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Post New Topic  [ 3576 topics ]  Go to page 1, 2, 3, 4, 5 ... 72  Next
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No unread posts Attachment(s) Another Tuned Loop Antenna

moallen

17

230

Dec Sat 14, 2019 3:52 pm

moallen View the latest post

No unread posts Attachment(s) Attempting to build a low voltage tube amplifier

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928GTS

34

1229

Dec Sat 14, 2019 4:00 am

shinkuukan View the latest post

No unread posts Attachment(s) Homebrew 4-H radio

vandallen

4

239

Dec Fri 13, 2019 9:40 pm

Macrohenry View the latest post

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

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Norm Johnson

106

15701

Dec Fri 13, 2019 3:10 am

infomet View the latest post

No unread posts Part 15 Transmitter using VCA?

Macrohenry

3

686

Dec Wed 11, 2019 2:28 pm

Tube Radio View the latest post

No unread posts High Voltage Switch Mode Power Supply

transoceanic 8523

4

121

Dec Wed 11, 2019 11:12 am

fifties View the latest post

No unread posts Attachment(s) 3 tube superhet

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azenithnut

27

4237

Dec Wed 11, 2019 11:02 am

fifties View the latest post

No unread posts Power supply switching with OA2

Norm Johnson

3

233

Dec Tue 10, 2019 7:56 pm

Peter Bertini View the latest post

No unread posts Need Plans For A Radio Chassis Cradle/Jig

transoceanic 8523

2

138

Dec Mon 09, 2019 2:26 pm

Scott View the latest post

No unread posts Attachment(s) Talking House AM Transmitter MODIFICATION IDEAS HELP?

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gmcjetpilot

105

54413

Dec Mon 09, 2019 12:49 pm

moallen View the latest post

No unread posts Attachment(s) relay contact snubber

forumuser

15

531

Dec Sun 08, 2019 4:05 am

forumuser View the latest post

No unread posts Attachment(s) Another Mystery Mini Audio Amp, I Think?

jandajr

1

206

Dec Sat 07, 2019 7:06 pm

forumuser View the latest post

No unread posts Are new potentiometers not very well made?

htolino

9

631

Dec Sat 07, 2019 12:43 am

forumuser View the latest post

No unread posts Attachment(s) Two SPST push buttons to knob SPDT control?

ThomasMBS

5

224

Dec Fri 06, 2019 6:08 pm

Macrohenry View the latest post

No unread posts Attachment(s) Dekatron spinner circuit and other neon circuits

Tube Radio

3

434

Dec Thu 05, 2019 6:32 pm

Tube Radio View the latest post

No unread posts SEIBT 31

markolord95

1

309

Dec Wed 04, 2019 1:19 pm

Johnnysan View the latest post

No unread posts Attachment(s) Old radio

radiorich123

2

275

Dec Tue 03, 2019 9:56 pm

Pbpix View the latest post

No unread posts Attachment(s) Mystery audio amp?

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Sick Dog

20

765

Dec Tue 03, 2019 6:41 pm

Sick Dog View the latest post

No unread posts Attachment(s) 2mW Frequency stable FM Transmitter Circuit

Dare4444

19

547

Dec Mon 02, 2019 9:00 pm

forumuser View the latest post

No unread posts Attachment(s) Superregen Shortwave Receiver With Improved Selectivity

LM386

4

412

Dec Mon 02, 2019 6:33 am

LM386 View the latest post

No unread posts Attachment(s) Need Help "Super-Regenerative FM Receiver

transoceanic 8523

12

414

Nov Thu 28, 2019 5:06 am

BobWeaver View the latest post

No unread posts Attachment(s) BC-455A power supply/amplifier question

Tube Radio

7

267

Nov Thu 28, 2019 1:53 am

Tube Radio View the latest post

No unread posts Attachment(s) Help troubleshooting regenerative receiver

KC2SIZ

4

300

Nov Wed 27, 2019 11:04 pm

infzqi View the latest post

No unread posts Attachment(s) Simple High Performance Shortwave Regenerative Receiver

[ Go to pageGo to page: 1, 2 ]

