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Alan Voorhees

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Oct Fri 07, 2022 8:53 am

Alan Voorhees View the latest post

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Alan Voorhees

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Topics
No unread posts 100TH transmitter

arianskre

3

68

Oct Fri 07, 2022 4:33 am

arianskre View the latest post

No unread posts Outdoor FM Signal Booster

transistor495

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33

Oct Fri 07, 2022 4:24 am

alpal View the latest post

No unread posts Attachment(s) Simple Three Tube Stereo Amplifier May Need Another Tube

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Blorpcandy

63

1815

Oct Fri 07, 2022 2:25 am

battradio@ View the latest post

No unread posts Attachment(s) Changing input impedance on an amp?

Mike Toon

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168

Oct Fri 07, 2022 1:53 am

battradio@ View the latest post

No unread posts Attachment(s) Resistance and wire heat

allthumbs

11

404

Oct Wed 05, 2022 5:36 pm

infomet View the latest post

No unread posts Attachment(s) Graymark Crystal Radio modification

fifties

3

203

Oct Wed 05, 2022 3:36 pm

krystallo View the latest post

No unread posts Attachment(s) Homemade coil forms from "hair curlers"

Hue Miller

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429

Oct Wed 05, 2022 3:16 pm

err ducks View the latest post

No unread posts Attachment(s) 2N3904 circuit

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Tube Radio

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1253

Oct Tue 04, 2022 4:05 pm

Tube Radio View the latest post

No unread posts Attachment(s) Volume control setting vs. perceived loudness

allthumbs

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333

Oct Sat 01, 2022 4:58 pm

BikenSwim View the latest post

No unread posts Attachment(s) Lyonodyne Xtal radio

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alpal

22

1137

Oct Sat 01, 2022 4:31 pm

alpal View the latest post

No unread posts Attachment(s) Tuneable frame antenna

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alpal

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Oct Sat 01, 2022 4:23 pm

alpal View the latest post

No unread posts Attachment(s) Tube IF transformers

dr pepper

16

3143

Oct Sat 01, 2022 12:57 pm

dr pepper View the latest post

No unread posts Attachment(s) Wideband RF choke for Medium Wave

Vintage A

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885

Sep Fri 30, 2022 11:17 am

Vintage A View the latest post

No unread posts Attachment(s) Macrohenry Transmitter Construction

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Macrohenry

148

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Sep Fri 30, 2022 1:21 am

radiorich View the latest post

No unread posts Attachment(s) Eldon crystal radio - need photo of label

Hue Miller

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128

Sep Wed 28, 2022 4:29 am

vu2nan View the latest post

No unread posts Attachment(s) Signal Generator Add-On for Macrohenry Transmitter

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Macrohenry

32

1876

Sep Tue 27, 2022 10:40 pm

Macrohenry View the latest post

No unread posts Bulletproof SS amplifier

arianskre

3

245

Sep Tue 27, 2022 11:01 am

ACORNVALVE View the latest post

No unread posts Attachment(s) RF Pre-Amp Circuit

N2LXM

3

275

Sep Mon 26, 2022 7:04 pm

Alfredo_T View the latest post

No unread posts Attachment(s) Shortwave pre-amplifier

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alpal

20

901

Sep Sun 18, 2022 12:40 pm

alpal View the latest post

No unread posts Attachment(s) 15KHz to 160MHz PLL in 5KHz steps

Dare4444

1

177

Sep Sat 17, 2022 6:57 am

Dare4444 View the latest post

No unread posts Attachment(s) Printed Circuit AA5 based on GE 414 dial beam

Flinx

2

322

Sep Fri 16, 2022 1:08 am

Elvirafan View the latest post

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

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LM386

21

3285

Sep Tue 13, 2022 11:05 am

alpal View the latest post

No unread posts Attachment(s) FM mono circuit.

