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| Topics |
Author |
Replies |
Views |
Last post |
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 Actual radiated power of part 15 AM Transmitters?
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Dare4444 |
8 |
363 |
Oct Wed 27, 2021 11:44 am
Dare4444
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AM transistor radio from scratch
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whfh99 |
16 |
543 |
Oct Wed 27, 2021 7:02 am
aurel
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TRF HOMEBREW RADIO
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ACORNVALVE |
15 |
2972 |
Oct Mon 25, 2021 12:51 am
Macrohenry
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Wave Trap questions
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Rich, W3HWJ |
9 |
201 |
Oct Sun 24, 2021 10:50 pm
Rich, W3HWJ
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How to alter your air variable capacitor.
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lennyshere |
12 |
3715 |
Oct Sun 24, 2021 2:29 am
OldRelic
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Wooden 5-tube homebrew radio
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radiotvnut |
3 |
341 |
Oct Sun 24, 2021 1:04 am
Tim Tress
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Tube RF Mixer expertise needed (Help)
|
pehamel |
1 |
111 |
Oct Sat 23, 2021 9:47 pm
Eickerman
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Looking for two beta testers for AM Transmitter
[  Go to page: 1, 2, 3, 4, 5 ]
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Macrohenry |
84 |
3031 |
Oct Sat 23, 2021 3:38 pm
Macrohenry
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Redesigning/Improving the Talking House Transmitter
[ Go to page: 1, 2, 3 ]
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cc333 |
48 |
1176 |
Oct Thu 21, 2021 6:04 pm
Dare4444
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Medium Wave AM Transmitter Ideas & Circuits. Post Them Here.
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Dare4444 |
13 |
667 |
Oct Wed 20, 2021 7:06 am
Dare4444
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Does anyone have the schematic for the Tom Kipgen radio
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mrx |
8 |
377 |
Oct Sun 17, 2021 7:28 pm
battradio@
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Can someone help me identify this?
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robroot61 |
11 |
437 |
Oct Sun 17, 2021 7:15 pm
battradio@
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Popular Electronics 1955 "One Tube Wallop"
[ Go to page: 1, 2 ]
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transoceanic 8523 |
27 |
5950 |
Oct Sat 16, 2021 8:28 pm
Max Brandt
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Antenna for QRP pixie kit
[ Go to page: 1, 2 ]
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whfh99 |
22 |
2137 |
Oct Sat 16, 2021 5:14 pm
whfh99
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Doerle 3 tube signal gripper question
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ehjohnny |
7 |
388 |
Oct Fri 15, 2021 2:29 pm
Weanedontubes
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PS design for vintage low frequency receiver
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SmoothOscillator |
5 |
319 |
Oct Thu 14, 2021 3:41 am
SmoothOscillator
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Tecsun 2P3 troubleshooting
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ohiotech |
6 |
1663 |
Oct Sat 09, 2021 7:50 pm
Saturn5tony
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2n7000 X 3 , Class E Part15 Transmitter Idea
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Dare4444 |
6 |
312 |
Oct Fri 08, 2021 6:11 am
Dare4444
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Eight Crystal Controlled Frequencies for MW band. No PLL!
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Dare4444 |
2 |
167 |
Oct Thu 07, 2021 2:30 am
Dare4444
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Anyone ever tried base mod. for AM? Circuit..
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Dare4444 |
3 |
281 |
Oct Wed 06, 2021 11:31 pm
Dare4444
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1.5V AM Transmitter with 100% modulation
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Dare4444 |
3 |
352 |
Oct Wed 06, 2021 3:33 pm
SkyKing
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VHF low-band TV transmitter circuits
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neazoi |
1 |
210 |
Oct Wed 06, 2021 2:44 am
Dare4444
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Ideas for a 12 - 13,5 VDC to 12 - 13,5 VAC inverter?
