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Alan Voorhees

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Alan Voorhees View the latest post

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Alan Voorhees

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ttx450cap View the latest post

Topics
No unread posts Attachment(s) Resistance and wire heat

allthumbs

1

55

Oct Sat 01, 2022 8:04 pm

Tom Bavis View the latest post

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

allthumbs

5

237

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

1065

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

22

819

Oct Sat 01, 2022 4:23 pm

alpal View the latest post

No unread posts Attachment(s) Tube IF transformers

dr pepper

16

3058

Oct Sat 01, 2022 12:57 pm

dr pepper View the latest post

No unread posts Attachment(s) 2N3904 circuit

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Tube Radio

34

990

Sep Fri 30, 2022 11:10 pm

Alfredo_T View the latest post

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

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Blorpcandy

59

1596

Sep Fri 30, 2022 7:35 pm

Alfredo_T View the latest post

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

Vintage A

15

774

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

8233

Sep Fri 30, 2022 1:21 am

radiorich View the latest post

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

Hue Miller

6

305

Sep Thu 29, 2022 10:30 am

k6sti View the latest post

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

Hue Miller

1

104

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

1836

Sep Tue 27, 2022 10:40 pm

Macrohenry View the latest post

No unread posts Bulletproof SS amplifier

arianskre

3

214

Sep Tue 27, 2022 11:01 am

ACORNVALVE View the latest post

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

N2LXM

3

253

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

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879

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

160

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

310

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

3256

Sep Tue 13, 2022 11:05 am

alpal View the latest post

No unread posts Attachment(s) FM mono circuit.

Tube Radio

5

456

Sep Tue 13, 2022 3:28 am

Tube Radio View the latest post

No unread posts Norms 12K5

jimbob

3

493

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

10543

Sep Mon 12, 2022 11:58 am

End80 View the latest post

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

szoftveres

7

394

Sep Mon 12, 2022 4:02 am

szoftveres View the latest post

No unread posts Attachment(s) Scope clock ground issue

Tube Radio

4

302

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

1639

Sep Fri 09, 2022 3:48 pm

35Z5 View the latest post

No unread posts Attachment(s) Panel and dial experiments

Macrohenry

3

375

Sep Wed 07, 2022 1:32 pm

ACORNVALVE View the latest post

No unread posts Extremely simple crystal radio

arianskre

16

1363

Sep Tue 06, 2022 9:56 am

alpal View the latest post

No unread posts Attachment(s) The Macrohenrydyne

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Macrohenry

26

3287

Sep Sun 04, 2022 8:00 pm

LM386 View the latest post

No unread posts Attachment(s) DIY radio construction projects

Rich, W3HWJ

5

816

Sep Sun 04, 2022 5:04 am

arianskre View the latest post

No unread posts Preamp build

Tube Radio

2

245

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

20

2188

Sep Fri 02, 2022 9:34 am

JGTubeamps View the latest post

No unread posts Tight tube sockets

jimbob

1

264

Aug Mon 29, 2022 4:07 pm

flyboy71 View the latest post

No unread posts Attachment(s) Adjustable frequency toroid?

Mike Toon

13

1252

Aug Sun 28, 2022 11:36 am

qmavam View the latest post

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

aurel

14

906

Aug Sun 28, 2022 11:01 am

aurel View the latest post

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

GuitarDick

4

597

Aug Tue 23, 2022 7:33 pm

Alfredo_T View the latest post

No unread posts Attachment(s) Need help identifying

robroot61

19

1853

Aug Tue 23, 2022 5:12 pm

robroot61 View the latest post

No unread posts Attachment(s) RF Preamp

YukonTV

9

872

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

1346

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

2453

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

13425

Aug Wed 10, 2022 6:49 pm

gearhead222 View the latest post

No unread posts Mgnavox FM tuner modification

Tube Radio

3

567

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

40839

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

6115

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

3513

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

616

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

10958

Jul Fri 22, 2022 3:22 am

ChrisW6ATV View the latest post

No unread posts Attachment(s) UX 240 Detectors

crm114

11

939

Jul Sun 17, 2022 11:10 pm

jrehkopf View the latest post

No unread posts Radio Dial Reduction drives ("vernier")

Rich, W3HWJ

1

397

Jul Sat 16, 2022 9:39 am

ACORNVALVE View the latest post

No unread posts Tubes and magnetic fields

Brian VE7JKZ

7

653

Jul Wed 13, 2022 10:22 pm

BikenSwim View the latest post

No unread posts Silicon point contact diode

Vintage A

15

870

Jul Wed 13, 2022 7:14 pm

Vintage A View the latest post

No unread posts Attachment(s) perturb and observe home brew circuit

rchiapparelli

7

905

Jul Tue 12, 2022 11:22 am

richfair View the latest post

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