Antique Radio Forums • View forum - Homebrew Radios and Equipment

134

6453

Jul Tue 05, 2022 6:11 am

Jschuster

Macrohenry Transmitter Construction

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1369

Jul Mon 04, 2022 8:13 pm

Macrohenry Transmitter Components

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processhead

2643

Jul Mon 04, 2022 4:48 am

Looking for two beta testers for AM Transmitter

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10264

Jul Sat 02, 2022 4:00 am

Telephone Interface Suggestions Sought

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telegrapher

1447

Jul Fri 01, 2022 5:41 am

Usually Lurking

JFET Testing and Matching

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Frank512

1243

Jun Thu 30, 2022 8:38 pm

OldWireBender

Crystal radio phasing

Mike Toon

202

Jun Wed 29, 2022 10:05 pm

KB4QAA

Why does my crystal radio design work?

1205

Jun Wed 29, 2022 4:25 pm

battradio@

Winding Antenna Coils

crm114

540

Jun Mon 27, 2022 7:14 pm

err ducks

Anyone recognize this 3-tube homebrew?

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1N770

2302

Jun Mon 27, 2022 7:12 am

pehamel

455KHz IF oscillator with only three parts

664

Jun Thu 23, 2022 5:22 pm

maxequat

Zenith console mod question

1901

Jun Mon 20, 2022 6:57 pm

Magnavox AMP-142AB restore and mods

1661

Jun Mon 20, 2022 3:57 am

Antique Car Stereo Bluetooth Audio Retrofit with ESP32

jcrubin

417

Jun Sat 18, 2022 12:42 am

jcrubin

A.M. BROADCASTER: MORE PROBLEMS

catsimon

453

Jun Fri 17, 2022 2:54 pm

Tim Tress

Mic pre-amp ideas?

GuitarDick

216

Jun Fri 17, 2022 2:03 am

wazz

Some of my work on one-tube transmitters

K6RRE

400

Jun Thu 16, 2022 2:55 pm

forumuser

Hat Radio replica

jtn050

532

Jun Tue 14, 2022 11:59 pm

Mr. Detrola

Audio half of regen rcvr - advice?

allthumbs

905

Jun Tue 14, 2022 6:30 pm

allthumbs

What Is It With 2 4 8 16 Pill RF Amps??

Yorkman

540

Jun Tue 14, 2022 3:56 pm

K4PIH

Hey Thumbs

231

Jun Tue 14, 2022 1:20 am

allthumbs

Homebrew tube lighting counter

sv3ora

412

Jun Mon 13, 2022 11:00 pm

Semi-universal replacement

Kim N.

478

Jun Sun 12, 2022 10:37 pm

mblack

Does Anyone Have Information About theradioboard.com?

LM386

2253

Jun Sun 12, 2022 8:41 am

aurel

New transmitter

Tatem180

459

Jun Fri 10, 2022 9:22 pm

Colin Ames

Audio Output Transformer choices

Scota4570

328

Jun Thu 09, 2022 5:43 pm

battradio@

Dave's 1D8GT

633

Jun Wed 08, 2022 9:18 pm

Can you over filter a power supply?

Mike Toon

1124

Jun Wed 08, 2022 4:32 am

Pbpix

Long wire ( random wire) and ground proximity

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poulsbobill

18252

Jun Sun 05, 2022 11:38 pm

Marcc

Guitar amp schematic

Scota4570

1121

Jun Fri 03, 2022 8:23 pm

NW2K

Low voltage tube crystal oscillator ALC

neazoi

345

Jun Fri 03, 2022 2:32 am

Jim Mueller

Interesting noise blanking circuit

191

Jun Thu 02, 2022 12:46 am

Center tap on secondary RF coils, what purpose are they?

crabeapple

777

May Tue 31, 2022 7:12 pm

infomet

UNUNs, lightning arrestors but for MW

sgath92

395

May Tue 31, 2022 4:23 pm

madlabs

New FM PLL idea

225

May Mon 30, 2022 11:29 am

Need help identifying

robroot61

1075

May Sun 29, 2022 4:39 pm

robroot61

Reflex Receiver with MOSFETs

370

May Wed 25, 2022 7:05 pm

OldWireBender

D shaped variable capacitor shafts

346

May Wed 25, 2022 4:29 pm

Mike Toon

Can anyone possibly help me to identify this homebrew rig?

Big Nick

4136

May Wed 25, 2022 6:10 am

john8750

control amp for a 300B

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john8750

103

7194

May Wed 25, 2022 5:58 am

john8750

Frequency counter

531

May Mon 23, 2022 4:31 pm

mblack

15 watt solid state amp kit question

734

May Wed 18, 2022 9:01 pm

Extracting 5V DC from a Bias-T to power a LNA

avicci

213

May Wed 18, 2022 12:49 pm

richfair

Another PLL FM Transmitter (3 Transistor RF Stage + PLL)

186

May Sun 15, 2022 3:50 pm

simple space charge rf preamplifier does not work

sv3ora

640

May Fri 13, 2022 11:38 pm

ACORNVALVE

Adding antenna to a ferrite rod ??

722

May Fri 13, 2022 6:33 pm

what is this part on this Two Transistor Reflex Radio

666

May Mon 09, 2022 10:56 pm

PLL Hum Cancellation Circuit