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Announcements
No unread posts Attachment(s) We're back ... What happened.

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Alan Voorhees

57

15657

Apr Tue 16, 2019 8:29 pm

kb2wig View the latest post

Topics
No unread posts Attachment(s) AM Transmitter schematic

jim campbell

3

76

Apr Mon 22, 2019 1:17 am

easyrider8 View the latest post

No unread posts How do bidirectional amps work?

Macrohenry

5

82

Apr Sun 21, 2019 4:27 pm

Macrohenry View the latest post

No unread posts Attachment(s) Homebrew 1920s-'30s record player...I'm clueless. Ideas?

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VanEpsFan1914

51

1224

Apr Sun 21, 2019 3:52 pm

VanEpsFan1914 View the latest post

No unread posts Attachment(s) Amplifier question

Tube Radio

15

102

Apr Sun 21, 2019 1:39 pm

Tube Radio View the latest post

No unread posts Attachment(s) Another Little Prince- tube preamp

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john8750

197

2458

Apr Sat 20, 2019 9:50 pm

john8750 View the latest post

No unread posts Is there a ferrite rod/material for use on HF frequencies?

oldlongwave

4

130

Apr Sat 20, 2019 12:47 am

BobWeaver View the latest post

No unread posts Attachment(s) Demod probe results

allthumbs

8

182

Apr Fri 19, 2019 3:35 pm

Chas View the latest post

No unread posts Attachment(s) Tubeless FM Converter

Mike C.

4

135

Apr Thu 18, 2019 5:56 pm

pauls.ironhorse View the latest post

No unread posts Attachment(s) AM PLL Transmitter kit

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Ed in SoDak

46

3386

Apr Thu 18, 2019 3:06 pm

khutch View the latest post

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

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Norm Johnson

71

8858

Apr Thu 18, 2019 3:33 am

Norm Johnson View the latest post

No unread posts Attachment(s) Metered soft start with digital meter

Sal Brisindi

4

145

Apr Wed 17, 2019 5:55 pm

Mike Toon View the latest post

No unread posts Attachment(s) Super-Duper Simple single-FET external AM-BCB booster...

xrhonda91

11

583

Apr Sat 13, 2019 3:46 pm

xrhonda91 View the latest post

No unread posts Attachment(s) Building the Stancor Williamson Amp: 807 PP

Greenhorn

16

2184

Apr Sat 13, 2019 5:11 am

Greenhorn View the latest post

No unread posts Making a 1937 Airline radio chassis now on Youtube

Buzz1151

6

451

Apr Fri 12, 2019 10:34 pm

Buzz1151 View the latest post

No unread posts Attachment(s) Op Amp problems

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Dennis H.

72

963

Apr Fri 12, 2019 2:28 pm

pixellany View the latest post

No unread posts Attachment(s) AM flat loop antenna

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neondave

28

982

Apr Fri 12, 2019 6:55 am

db gain View the latest post

No unread posts schematic for CLC filtered power supply wanted

williampage

14

232

Apr Sun 07, 2019 6:21 pm

OldWireBender View the latest post

No unread posts Attachment(s) CRT circuit question

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Tube Radio

47

3476

Apr Fri 05, 2019 4:18 am

Tube Radio View the latest post

No unread posts 250 volt power supply info needed.

williampage

15

715

Apr Thu 04, 2019 1:47 am

Rich, W3HWJ View the latest post

No unread posts Attachment(s) Questions about Laplace transforms in LTSpice.

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benman94

24

763

Apr Mon 01, 2019 9:31 pm

benman94 View the latest post

No unread posts Attachment(s) AA5's on 24v wall transformers

jimsp

6

416

Apr Mon 01, 2019 7:47 pm

35Z5 View the latest post

No unread posts Layout and Routing

rmileham

5

181

Apr Mon 01, 2019 7:44 pm

flyboy71 View the latest post

No unread posts Attachment(s) Poll: Preparing for a Circlotron amplifier build - 6V6 vs 6BG6G?

