Forums :: NEW! Web Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives
Support This Site: Contributors :: Advertise


It is currently Oct Tue 26, 2021 1:42 pm


All times are UTC [ DST ]





Post New Topic  [ 4017 topics ]  Go to page 1, 2, 3, 4, 5 ... 81  Next
 Topics   Author   Replies   Views   Last post 
No unread posts Attachment(s) Actual radiated power of part 15 AM Transmitters?

Dare4444

6

323

Oct Tue 26, 2021 2:13 am

Dare4444 View the latest post

No unread posts Attachment(s) TRF HOMEBREW RADIO

ACORNVALVE

15

2912

Oct Mon 25, 2021 12:51 am

Macrohenry View the latest post

No unread posts Attachment(s) Wave Trap questions

Rich, W3HWJ

9

179

Oct Sun 24, 2021 10:50 pm

Rich, W3HWJ View the latest post

No unread posts Attachment(s) AM transistor radio from scratch

whfh99

15

510

Oct Sun 24, 2021 11:39 am

aurel View the latest post

No unread posts Attachment(s) How to alter your air variable capacitor.

lennyshere

12

3696

Oct Sun 24, 2021 2:29 am

OldRelic View the latest post

No unread posts Attachment(s) Wooden 5-tube homebrew radio

radiotvnut

3

326

Oct Sun 24, 2021 1:04 am

Tim Tress View the latest post

No unread posts Attachment(s) Tube RF Mixer expertise needed (Help)

pehamel

1

99

Oct Sat 23, 2021 9:47 pm

Eickerman View the latest post

No unread posts Attachment(s) Looking for two beta testers for AM Transmitter

[ Go to pageGo to page: 1, 2, 3, 4, 5 ]

Macrohenry

84

3005

Oct Sat 23, 2021 3:38 pm

Macrohenry View the latest post

No unread posts Attachment(s) Redesigning/Improving the Talking House Transmitter

[ Go to pageGo to page: 1, 2, 3 ]

cc333

48

1159

Oct Thu 21, 2021 6:04 pm

Dare4444 View the latest post

No unread posts Attachment(s) Medium Wave AM Transmitter Ideas & Circuits. Post Them Here.

Dare4444

13

664

Oct Wed 20, 2021 7:06 am

Dare4444 View the latest post

No unread posts Does anyone have the schematic for the Tom Kipgen radio

mrx

8

372

Oct Sun 17, 2021 7:28 pm

battradio@ View the latest post

No unread posts Attachment(s) Can someone help me identify this?

robroot61

11

427

Oct Sun 17, 2021 7:15 pm

battradio@ View the latest post

No unread posts Attachment(s) Popular Electronics 1955 "One Tube Wallop"

[ Go to pageGo to page: 1, 2 ]

transoceanic 8523

27

5943

Oct Sat 16, 2021 8:28 pm

Max Brandt View the latest post

No unread posts Antenna for QRP pixie kit

[ Go to pageGo to page: 1, 2 ]

whfh99

22

2123

Oct Sat 16, 2021 5:14 pm

whfh99 View the latest post

No unread posts Doerle 3 tube signal gripper question

ehjohnny

7

381

Oct Fri 15, 2021 2:29 pm

Weanedontubes View the latest post

No unread posts Attachment(s) PS design for vintage low frequency receiver

SmoothOscillator

5

319

Oct Thu 14, 2021 3:41 am

SmoothOscillator View the latest post

No unread posts Attachment(s) Tecsun 2P3 troubleshooting

ohiotech

6

1661

Oct Sat 09, 2021 7:50 pm

Saturn5tony View the latest post

No unread posts Attachment(s) 2n7000 X 3 , Class E Part15 Transmitter Idea

Dare4444

6

311

Oct Fri 08, 2021 6:11 am

Dare4444 View the latest post

No unread posts Attachment(s) Eight Crystal Controlled Frequencies for MW band. No PLL!

Dare4444

2

167

Oct Thu 07, 2021 2:30 am

Dare4444 View the latest post

No unread posts Attachment(s) Anyone ever tried base mod. for AM? Circuit..

Dare4444

3

279

Oct Wed 06, 2021 11:31 pm

Dare4444 View the latest post

No unread posts Attachment(s) 1.5V AM Transmitter with 100% modulation

Dare4444

3

352

Oct Wed 06, 2021 3:33 pm

SkyKing View the latest post

No unread posts VHF low-band TV transmitter circuits

neazoi

1

207

Oct Wed 06, 2021 2:44 am

Dare4444 View the latest post

No unread posts Ideas for a 12 - 13,5 VDC to 12 - 13,5 VAC inverter?

SIXMILLION DOLLARMAN

4

202

Oct Tue 05, 2021 1:31 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) "Free" at VOMARC today

Rich, W3HWJ

1

217

Oct Sat 02, 2021 11:22 pm

mblack View the latest post

No unread posts Attachment(s) 74HC04 Franklin Osc based AM Transmitter. (Cool circuit!)

