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No unread posts Attachment(s) 20's/30's Homebrew AM Transmitter: Eliminating Hum

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philcotube

21

418

Jun Sat 06, 2020 11:11 am

ACORNVALVE View the latest post

No unread posts Attachment(s) Loop antenna build

black85vette

15

428

Jun Sat 06, 2020 2:58 am

black85vette View the latest post

No unread posts Attachment(s) DYI Weather "NOAA" radio

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transoceanic 8523

21

4098

Jun Sat 06, 2020 2:55 am

mblack View the latest post

No unread posts Attachment(s) Tarnished Silver as a Crystal Radio Detector

vu2nan

12

2614

Jun Fri 05, 2020 11:37 pm

pauls.ironhorse View the latest post

No unread posts Attachment(s) Johnson Smith 1-tube kit 1947

Hue Miller

0

59

Jun Fri 05, 2020 10:44 pm

Hue Miller View the latest post

No unread posts Daytime amateur radio

jimbob

6

223

Jun Fri 05, 2020 3:32 pm

Dare4444 View the latest post

No unread posts AA5 circuit to 12vdc?

928GTS

10

223

Jun Fri 05, 2020 2:28 am

35Z5 View the latest post

No unread posts Attachment(s) $1 TDA2822 bridge amp problems

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shinkuukan

36

859

Jun Fri 05, 2020 2:06 am

shinkuukan View the latest post

No unread posts Attachment(s) Suggestions for regenerative tube receiver

black85vette

10

136

Jun Fri 05, 2020 2:02 am

black85vette View the latest post

No unread posts Attachment(s) Medium Wave Receiver Using Only An LM386 Audio Amplifier

LM386

14

924

Jun Fri 05, 2020 1:33 am

Tom Bavis View the latest post

No unread posts Attachment(s) 9V XTAL FM Microphone

Dare4444

0

117

Jun Wed 03, 2020 11:51 am

Dare4444 View the latest post

No unread posts Attachment(s) Transistor input impedance question

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Dare4444

27

703

Jun Tue 02, 2020 8:34 am

Dare4444 View the latest post

No unread posts Attachment(s) Low Power Crystal FM Transmitter

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Dare4444

22

1060

Jun Tue 02, 2020 3:11 am

Dare4444 View the latest post

No unread posts $12 AM Band Frequency Synthesizer AM

Dare4444

3

185

Jun Tue 02, 2020 1:32 am

BobWeaver View the latest post

No unread posts AM Transmitter - What determines bandwidth?

Mike Toon

3

202

Jun Tue 02, 2020 12:32 am

35Z5 View the latest post

No unread posts Attachment(s) Coil winding

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jimbob

33

1760

Jun Mon 01, 2020 4:29 pm

M1911A1 View the latest post

No unread posts Attachment(s) A Deluxe Receiver for the DX Operator

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Norm Johnson

111

21211

Jun Mon 01, 2020 2:11 pm

WoodchuckTN View the latest post

No unread posts Attachment(s) SW superhet converter build

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JGTubeamps

25

1614

Jun Mon 01, 2020 12:32 pm

JGTubeamps View the latest post

No unread posts Meter series resistor question

Tube Radio

4

108

Jun Mon 01, 2020 11:25 am

Tube Radio View the latest post

No unread posts Attachment(s) Making a 1mW XTAL FM TX is so easy

Dare4444

0

123

May Sun 31, 2020 2:48 pm

Dare4444 View the latest post

This topic is locked, you cannot edit posts or make further replies. Attachment(s) Crystal based 45MHz old FM band audio TX

Dare4444

3

203

May Sun 31, 2020 3:52 am

Alan Voorhees View the latest post

This topic is locked, you cannot edit posts or make further replies. Attachment(s) Proposed Highly Stable 42-50MHz FM Transmitter

Dare4444

1

142

May Sun 31, 2020 3:51 am

Alan Voorhees View the latest post

No unread posts Attachment(s) Homebrew Audio Signal Tracer

KC3NHE

7

261

May Sat 30, 2020 7:28 pm

black85vette View the latest post

No unread posts Attachment(s) 100MHz 74HC04 based FM Transmitter with good sound

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Dare4444

27

615

May Sat 30, 2020 5:39 am

Dare4444 View the latest post

No unread posts Attachment(s) Portable, battery operated tube amplifier/speaker.

szoftveres

13

903

May Sat 30, 2020 4:36 am

westcoastjohn View the latest post

No unread posts Amplifier circuit.

