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Post New Topic  [ 4165 topics ]  Go to page 1, 2, 3, 4, 5 ... 84  Next
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No unread posts Attachment(s) Audio half of regen rcvr - advice?

allthumbs

10

243

May Sat 21, 2022 12:53 am

allthumbs View the latest post

No unread posts Attachment(s) Ordering PCBs: Part 15 PLL Synthesized Transmitter Board

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Macrohenry

30

729

May Fri 20, 2022 3:15 pm

Macrohenry View the latest post

No unread posts Attachment(s) Does Anyone Have Information About theradioboard.com?

LM386

17

1636

May Fri 20, 2022 3:18 am

BobWeaver View the latest post

No unread posts Attachment(s) Reflex Receiver with MOSFETs

Dare4444

0

93

May Thu 19, 2022 4:47 am

Dare4444 View the latest post

No unread posts Attachment(s) 15 watt solid state amp kit question

Tube Radio

14

409

May Wed 18, 2022 9:01 pm

Tube Radio View the latest post

No unread posts Attachment(s) Guitar amp schematic

Scota4570

9

647

May Wed 18, 2022 6:25 pm

johnnyreece View the latest post

No unread posts Extracting 5V DC from a Bias-T to power a LNA

avicci

1

94

May Wed 18, 2022 12:49 pm

richfair View the latest post

No unread posts Frequency counter

jimbob

5

229

May Tue 17, 2022 2:14 pm

ACORNVALVE View the latest post

No unread posts Another PLL FM Transmitter (3 Transistor RF Stage + PLL)

Dare4444

0

78

May Sun 15, 2022 3:50 pm

Dare4444 View the latest post

No unread posts Attachment(s) 455KHz IF oscillator with only three parts

Dare4444

4

215

May Sat 14, 2022 11:27 pm

Macrohenry View the latest post

No unread posts Attachment(s) simple space charge rf preamplifier does not work

sv3ora

17

408

May Fri 13, 2022 11:38 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Adding antenna to a ferrite rod ??

6tom

8

512

May Fri 13, 2022 6:33 pm

Tube Radio View the latest post

No unread posts Attachment(s) what is this part on this Two Transistor Reflex Radio

6tom

6

478

May Mon 09, 2022 10:56 pm

6tom View the latest post

No unread posts Attachment(s) PLL Hum Cancellation Circuit

Dare4444

4

207

May Sun 08, 2022 7:53 am

OldWireBender View the latest post

No unread posts Attachment(s) Home-made analog FET milli-Volt meter project...

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xrhonda91

30

1841

May Fri 06, 2022 6:24 pm

xrhonda91 View the latest post

No unread posts Attachment(s) Arduino as PLL Comparator replacing CD4046

Dare4444

3

193

May Fri 06, 2022 3:33 pm

richfair View the latest post

No unread posts Attachment(s) Possible audio build

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Tube Radio

23

986

May Fri 06, 2022 3:43 am

Tube Radio View the latest post

No unread posts Antique Car Stereo Bluetooth Audio Retrofit with ESP32

jcrubin

2

276

May Thu 05, 2022 10:31 pm

jcrubin View the latest post

No unread posts Attachment(s) Commercially Designed Part 15 AM Transmitter

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Jthorusen

39

9199

May Thu 05, 2022 2:37 pm

Colin Ames View the latest post

No unread posts Attachment(s) Knight Kit Remake Oscillator coil?

sberry1

17

704

May Wed 04, 2022 7:30 pm

Usually Lurking View the latest post

No unread posts Attachment(s) Why does my crystal radio design work?

6tom

12

601

May Tue 03, 2022 11:06 pm

6tom View the latest post

No unread posts Attachment(s) Looking for curved equipment enclosures

neazoi

3

228

May Tue 03, 2022 8:40 pm

sv3ora View the latest post

No unread posts Attachment(s) Hamfest Radio ID

infomet

4

378

May Mon 02, 2022 5:06 pm

infomet View the latest post

No unread posts Old school direct etch printed circuit boards

Sparks62

2

354

May Mon 02, 2022 4:17 am

hwhall View the latest post

No unread posts Attachment(s) Center tap on secondary RF coils, what purpose are they?