Tube Radio

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479

Sep Tue 13, 2022 3:28 am

Tube Radio View the latest post

No unread posts Norms 12K5

jimbob

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511

Sep Mon 12, 2022 4:09 pm

jimbob View the latest post

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

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Jthorusen

40

10575

Sep Mon 12, 2022 11:58 am

End80 View the latest post

No unread posts Attachment(s) Homemade 5 transistor AM superhet

szoftveres

7

420

Sep Mon 12, 2022 4:02 am

szoftveres View the latest post

No unread posts Attachment(s) Scope clock ground issue

Tube Radio

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313

Sep Fri 09, 2022 7:11 pm

Tube Radio View the latest post

No unread posts Attachment(s) Lil 7 not working

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Blake M

24

1662

Sep Fri 09, 2022 3:48 pm

35Z5 View the latest post

No unread posts Attachment(s) Panel and dial experiments

Macrohenry

3

384

Sep Wed 07, 2022 1:32 pm

ACORNVALVE View the latest post

No unread posts Extremely simple crystal radio

arianskre

16

1417

Sep Tue 06, 2022 9:56 am

alpal View the latest post

No unread posts Attachment(s) The Macrohenrydyne

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Macrohenry

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3311

Sep Sun 04, 2022 8:00 pm

LM386 View the latest post

No unread posts Attachment(s) DIY radio construction projects

Rich, W3HWJ

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828

Sep Sun 04, 2022 5:04 am

arianskre View the latest post

No unread posts Preamp build

Tube Radio

2

254

Sep Sat 03, 2022 5:41 pm

Tube Radio View the latest post

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

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6tom

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2207

Sep Fri 02, 2022 9:34 am

JGTubeamps View the latest post

No unread posts Tight tube sockets

jimbob

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274

Aug Mon 29, 2022 4:07 pm

flyboy71 View the latest post

No unread posts Attachment(s) Adjustable frequency toroid?

Mike Toon

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1293

Aug Sun 28, 2022 11:36 am

qmavam View the latest post

No unread posts Attachment(s) FM tuner not work properly

aurel

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919

Aug Sun 28, 2022 11:01 am

aurel View the latest post

No unread posts Attachment(s) Mic pre-amp ideas?

GuitarDick

4

602

Aug Tue 23, 2022 7:33 pm

Alfredo_T View the latest post

No unread posts Attachment(s) Need help identifying

robroot61

19

1860

Aug Tue 23, 2022 5:12 pm

robroot61 View the latest post

No unread posts Attachment(s) RF Preamp

YukonTV

9

878

Aug Sun 21, 2022 4:26 am

ACORNVALVE View the latest post

No unread posts Attachment(s) Push pull 6V6 amp

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Tube Radio

29

1362

Aug Sun 14, 2022 4:46 am

Tube Radio View the latest post

No unread posts Attachment(s) Zenith console mod question

Tube Radio

7

2463

Aug Fri 12, 2022 11:48 pm

Tube Radio View the latest post

No unread posts Attachment(s) Looking for two beta testers for AM Transmitter

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Macrohenry

101

13495

Aug Wed 10, 2022 6:49 pm

gearhead222 View the latest post

No unread posts Mgnavox FM tuner modification

Tube Radio

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577

Aug Mon 01, 2022 7:57 am

Tube Radio View the latest post

No unread posts Attachment(s) Three different 6888 & 6GY6 xmitt versions...

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35Z5

48

40910

Jul Fri 29, 2022 8:29 pm

skywave View the latest post

No unread posts Attachment(s) Macrohenry Transmitter Components

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processhead

74

6180

Jul Thu 28, 2022 8:47 pm

Macrohenry View the latest post

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

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xrhonda91

31

3536

Jul Wed 27, 2022 3:14 am

radiorich View the latest post

No unread posts Attachment(s) Does anyone recognize the circuit in this device?

ampstamp88

4

630

Jul Sun 24, 2022 3:31 pm

ampstamp88 View the latest post

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

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Macrohenry

147

11039

Jul Fri 22, 2022 3:22 am

ChrisW6ATV View the latest post

No unread posts Attachment(s) UX 240 Detectors

crm114

11

951

Jul Sun 17, 2022 11:10 pm

jrehkopf View the latest post

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