Tube Radio

11

457

May Fri 29, 2020 11:35 am

Tube Radio View the latest post

No unread posts 6888 parts kit

bill hamre

11

2925

May Fri 29, 2020 2:24 am

35Z5 View the latest post

No unread posts Attachment(s) Back to the basic "basics" so bear with me

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IGot2P

66

1355

May Thu 28, 2020 10:35 pm

jrehkopf View the latest post

No unread posts Attachment(s) What Wire for AM Loop Antenna?

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flyer92

31

728

May Thu 28, 2020 4:13 am

flyer92 View the latest post

No unread posts Attachment(s) AC radio as a drill speed controller?

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Mike Toon

27

746

May Wed 27, 2020 10:39 pm

SteveH View the latest post

No unread posts Attachment(s) My SE 12SL7 - 6V6G stereo

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Pbpix

293

10294

May Fri 22, 2020 9:12 pm

john8750 View the latest post

No unread posts Attachment(s) Pentagrid converter

M1911A1

3

739

May Thu 21, 2020 11:46 am

M1911A1 View the latest post

No unread posts Attachment(s) Homebuilt Tube Tester

retailer

5

307

May Thu 21, 2020 4:59 am

Colin Ames View the latest post

No unread posts Attachment(s) One-Dollar-Tube Guitar Amp

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mrriggs

48

11119

May Thu 21, 2020 12:35 am

mrriggs View the latest post

No unread posts Attachment(s) IC based XTAL FM Transmitter for 90MHz

Dare4444

3

241

May Wed 20, 2020 11:11 am

Dare4444 View the latest post

No unread posts Attachment(s) 12volt regen. radios

jimbob

3

356

May Wed 20, 2020 1:18 am

35Z5 View the latest post

Moved topic Moved: Subbing a 5y3gt for a 5v4 rectifier

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Michiganamps

27

753

May Sun 24, 2020 11:21 am

Don Cavey View the latest post

No unread posts Attachment(s) 12BA6 sw regen.

jimbob

10

737

May Mon 18, 2020 2:20 pm

jimbob View the latest post

No unread posts Attachment(s) Tube radio / SDR

dr pepper

7

750

May Fri 15, 2020 10:51 pm

radiotechnician View the latest post

No unread posts Always guessing

jimbob

7

418

May Thu 14, 2020 6:20 pm

Findm-Keepm View the latest post

No unread posts Attachment(s) selecting power supply caps and chokes

N0BST

2

284

May Thu 14, 2020 2:59 pm

Tom Bavis View the latest post

No unread posts Attachment(s) 4mW Crystal Locked FM Transmitter

Dare4444

0

185

May Wed 13, 2020 11:01 am

Dare4444 View the latest post

No unread posts Attachment(s) DIY Electronics Project box

The_ID_of_Ed

2

308

May Wed 13, 2020 5:02 am

Colin Ames View the latest post

No unread posts Attachment(s) Help with Homemade TRF

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Fordman

20

1051

May Tue 12, 2020 7:45 pm

LM386 View the latest post

No unread posts Transistor lead Identification

jimbob

6

459

May Mon 11, 2020 2:51 pm

electricboyo View the latest post

No unread posts Attachment(s) Plug-in Coil Winding

Ron Reeland

13

1056

May Fri 08, 2020 4:46 pm

Rich, W3HWJ View the latest post

No unread posts Attachment(s) Field strength meter questions

Macrohenry

11

554

May Fri 08, 2020 2:18 am

Macrohenry View the latest post

No unread posts Attachment(s) Homebrew amp project

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Michiganamps

25

1128

May Fri 08, 2020 1:50 am

Jim Mueller View the latest post

No unread posts Attachment(s) 1mW Super Stable FM Transmitter (Updated Design)

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Dare4444

26

841

May Wed 06, 2020 4:17 pm

Macrohenry View the latest post

No unread posts Attachment(s) TDA 7293 Chip power amplifier

Kingboy

3

258

May Sun 03, 2020 9:52 pm

Macrohenry View the latest post

Post New Topic  [ 3720 topics ]  Go to page 1, 2, 3, 4, 5 ... 75  Next

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