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SIXMILLION DOLLARMAN |
4 |
203 |
Oct Tue 05, 2021 1:31 pm
ACORNVALVE
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"Free" at VOMARC today
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Rich, W3HWJ |
1 |
219 |
Oct Sat 02, 2021 11:22 pm
mblack
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74HC04 Franklin Osc based AM Transmitter. (Cool circuit!)
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Dare4444 |
9 |
443 |
Oct Sat 02, 2021 4:59 am
Dare4444
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One transistor part 15 AM Transmitter!
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Dare4444 |
5 |
359 |
Oct Fri 01, 2021 2:26 pm
ACORNVALVE
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Another Part 15 AMTX idea. Would step down transformer work?
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Dare4444 |
6 |
301 |
Sep Wed 29, 2021 10:06 pm
ACORNVALVE
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300% positive modulation from 4 transistor AMTX
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Dare4444 |
9 |
435 |
Sep Tue 28, 2021 11:43 pm
Dare4444
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Question: headphones and protecting the OPT transformer
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allthumbs |
13 |
393 |
Sep Sun 26, 2021 4:53 pm
BikenSwim
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2n2219A based 2m ham band amplifier
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Dare4444 |
4 |
285 |
Sep Fri 24, 2021 11:34 am
vu2nan
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anyone have any info on the Gibbons radio circuit?
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mrx |
0 |
175 |
Sep Thu 23, 2021 6:00 am
mrx
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New AM Transmitter Circuit Idea (Schematics).
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Dare4444 |
8 |
336 |
Sep Wed 22, 2021 11:30 pm
Dare4444
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8 channel crystal controlled AM broadcast transmittet
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Dare4444 |
0 |
164 |
Sep Wed 22, 2021 5:26 pm
Dare4444
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Vectronics 1290K Revisited with pushpull 2n7000
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Dare4444 |
4 |
250 |
Sep Wed 22, 2021 5:13 pm
Dare4444
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screen bias for the control grid of a 12sk7 tube?
|
currentresident75 |
3 |
217 |
Sep Tue 21, 2021 5:29 pm
currentresident75
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BUILD AN AM TRANSMITTER FOR USE WITH ANTIQUE RADIOS
[ Go to page: 1, 2 ]
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Dare4444 |
20 |
709 |
Sep Tue 21, 2021 1:40 am
Dare4444
|
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Speaker level converter
|
Tube Radio |
0 |
166 |
Sep Mon 20, 2021 1:32 pm
Tube Radio
|
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Spider coil forms
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jimbob |
12 |
782 |
Sep Sun 19, 2021 10:48 am
COM-NAV-ECM
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Speaker Box Project
|
ZenithRadios |
7 |
380 |
Sep Sat 18, 2021 7:08 pm
Tube Radio
|
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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 |
1193 |
Sep Fri 17, 2021 8:11 am
Dare4444
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Frequency counter
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jimbob |
7 |
396 |
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 |
315 |
Sep Wed 15, 2021 2:19 am
LM386
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VFO Isolation Buffer Simulation
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Dare4444 |
13 |
564 |
Sep Tue 14, 2021 6:44 pm
Dare4444
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Capacitor mounting brackets
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jimbob |
2 |
163 |
Sep Tue 14, 2021 4:26 pm
Chas
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Cascoded J310 MW band active antenna
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Dare4444 |
2 |
188 |
Sep Tue 14, 2021 1:46 pm
Dare4444
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Solid State Transformer Substitute: Update
[ Go to page: 1, 2 ]
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JnTX |
28 |
7170 |
Sep Mon 13, 2021 11:18 am
ACORNVALVE
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Outputs treatment with a CD4060
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Macrohenry |
19 |
631 |
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 |
2892 |
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 |
325 |
Sep Sat 11, 2021 5:59 pm
Dare4444
|
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Help rebiasing my bagpipes to Si!
[ Go to page: 1, 2 ]
|
Timmy73 |
23 |
1386 |
Sep Wed 01, 2021 7:59 am
ACORNVALVE
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