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No unread posts Attachment(s) Crystal radio

Chriscrosley1

2

71

Dec Tue 07, 2021 9:42 pm

fifties View the latest post

No unread posts Attachment(s) Home made ultradyne

AlekZ

1

13

Dec Tue 07, 2021 9:38 pm

Chas View the latest post

No unread posts Attachment(s) RF switchmode amplifiers PDF

Dare4444

0

12

Dec Tue 07, 2021 8:27 pm

Dare4444 View the latest post

No unread posts One Transistor Superhet

transistor495

3

206

Dec Tue 07, 2021 6:20 pm

KB4QAA View the latest post

No unread posts Attachment(s) Wiring a kit/homebrew?

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Govee

30

720

Dec Tue 07, 2021 1:47 pm

Govee View the latest post

No unread posts Attachment(s) PWM AM exciter. Should work!!

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Dare4444

23

472

Dec Tue 07, 2021 12:29 pm

Dare4444 View the latest post

No unread posts Attachment(s) Possible audio amp build - need transformer help please

TV MAN

10

335

Dec Tue 07, 2021 3:39 am

TV MAN View the latest post

No unread posts Attachment(s) Part 15 frustration possible solution?

Macrohenry

8

298

Dec Tue 07, 2021 12:40 am

Peter Bertini View the latest post

No unread posts Attachment(s) Legally exceeding the 100mW limit, is this a loop hole?

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Dare4444

47

1047

Dec Mon 06, 2021 10:47 am

ACORNVALVE View the latest post

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

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cc333

51

2000

Dec Sat 04, 2021 1:39 pm

mblack View the latest post

No unread posts Attachment(s) Electrostatic CRT deflection circuit

Tube Radio

14

493

Dec Thu 02, 2021 2:11 pm

Tube Radio View the latest post

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

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robroot61

35

1840

Dec Thu 02, 2021 12:33 pm

robroot61 View the latest post

No unread posts Chassis punches

jimbob

6

395

Dec Wed 01, 2021 5:28 am

Mikeinkcmo View the latest post

No unread posts Attachment(s) Does anyone have the schematic for the Tom Kipgen radio

mrx

11

741

Nov Mon 29, 2021 9:08 pm

Dave Schmarder View the latest post

No unread posts Attachment(s) Single transistor AM TX

Dare4444

7

481

Nov Mon 29, 2021 4:00 pm

Dare4444 View the latest post

No unread posts Attachment(s) Obtain a gain of 450 from one vacuum tube

flyboy71

16

4100

Nov Sun 28, 2021 8:55 pm

ACORNVALVE View the latest post

Moved topic Attachment(s) Moved: Grid/Tip connector purpose

breadbox

5

380

Dec Wed 01, 2021 2:30 am

azenithnut View the latest post

No unread posts Attachment(s) Part 15 Rules?

Rich, W3HWJ

9

443

Nov Fri 26, 2021 9:08 pm

Dare4444 View the latest post

No unread posts Attachment(s) Variation on the 35Z5 ECS oscillator transmitter

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black85vette

93

19229

Nov Fri 26, 2021 8:21 pm

Dare4444 View the latest post

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

Dare4444

10

669

Nov Fri 26, 2021 6:49 pm

Dare4444 View the latest post

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

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Dare4444

27

1618

Nov Fri 26, 2021 6:32 pm

Dare4444 View the latest post

No unread posts Attachment(s) OpAmp AM Transmitter works!!

Dare4444

0

143

Nov Fri 26, 2021 2:02 pm

Dare4444 View the latest post

No unread posts Attachment(s) The Big misconception about electricity

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Dare4444

23

671

Nov Thu 25, 2021 10:52 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) AM modulation index question.

Dare4444

7

246

Nov Wed 24, 2021 12:59 pm

Dare4444 View the latest post

No unread posts Electrostatic CRT and more homebrew

Audioman

0

112

Nov Wed 24, 2021 3:09 am

Audioman View the latest post

No unread posts Attachment(s) Looking for a very tiny AM transmitter

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Paul Dietenberger

31

1310

Nov Thu 18, 2021 7:12 am

Keeta View the latest post

No unread posts Attachment(s) Looking for simple CW encoder and decoder projects

sv3ora

15

1189

Nov Thu 18, 2021 4:55 am

BobWeaver View the latest post

No unread posts Attachment(s) Circuit question

SkyKing

14

652

Nov Wed 17, 2021 2:36 am

SkyKing View the latest post

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

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whfh99

21

1435

Nov Sun 14, 2021 10:43 pm

whfh99 View the latest post

No unread posts Attachment(s) Wave Trap questions

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Rich, W3HWJ

20

1082

Nov Sat 13, 2021 1:29 am

battradio@ View the latest post

No unread posts Navy Loose Coupler wire sizes

mrx

7

438

Nov Fri 12, 2021 7:00 pm

mrx View the latest post

No unread posts Attachment(s) Help With Radio Power Supply

Fordman

10

448

Nov Thu 11, 2021 3:44 pm

Airway Radio Fan View the latest post

No unread posts Attachment(s) RCA RP-190 modification

Tube Radio

10

511

Nov Mon 08, 2021 10:13 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Single Ended Ultra Linear amp builds

Glowtubes

13

825

Nov Thu 04, 2021 10:13 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Design a AM receiver superheterodyne AM front-end

juanmcifuentes

2

369

Nov Thu 04, 2021 6:43 pm

szoftveres View the latest post

No unread posts Attachment(s) Actual radiated power of part 15 AM Transmitters?

Dare4444

16

1009

Nov Thu 04, 2021 5:58 pm

Lou deGonzague View the latest post

Moved topic Moved: Small variable capacitor source???

ehjohnny

10

696

Nov Wed 10, 2021 7:23 am

oldradioparts View the latest post

No unread posts Antenna for QRP pixie kit

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whfh99

23

2698

Oct Sat 30, 2021 9:21 am

COM-NAV-ECM View the latest post

No unread posts Attachment(s) New Use for Chinese "component testers"

Rich, W3HWJ

0

380

Oct Fri 29, 2021 5:14 pm

Rich, W3HWJ View the latest post

No unread posts Attachment(s) TRF HOMEBREW RADIO

ACORNVALVE

15

3515

Oct Mon 25, 2021 12:51 am

Macrohenry View the latest post

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

lennyshere

12

4165

Oct Sun 24, 2021 2:29 am

OldRelic View the latest post

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

radiotvnut

3

605

Oct Sun 24, 2021 1:04 am

Tim Tress View the latest post

No unread posts Attachment(s) Tube RF Mixer expertise needed- Thank you please close

pehamel

1

282

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

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Macrohenry

84

4280

Oct Sat 23, 2021 3:38 pm

Macrohenry View the latest post

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

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transoceanic 8523

27

6490

Oct Sat 16, 2021 8:28 pm

Max Brandt View the latest post

No unread posts Doerle 3 tube signal gripper question

ehjohnny

7

569

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

441

Oct Thu 14, 2021 3:41 am

SmoothOscillator View the latest post

No unread posts Attachment(s) Tecsun 2P3 troubleshooting

ohiotech

6

1833

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

452

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

253

Oct Thu 07, 2021 2:30 am

Dare4444 View the latest post

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