Dare4444

9

437

Oct Sat 02, 2021 4:59 am

Dare4444 View the latest post

No unread posts Attachment(s) One transistor part 15 AM Transmitter!

Dare4444

5

357

Oct Fri 01, 2021 2:26 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Another Part 15 AMTX idea. Would step down transformer work?

Dare4444

6

298

Sep Wed 29, 2021 10:06 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) 300% positive modulation from 4 transistor AMTX

Dare4444

9

435

Sep Tue 28, 2021 11:43 pm

Dare4444 View the latest post

No unread posts Attachment(s) Question: headphones and protecting the OPT transformer

allthumbs

13

392

Sep Sun 26, 2021 4:53 pm

BikenSwim View the latest post

No unread posts Attachment(s) 2n2219A based 2m ham band amplifier

Dare4444

4

285

Sep Fri 24, 2021 11:34 am

vu2nan View the latest post

No unread posts anyone have any info on the Gibbons radio circuit?

mrx

0

173

Sep Thu 23, 2021 6:00 am

mrx View the latest post

No unread posts Attachment(s) New AM Transmitter Circuit Idea (Schematics).

Dare4444

8

334

Sep Wed 22, 2021 11:30 pm

Dare4444 View the latest post

No unread posts Attachment(s) 8 channel crystal controlled AM broadcast transmittet

Dare4444

0

160

Sep Wed 22, 2021 5:26 pm

Dare4444 View the latest post

No unread posts Attachment(s) Vectronics 1290K Revisited with pushpull 2n7000

Dare4444

4

250

Sep Wed 22, 2021 5:13 pm

Dare4444 View the latest post

No unread posts screen bias for the control grid of a 12sk7 tube?

currentresident75

3

217

Sep Tue 21, 2021 5:29 pm

currentresident75 View the latest post

No unread posts Attachment(s) BUILD AN AM TRANSMITTER FOR USE WITH ANTIQUE RADIOS

[ Go to pageGo to page: 1, 2 ]

Dare4444

20

705

Sep Tue 21, 2021 1:40 am

Dare4444 View the latest post

No unread posts Speaker level converter

Tube Radio

0

166

Sep Mon 20, 2021 1:32 pm

Tube Radio View the latest post

No unread posts Attachment(s) Spider coil forms

jimbob

12

778

Sep Sun 19, 2021 10:48 am

COM-NAV-ECM View the latest post

No unread posts Speaker Box Project

ZenithRadios

7

379

Sep Sat 18, 2021 7:08 pm

Tube Radio View the latest post

No unread posts Attachment(s) How to build an AM antenna optimized for a single frequency?

[ Go to pageGo to page: 1, 2, 3 ]

soloapollo

49

1188

Sep Fri 17, 2021 8:11 am

Dare4444 View the latest post

No unread posts Frequency counter

jimbob

7

394

Sep Thu 16, 2021 10:21 pm

BobWeaver View the latest post

This topic is locked, you cannot edit posts or make further replies. Does Anyone Know What Has Happened To theradioboard.com?

LM386

2

314

Sep Wed 15, 2021 2:19 am

LM386 View the latest post

No unread posts Attachment(s) VFO Isolation Buffer Simulation

Dare4444

13

561

Sep Tue 14, 2021 6:44 pm

Dare4444 View the latest post

No unread posts Capacitor mounting brackets

jimbob

2

162

Sep Tue 14, 2021 4:26 pm

Chas View the latest post

No unread posts Attachment(s) Cascoded J310 MW band active antenna

Dare4444

2

188

Sep Tue 14, 2021 1:46 pm

Dare4444 View the latest post

No unread posts Attachment(s) Solid State Transformer Substitute: Update

[ Go to pageGo to page: 1, 2 ]

JnTX

28

7164

Sep Mon 13, 2021 11:18 am

ACORNVALVE View the latest post

No unread posts Attachment(s) Outputs treatment with a CD4060

Macrohenry

19

631

Sep Sun 12, 2021 4:48 pm

Macrohenry View the latest post

No unread posts Attachment(s) Homebuild Reinartz tuner amp.

[ Go to pageGo to page: 1, 2 ]

beast775

35

2889

Sep Sun 12, 2021 7:29 am

beast775 View the latest post

This topic is locked, you cannot edit posts or make further replies. Reason for removal of my 0.5mW FM TX?

Dare4444

3

323

Sep Sat 11, 2021 5:59 pm

Dare4444 View the latest post

No unread posts Attachment(s) Help rebiasing my bagpipes to Si!

[ Go to pageGo to page: 1, 2 ]

Timmy73

23

1377

Sep Wed 01, 2021 7:59 am

ACORNVALVE View the latest post

Post New Topic  [ 4017 topics ]  Go to page 1, 2, 3, 4, 5 ... 81  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: kc2zfa and 10 guests


Search for:
Jump to:  


































Privacy Policy :: Powered by phpBB