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

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Alan Voorhees

59

25978

Apr Thu 25, 2019 10:45 pm

Dude111 View the latest post

Topics
No unread posts Attachment(s) Scope clock modification

Tube Radio

5

215

May Wed 22, 2019 7:19 pm

Tube Radio View the latest post

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

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john8750

238

4170

May Wed 22, 2019 6:37 am

Flipperhome View the latest post

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

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FStephenMasek

50

1837

May Tue 21, 2019 11:26 pm

FStephenMasek View the latest post

No unread posts Attachment(s) Trick to winding tight coils?

zarco

12

252

May Tue 21, 2019 7:11 pm

Scot Armstrong View the latest post

Moved topic Moved: good quality pots wanted!

williampage

3

134

May Wed 22, 2019 9:30 pm

pixellany View the latest post

No unread posts Attachment(s) 3 Transistor AM radio idea

BitHog

3

154

May Mon 20, 2019 2:34 pm

LM386 View the latest post

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

Buzz1151

9

621

May Mon 20, 2019 4:26 am

pauls.ironhorse View the latest post

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

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Norm Johnson

79

9725

May Sun 19, 2019 6:02 pm

Norm Johnson View the latest post

No unread posts Attachment(s) QST two tube superhet

M1911A1

10

288

May Fri 17, 2019 7:59 pm

allthumbs View the latest post

No unread posts Attachment(s) Tube Amplifier Modeling Software

FStephenMasek

14

187

May Fri 17, 2019 5:01 am

Flipperhome View the latest post

No unread posts Attachment(s) Problems with Highly Rectangular Loops ?

krystallo

5

247

May Thu 16, 2019 8:53 pm

fifties View the latest post

No unread posts Attachment(s) AM Transmitter schematic

jim campbell

12

731

May Thu 16, 2019 7:44 pm

35Z5 View the latest post

No unread posts Attachment(s) Stewart warner combination

spsquires

1

153

May Mon 13, 2019 1:07 am

spsquires View the latest post

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

oldlongwave

6

309

May Mon 13, 2019 12:39 am

Jim Mueller View the latest post

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

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upsss

50

6477

May Sun 12, 2019 5:25 pm

engineer View the latest post

No unread posts Attachment(s) Power supply redesign

Tube Radio

18

689

May Thu 09, 2019 10:58 pm

Tube Radio View the latest post

No unread posts Attachment(s) Remote tuner for a loop antenna

michael w

4

152

May Thu 09, 2019 7:49 pm

Macrohenry View the latest post

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

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Greenhorn

20

2508

May Wed 08, 2019 4:10 am

FStephenMasek View the latest post

No unread posts Attachment(s) Single-ended push-pull Better design found?

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westcoastjohn

23

577

May Mon 06, 2019 10:55 pm

radiotechnician View the latest post

No unread posts Attachment(s) coronado 650a power supply

Rich berg

15

417

May Mon 06, 2019 2:56 pm

Rich berg View the latest post

No unread posts schematic for CLC filtered power supply wanted

williampage

18

387

May Sun 05, 2019 6:32 am

Usually Lurking View the latest post

No unread posts Reproduction KNIGHT AM BROADCASTER

w0vt

2

328

May Sat 04, 2019 5:28 pm

Mike Toon View the latest post

No unread posts Attachment(s) Westinghouse H122 has new power supply.

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westcoastjohn

56

8140

May Fri 03, 2019 8:29 pm

westcoastjohn View the latest post

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

xrhonda91

16

871

May Fri 03, 2019 7:02 pm

wazz View the latest post

No unread posts Attachment(s) Low pass filter addition to amplifier

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Tube Radio

39

1383

Apr Tue 30, 2019 9:43 pm

Tube Radio View the latest post

No unread posts Attachment(s) Amplifier question

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Tube Radio

23

473

Apr Mon 29, 2019 6:49 pm

Tube Radio View the latest post

No unread posts Attachment(s) 250 volt power supply info needed.

williampage

17

885

Apr Mon 29, 2019 5:46 pm

Usually Lurking View the latest post

No unread posts Wanted: Frequency Synthesizer Schematic

Jthorusen

5

226

Apr Mon 29, 2019 1:49 am

Dare4444 View the latest post

No unread posts Attachment(s) Op Amp problems

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Dennis H.

74

1316

Apr Sun 28, 2019 6:03 pm

pauls.ironhorse View the latest post

No unread posts Calculating dropping resisitor for zener diodes

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Yeti575

20

371

Apr Thu 25, 2019 6:08 pm

upsss View the latest post

No unread posts How do bidirectional amps work?

Macrohenry

6

242

Apr Thu 25, 2019 12:35 am

Macrohenry View the latest post

No unread posts Attachment(s) AM PLL Transmitter kit

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Ed in SoDak

51

3834

Apr Tue 23, 2019 5:22 pm

Tube Radio View the latest post

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

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VanEpsFan1914

52

1550

Apr Mon 22, 2019 3:38 am

Tube Radio View the latest post

No unread posts Attachment(s) Demod probe results

allthumbs

8

292

Apr Fri 19, 2019 3:35 pm

Chas View the latest post

No unread posts Attachment(s) Tubeless FM Converter

Mike C.

4

222

Apr Thu 18, 2019 5:56 pm

pauls.ironhorse View the latest post

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

Sal Brisindi

4

220

Apr Wed 17, 2019 5:55 pm

Mike Toon View the latest post

No unread posts Attachment(s) AM flat loop antenna

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neondave

28

1207

Apr Fri 12, 2019 6:55 am

db gain View the latest post

No unread posts Attachment(s) CRT circuit question

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Tube Radio

47

3668

Apr Fri 05, 2019 4:18 am

Tube Radio View the latest post

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

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benman94

24

919

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

490

Apr Mon 01, 2019 7:47 pm

35Z5 View the latest post

No unread posts Layout and Routing

rmileham

5

219

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

651

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

632

Apr Mon 01, 2019 2:32 am

Tube Radio View the latest post

No unread posts 1CP1 scope tube

Tube Radio

10

4122

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

378

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

7698

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

1449

Mar Sat 30, 2019 3:49 am

Tube Radio View the latest post

No unread posts Attachment(s) Stacking Transformers

Michael Janis

1

269

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

16478

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

370

Mar Mon 25, 2019 3:58 am

Elvirafan View the latest post

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