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


It is currently Sep Tue 21, 2021 3:28 pm


All times are UTC [ DST ]





Post New Topic  [ 3993 topics ]  Go to page 1, 2, 3, 4, 5 ... 80  Next
 Topics   Author   Replies   Views   Last post 
Announcements
This topic is locked, you cannot edit posts or make further replies. Addition to Forum Rules

Alan Voorhees

0

9917

Jul Fri 30, 2021 3:38 am

Alan Voorhees View the latest post

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

Dare4444

0

7

Sep Tue 21, 2021 2:23 pm

Dare4444 View the latest post

No unread posts Question: headphones and protecting the OPT transformer

allthumbs

4

48

Sep Tue 21, 2021 12:03 pm

John Bartley 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

330

Sep Tue 21, 2021 1:40 am

Dare4444 View the latest post

No unread posts Speaker level converter

Tube Radio

0

53

Sep Mon 20, 2021 1:32 pm

Tube Radio View the latest post

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

currentresident75

2

81

Sep Mon 20, 2021 12:22 pm

Dave Doughty View the latest post

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

Dare4444

3

109

Sep Sun 19, 2021 8:39 pm

Dare4444 View the latest post

No unread posts Attachment(s) Spider coil forms

jimbob

12

466

Sep Sun 19, 2021 10:48 am

COM-NAV-ECM View the latest post

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

Dare4444

3

87

Sep Sat 18, 2021 8:54 pm

Dare4444 View the latest post

No unread posts Speaker Box Project

ZenithRadios

7

209

Sep Sat 18, 2021 7:08 pm

Tube Radio View the latest post

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

[ Go to pageGo to page: 1, 2 ]

Macrohenry

26

713

Sep Sat 18, 2021 12:15 pm

Dare4444 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

679

Sep Fri 17, 2021 8:11 am

Dare4444 View the latest post

No unread posts Frequency counter

jimbob

7

216

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

205

Sep Wed 15, 2021 2:19 am

LM386 View the latest post

No unread posts Attachment(s) VFO Isolation Buffer Simulation

Dare4444

13

380

Sep Tue 14, 2021 6:44 pm

Dare4444 View the latest post

No unread posts Capacitor mounting brackets

jimbob

2

102

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

101

Sep Tue 14, 2021 1:46 pm

Dare4444 View the latest post

No unread posts Attachment(s) Tecsun 2P3 troubleshooting

ohiotech

5

1410

Sep Mon 13, 2021 6:21 pm

gearhead222 View the latest post

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

[ Go to pageGo to page: 1, 2 ]

JnTX

28

6739

Sep Mon 13, 2021 11:18 am

ACORNVALVE View the latest post

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

Macrohenry

19

494

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

2513

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

216

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

1031

Sep Wed 01, 2021 7:59 am

ACORNVALVE View the latest post

No unread posts AC Hum Modulation Buster Questions

Macrohenry

2

410

Aug Tue 31, 2021 5:13 am

Audioman View the latest post

No unread posts Attachment(s) AM LOOP Antenna

[ Go to pageGo to page: 1, 2 ]

fifties

34

17454

Aug Mon 30, 2021 12:28 pm

Dalton View the latest post

No unread posts Attachment(s) Heathkit WA-P2 power supply build questions

Govee

14

1160

Aug Sat 28, 2021 12:15 pm

COM-NAV-ECM View the latest post

No unread posts Attachment(s) Assistance requested with a superhet build.

[ Go to pageGo to page: 1, 2 ]

928GTS

21

3629

Aug Thu 26, 2021 9:40 pm

928GTS View the latest post

No unread posts Attachment(s) Choke hum on LM386 Transmitter

[ Go to pageGo to page: 1, 2 ]

Macrohenry

23

1067

Aug Tue 24, 2021 3:21 am

Macrohenry View the latest post

No unread posts Attachment(s) Two more instruments for Brian Wilson

Macrohenry

5

590

Aug Sat 21, 2021 9:41 pm

Colin Ames View the latest post

No unread posts Attachment(s) New Project: Audio/Visual Part 15 Antenna Tuning Indicator

Macrohenry

3

322

Aug Sat 21, 2021 9:14 pm

Macrohenry View the latest post

No unread posts Attachment(s) Short antenna capacitance

Macrohenry

3

2475

Aug Tue 17, 2021 6:59 pm

Macrohenry View the latest post

No unread posts Attachment(s) Stereo to monophonic conversion circuit to build?

soloapollo

18

831

Aug Tue 17, 2021 12:43 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Slope detection of broadcast FM?