benman94

14

561

Apr Mon 01, 2019 5:21 pm

benman94 View the latest post

No unread posts Attachment(s) DIY Bluetooth to AM With Off The Shelf Parts

lewiss

9

553

Apr Mon 01, 2019 2:32 am

Tube Radio View the latest post

No unread posts 1CP1 scope tube

Tube Radio

10

4019

Apr Mon 01, 2019 2:15 am

Tube Radio View the latest post

No unread posts Attachment(s) To ground or not to ground

breadbox

7

300

Mar Sun 31, 2019 5:05 am

westcoastjohn View the latest post

No unread posts Attachment(s) Tim's AM tube transmitter build

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TV MAN

79

7296

Mar Sat 30, 2019 3:57 pm

infzqi View the latest post

No unread posts Attachment(s) AM transmitter question

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Tube Radio

60

1204

Mar Sat 30, 2019 3:49 am

Tube Radio View the latest post

No unread posts Attachment(s) Stacking Transformers

Michael Janis

1

232

Mar Sat 30, 2019 12:28 am

westcoastjohn View the latest post

No unread posts Attachment(s) Ferrite Sleeve Loop antennas: Are they for real?

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pentagrid

51

16163

Mar Wed 27, 2019 4:35 am

BobWeaver View the latest post

No unread posts Attachment(s) Tube circuits on copper clad board

allthumbs

10

316

Mar Mon 25, 2019 3:58 am

Elvirafan View the latest post

No unread posts Attachment(s) 12AV6-12CS6 Transmitter(Revised Schematic)

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35Z5

687

141314

Mar Sun 24, 2019 3:39 pm

bill hamre View the latest post

Moved topic Moved: Inexpensive spectrum analyzer GQ EMF-380 V2

KA

0

163

Mar Sun 24, 2019 5:13 am

KA View the latest post

No unread posts Antique Earphones

onlyrick

9

564

Mar Fri 22, 2019 4:17 am

VanEpsFan1914 View the latest post

No unread posts Attachment(s) My Solid State Magic Eye

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upsss

49

6005

Mar Wed 20, 2019 9:26 pm

anchorman View the latest post

No unread posts Attachment(s) Signal tracer question.

Wrenchtwister

4

417

Mar Tue 19, 2019 5:28 am

LM386 View the latest post

No unread posts Attachment(s) Power supply redesign

Tube Radio

10

454

Mar Tue 19, 2019 12:57 am

Tube Radio View the latest post

No unread posts My four transistor FMTX

Dare4444

19

610

Mar Sun 17, 2019 6:49 pm

Dare4444 View the latest post

No unread posts Attachment(s) LM386N MK-XI BCB Transmitter

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35Z5

973

176054

Mar Sun 17, 2019 6:32 am

radiorich View the latest post

No unread posts Attachment(s) Homebrew pin to phone plug adapter

crgrbrts

1

203

Mar Fri 15, 2019 3:05 pm

processhead View the latest post

No unread posts Attachment(s) Infinite impedance detector radio project(s)...

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xrhonda91

28

15138

Mar Mon 11, 2019 4:45 pm

xrhonda91 View the latest post

No unread posts Attachment(s) Tube Biasing Question

ErikD

9

458

Mar Sun 10, 2019 5:17 pm

Usually Lurking View the latest post

No unread posts Attachment(s) Din Cable for Telefunken Jubilate Delux

C1wlou

3

192

Mar Sat 09, 2019 5:24 am

majoco View the latest post

No unread posts Attachment(s) 807 Williamson amp

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john8750

1105

39893

Mar Fri 08, 2019 12:16 am

john8750 View the latest post

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

Tube Radio

8

330

Mar Thu 07, 2019 12:41 am

shinkuukan View the latest post

No unread posts Attachment(s) How about this 6L6 amplifier

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FStephenMasek

42

1475

Mar Tue 05, 2019 5:21 am

FStephenMasek View the latest post

No unread posts Attachment(s) Stereo unbalanced to mono balanced adapter

Tube Radio

13

327

Mar Sun 03, 2019 6:28 am

Tube Radio View the latest post

No unread posts Attachment(s) My two transistor FMTX

Dare4444

17

2508

Mar Sat 02, 2019 9:09 pm

Dare4444 View the latest post

No unread posts Attachment(s) Scope clock

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Tube Radio

26

2468

Feb Tue 26, 2019 4:39 pm

Tube Radio View the latest post

No unread posts Attachment(s) AM transmitter reboot

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boogieman

21

1246

Feb Mon 25, 2019 8:54 pm

boogieman View the latest post

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