 07, 2021 5:14 pm
Tube Radio
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Solid state 1920's speaker amplifier revisited
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Tube Radio |
17 |
2987 |
Aug Sat 07, 2021 4:56 pm
Tube Radio
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Bluetooth, AM Transmitter
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criageek |
7 |
794 |
Aug Sat 07, 2021 2:10 am
criageek
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simple formulas for calculating tank circuit values?????????
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shockedagain75 |
14 |
1332 |
Aug Fri 06, 2021 3:51 pm
KK6GM
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Antennae question
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keith1898 |
15 |
814 |
Aug Tue 03, 2021 4:36 pm
poulsbobill
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Low Noise DC receiver idea
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Dare4444 |
0 |
346 |
Aug Sun 01, 2021 10:27 pm
Dare4444
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SDR Transceiver Idea with 2n7000
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Dare4444 |
2 |
432 |
Jul Fri 30, 2021 7:36 pm
Dare4444
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SSB transceiver idea
[ Go to page: 1, 2 ]
|
Dare4444 |
20 |
1229 |
Jul Fri 30, 2021 8:14 am
Dare4444
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Polyakov mixer working for DSB generation?
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sv3ora |
6 |
508 |
Jul Fri 30, 2021 5:49 am
KX5JSC
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How To Properly Install a On Off Slide Switche ?
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Frank512 |
9 |
1094 |
Jul Thu 29, 2021 4:03 pm
err ducks
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AM with IN4148 double balanced mixer
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Dare4444 |
2 |
427 |
Jul Mon 26, 2021 9:19 pm
Dare4444
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38 as regenerative detector
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allthumbs |
13 |
1525 |
Jul Mon 26, 2021 7:56 pm
err ducks
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Another regen 1D8 tube.
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ballroad |
3 |
513 |
Jul Sat 24, 2021 12:16 am
mrx
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Schematic for regen utilizing an 815 tube?
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KA8GEF |
3 |
442 |
Jul Fri 23, 2021 11:41 pm
N0BST
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Tube IF transformers
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dr pepper |
15 |
1953 |
Jul Fri 23, 2021 3:21 am
ACORNVALVE
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Variable Frequency Synthesized Source for AM Transmitters
|
NW2K |
1 |
463 |
Jul Thu 22, 2021 9:35 pm
Colin Ames
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diy FM superhet without audio ?
|
aurel |
0 |
371 |
Jul Thu 22, 2021 2:26 pm
aurel
|
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Power ON indicator for battery tube sets.
|
Robert Lozier |
14 |
1038 |
Jul Wed 21, 2021 6:38 pm
Tube Radio
|
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2m receiver ideas
|
Dare4444 |
6 |
835 |
Jul Wed 21, 2021 2:56 pm
Dare4444
|
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Single-end output amp schematic using 211 output tubes?
|
soloapollo |
4 |
711 |
Jul Sun 18, 2021 1:04 pm
NW2K
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