crabeapple

7

384

May Sun 01, 2022 9:47 pm

amyotte View the latest post

No unread posts Daves dual 6c4 sw

jimbob

2

294

Apr Sat 30, 2022 9:42 pm

mblack View the latest post

No unread posts Attachment(s) possible sources for homebrew 6 meter transceiver

forumuser

16

731

Apr Thu 28, 2022 5:38 pm

forumuser View the latest post

No unread posts Attachment(s) Building a 1Q5GT regen Radio

Michiganamps

11

732

Apr Thu 28, 2022 1:19 am

shinkuukan View the latest post

No unread posts Attachment(s) Need help identifying

robroot61

11

600

Apr Sun 24, 2022 11:22 pm

robroot61 View the latest post

No unread posts Attachment(s) Macrohenry's Full Wave Audio Compressor

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Macrohenry

50

1802

Apr Sun 24, 2022 8:33 pm

Macrohenry View the latest post

No unread posts wire for coil forms.

jake wells

8

505

Apr Fri 22, 2022 11:48 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Home-made freq counter & RF-generator unit for AM BCB radios

xrhonda91

17

2381

Apr Thu 21, 2022 6:11 am

xrhonda91 View the latest post

No unread posts Attachment(s) BM62 Bluetooth module "project"...

xrhonda91

5

506

Apr Thu 21, 2022 5:51 am

xrhonda91 View the latest post

No unread posts Attachment(s) Antique Crate/box of 20's radio parts. What can we build?

34sparton

8

739

Apr Wed 20, 2022 12:25 pm

34sparton View the latest post

No unread posts Attachment(s) SSB Tri-Bander Question

Dare4444

2

225

Apr Tue 19, 2022 3:46 am

Dare4444 View the latest post

No unread posts Attachment(s) Experimental 1-30 MHz AM Signal Generator

Dare4444

0

173

Apr Mon 18, 2022 3:24 pm

Dare4444 View the latest post

No unread posts Attachment(s) What is this a HB one tube radio.

tomb123

11

725

Apr Mon 18, 2022 5:40 am

tomb123 View the latest post

No unread posts Attachment(s) Functional difference between two different cathode circuits

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soloapollo

20

1345

Apr Mon 18, 2022 1:32 am

Marc Hildebrant View the latest post

No unread posts Attachment(s) Another way to build a stable FM TX

Dare4444

1

186

Apr Sun 17, 2022 12:28 pm

Dare4444 View the latest post

No unread posts Attachment(s) End Fed Wire Antenna + Coaxial Transformer!

Dare4444

5

314

Apr Sat 16, 2022 9:23 pm

Dare4444 View the latest post

No unread posts Attachment(s) 9V Battery Operated MW AM Transmitter

Dare4444

0

211

Apr Fri 15, 2022 5:20 pm

Dare4444 View the latest post

No unread posts Can anyone possibly help me to identify this homebrew rig?

Big Nick

11

3791

Apr Thu 14, 2022 5:58 am

mblack View the latest post

No unread posts Attachment(s) 1 - 30 MHz Universal AM Modulator

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Dare4444

35

1303

Apr Tue 12, 2022 9:18 pm

Dare4444 View the latest post

No unread posts Controlling Op Amp Output Amplitude

Macrohenry

3

271

Apr Mon 11, 2022 3:09 pm

richfair View the latest post

No unread posts Attachment(s) 2N2219A Shortwave AM Transmitter

Dare4444

4

412

Apr Sun 10, 2022 3:37 am

Dare4444 View the latest post

No unread posts Attachment(s) Simple, compact home-made audio oscillator for testing...

xrhonda91

11

569

Apr Sat 09, 2022 11:06 am

ACORNVALVE View the latest post

No unread posts Attachment(s) Arduino Audio Compressor

Dare4444

4

298

Apr Fri 08, 2022 3:58 am

richfair View the latest post

No unread posts Attachment(s) Regulator IC vs. Zener and hum

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Macrohenry

23

987

Apr Fri 08, 2022 3:13 am

richfair View the latest post

No unread posts Attachment(s) 2m 1W 2N3904 Amplifier

Dare4444

11

772

Apr Thu 07, 2022 12:02 pm

Tube Radio View the latest post

No unread posts Loop

krystallo

6

719

Apr Thu 07, 2022 2:43 am

krystallo View the latest post

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