[ Go to pageGo to page: 1, 2 ]

928GTS

21

2325

Aug Fri 13, 2021 11:47 pm

ACORNVALVE View the latest post

No unread posts 12au7 sw regen.

jimbob

11

1640

Aug Tue 10, 2021 2:28 pm

jimbob View the latest post

No unread posts Attachment(s) First time crystal radio build

[ Go to pageGo to page: 1 ... 4, 5, 6 ]

whfh99

117

7983

Aug Tue 10, 2021 7:05 am

vu2nan View the latest post

No unread posts Attachment(s) Signal tracer build

whfh99

11

746

Aug Sun 08, 2021 4:42 pm

whfh99 View the latest post

No unread posts Attachment(s) High Voltage Regulator Design Issue

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

Jthorusen

82

3448

Aug Sat 07, 2021 11:36 pm

Jthorusen View the latest post

No unread posts Attachment(s) 3mW FM Transmitter based on Franklin Oscillator

Dare4444

0

374

Aug Sat 07, 2021 5:53 pm

Dare4444 View the latest post

No unread posts Talking House 5.0 audio overload and hum/buzz

Kramden66

8

924

Aug Sat 07, 2021 5:14 pm

Tube Radio View the latest post

No unread posts Attachment(s) Solid state 1920's speaker amplifier revisited

Tube Radio

17

3011

Aug Sat 07, 2021 4:56 pm

Tube Radio View the latest post

No unread posts Attachment(s) Bluetooth, AM Transmitter

criageek

7

820

Aug Sat 07, 2021 2:10 am

criageek View the latest post

No unread posts Attachment(s) simple formulas for calculating tank circuit values?????????

shockedagain75

14

1340

Aug Fri 06, 2021 3:51 pm

KK6GM View the latest post

No unread posts Attachment(s) Antennae question

keith1898

15

829

Aug Tue 03, 2021 4:36 pm

poulsbobill View the latest post

No unread posts Attachment(s) Low Noise DC receiver idea

Dare4444

0

359

Aug Sun 01, 2021 10:27 pm

Dare4444 View the latest post

No unread posts Attachment(s) SDR Transceiver Idea with 2n7000

Dare4444

2

442

Jul Fri 30, 2021 7:36 pm

Dare4444 View the latest post

No unread posts Attachment(s) SSB transceiver idea

[ Go to pageGo to page: 1, 2 ]

Dare4444

20

1248

Jul Fri 30, 2021 8:14 am

Dare4444 View the latest post

No unread posts Attachment(s) Polyakov mixer working for DSB generation?

sv3ora

6

523

Jul Fri 30, 2021 5:49 am

KX5JSC View the latest post

No unread posts How To Properly Install a On Off Slide Switche ?

Frank512

9

1101

Jul Thu 29, 2021 4:03 pm

err ducks View the latest post

No unread posts Attachment(s) AM with IN4148 double balanced mixer

Dare4444

2

433

Jul Mon 26, 2021 9:19 pm

Dare4444 View the latest post

No unread posts Attachment(s) 38 as regenerative detector

allthumbs

13

1536

Jul Mon 26, 2021 7:56 pm

err ducks View the latest post

No unread posts Attachment(s) Another regen 1D8 tube.

ballroad

3

523

Jul Sat 24, 2021 12:16 am

mrx View the latest post

Post New Topic  [ 3993 topics ]  Go to page 1, 2, 3, 4, 5 ... 80  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 11 guests


Search for:
Jump to:  


































Privacy Policy :: Powered by phpBB