LM386

30

2189

Nov Fri 22, 2019 10:16 pm

infzqi View the latest post

No unread posts Learning while building and exploring 1920s radio technology

NW2K

1

389

Nov Fri 22, 2019 1:47 pm

KA8GEF View the latest post

No unread posts Attachment(s) Telequipment D-54 lamp mod

Tube Radio

19

975

Nov Tue 19, 2019 3:16 pm

Tube Radio View the latest post

No unread posts Attachment(s) BC-455A BFO

Tube Radio

9

1003

Nov Mon 18, 2019 5:14 am

Tube Radio View the latest post

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

Tube Radio

4

926

Nov Mon 18, 2019 4:44 am

Tube Radio View the latest post

No unread posts Attachment(s) Sources for Microwave oven transformer

Tube Radio

11

433

Nov Sun 17, 2019 8:21 pm

Tube Radio View the latest post

No unread posts AM Detector Using A Zero Bias Schottky Diode

Frank512

18

778

Nov Fri 15, 2019 8:46 am

BobWeaver View the latest post

No unread posts Attachment(s) Anyone have Tom Guests vibrator schematic from long ago?

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tbone8

66

4748

Nov Thu 14, 2019 4:26 pm

Usually Lurking View the latest post

No unread posts Attachment(s) Variable frequency sawtooth generator

Tube Radio

17

1156

Nov Thu 14, 2019 1:57 am

Tube Radio View the latest post

No unread posts Attachment(s) Heathkit HP-23 power supply mod

forumuser

5

580

Nov Thu 07, 2019 1:52 pm

forumuser View the latest post

No unread posts Attachment(s) Another Loop Antenna Crystal Radio

vu2nan

16

828

Nov Mon 04, 2019 6:27 am

vu2nan View the latest post

No unread posts Attachment(s) First tube radio [WIP]

Chryseus

8

1600

Nov Sun 03, 2019 9:44 pm

Scot Armstrong View the latest post

No unread posts Attachment(s) Sylvania RM-300X external audio input mod

Tube Radio

0

377

Nov Sat 02, 2019 10:55 pm

Tube Radio View the latest post

No unread posts Attachment(s) Working on a AM transmitter prototype

[ Go to pageGo to page: 1, 2 ]

MonkeyPaws

28

1853

Oct Thu 31, 2019 10:28 am

MonkeyPaws View the latest post

No unread posts Turning a novelty AM radio as a speakerphone/media player

retro-pc_user

1

494

Oct Tue 29, 2019 1:32 pm

retro-pc_user View the latest post

No unread posts Someone's older home brew. Published recipe?

uncle_Bob

1

660

Oct Tue 29, 2019 1:17 am

Leno Pederson View the latest post

No unread posts Attachment(s) Modulation: Need informations about double control pentodes

Edi

1

419

Oct Mon 28, 2019 10:09 pm

35Z5 View the latest post

No unread posts Attachment(s) 12 Volt EF97 shortwacve superhet

nico

4

1940

Oct Mon 28, 2019 7:29 pm

akrohn View the latest post

No unread posts hookup wire stock for homebrew equipment and radio repair

N0BST

7

728

Oct Sat 26, 2019 1:42 am

Scot Armstrong View the latest post

No unread posts Audio Circuits Employing Darlington Transistors

transoceanic 8523

12

820

Oct Thu 24, 2019 10:32 pm

transoceanic 8523 View the latest post

No unread posts Attachment(s) Scope clock

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Tube Radio

27

4079

Oct Tue 22, 2019 2:13 am

Tube Radio View the latest post

No unread posts Attachment(s) CLC filter questions.

williampage

10

781

Oct Mon 21, 2019 2:35 am

infzqi View the latest post

No unread posts DC to DC Boost Converter "Adding More Filter Capacitors"

transoceanic 8523

5

358

Oct Sun 20, 2019 6:54 pm

transoceanic 8523 View the latest post

No unread posts 3-channel Am Transmitter 1mhz 3mhz 5mhz $16

Mike Toon

13

1123

Oct Sat 19, 2019 2:34 am

Mike Toon View the latest post

No unread posts Attachment(s) One Tube Preamp

transoceanic 8523

10

943

Oct Tue 15, 2019 7:46 pm

westcoastjohn View the latest post

No unread posts How tall is Ramsey FM100B Antenna, from top of cabinet ?

oregonwinger73

14

856

Oct Mon 14, 2019 3:22 am

oregonwinger73 View the latest post

No unread posts One-Tube Radio Suggestions / Schematic

k2glo

8

640

Oct Thu 10, 2019 3:20 am

k2glo View the latest post

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