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No unread posts Attachment(s) Electroluminescent panel lighting

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Tube Radio

21

282

Jul Fri 19, 2019 3:49 pm

Macrohenry View the latest post

No unread posts Subminiature Pentode and Dual Triode Transceiver

RCAProduction

2

129

Jul Fri 19, 2019 7:41 am

RCAProduction View the latest post

No unread posts Attachment(s) Balanced audio mod

Tube Radio

11

473

Jul Thu 18, 2019 11:59 pm

Tube Radio View the latest post

No unread posts Fringe howl and grid leak resistors.

Rob Lenski

9

2302

Jul Thu 18, 2019 8:18 pm

infzqi View the latest post

No unread posts Attachment(s) This kid paid attention in shop class...

decotronix

6

632

Jul Wed 17, 2019 7:00 pm

Tim Tress View the latest post

No unread posts Attachment(s) LED power light causing 2mHz interference?

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tbone8

20

486

Jul Wed 17, 2019 2:31 pm

khutch View the latest post

No unread posts Attachment(s) Single ended 6L6 amplifier

Erich Loepke

16

546

Jul Tue 16, 2019 8:46 pm

Pbpix View the latest post

No unread posts Colpitts Oscillator Tesla Coil

Tube_Enthusiast

4

227

Jul Mon 15, 2019 10:54 pm

Rich, W3HWJ View the latest post

No unread posts magnet re-magnitizer question

Tube Radio

13

514

Jul Thu 11, 2019 11:21 am

Tube Radio View the latest post

No unread posts Attachment(s) untuned rf amplifier for a regen receiver

williampage

5

322

Jul Mon 08, 2019 5:15 pm

Scot Armstrong View the latest post

No unread posts Attachment(s) One Tube Receiver

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Als_Basement

20

886

Jul Mon 08, 2019 4:04 pm

Olden Broak View the latest post

No unread posts Attachment(s) 30 dB Gain Broadband Amp

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Macrohenry

22

688

Jul Mon 08, 2019 12:03 am

Macrohenry View the latest post

No unread posts Attachment(s) Small tube amp

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mustagcoupe

40

666

Jul Sat 06, 2019 4:46 am

westcoastjohn View the latest post

No unread posts What to do with two transformers?

FStephenMasek

2

342

Jul Fri 05, 2019 1:47 am

radiotechnician View the latest post

No unread posts Attachment(s) Circuit question

Tube Radio

13

333

Jul Thu 04, 2019 4:30 pm

Tube Radio View the latest post

No unread posts Attachment(s) Eye tube circuit

Tube Radio

6

249

Jul Wed 03, 2019 7:05 pm

Tube Radio View the latest post

No unread posts The Simplex X Super (clever design)

10.7Megahertz

2

341

Jul Tue 02, 2019 11:55 am

battery-maker View the latest post

No unread posts Zenith K731 Refurbish - Update! (GIANT PHOTOS)

tfest

2

312

Jun Fri 28, 2019 5:46 pm

Tube Radio View the latest post

No unread posts Attachment(s) DC SW RECEIVER

aurel

6

502

Jun Thu 27, 2019 5:33 pm

aurel View the latest post

No unread posts Anyone here used an arduino and/or raspberry pi for a radio?

Keeta

12

561

Jun Thu 27, 2019 10:57 am

eduardoa View the latest post

No unread posts Ampex output transformers for DIY amp build

madlabs

7

312

Jun Wed 26, 2019 11:51 pm

madlabs View the latest post

No unread posts Attachment(s) Direct conversion receiver tips?

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zarco

23

1021

Jun Tue 25, 2019 1:58 am

avictor View the latest post

No unread posts Attachment(s) LOW NOISE SW REGEN RECEIVER

aurel

0

206

Jun Mon 24, 2019 6:41 pm

aurel View the latest post

Moved topic Attachment(s) Moved: octal equivelent to a 12AT7 tube?

williampage

8

772

Jul Sat 13, 2019 8:07 am

radiotechnician View the latest post

No unread posts R390A speaker match DIY

TDane

7

311

Jun Fri 21, 2019 8:17 pm

nash View the latest post

No unread posts little machine screws info.

williampage

1

224

Jun Thu 20, 2019 11:26 pm

avictor View the latest post

No unread posts Switch mode power supply help

Tube Radio

2

174

Jun Thu 20, 2019 3:36 pm

Tube Radio View the latest post

No unread posts Attachment(s) Wanted: Frequency Synthesizer Schematic

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Jthorusen

31

1069

Jun Tue 18, 2019 8:46 am

Jthorusen View the latest post

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

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Norm Johnson

87

11092

Jun Mon 17, 2019 2:10 am

Norm Johnson View the latest post

Moved topic Moved: Atwater Kent Tuning Accuracy

CR220

6

333

Jun Tue 18, 2019 4:32 pm

lorenz200w View the latest post

No unread posts Attachment(s) Modulation monitor circuit question

Tube Radio

8

329

Jun Thu 13, 2019 1:47 pm

Tube Radio View the latest post

No unread posts First tube radio [WIP]

Chryseus

5

428

Jun Sun 09, 2019 3:47 pm

Chryseus View the latest post

No unread posts Attachment(s) QST two tube superhet

M1911A1

14

826

Jun Sat 08, 2019 1:22 pm

Dennis Banker View the latest post

No unread posts Attachment(s) Decent FM band tube preamplifier?

benman94

10

488

Jun Sat 08, 2019 3:14 am

Indiana Radios View the latest post

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

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john8750

287

6976

Jun Fri 07, 2019 12:03 am

john8750 View the latest post

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

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FStephenMasek

62

2868

Jun Thu 06, 2019 8:49 pm

FStephenMasek View the latest post

No unread posts sylvania 302 polymeter with Hot chassis

Airwavesantiques

6

287

Jun Tue 04, 2019 3:31 pm

stevebyan View the latest post

No unread posts Attachment(s) Tube Amplifier Modeling Software

FStephenMasek

18

512

May Fri 24, 2019 4:36 pm

benman94 View the latest post

No unread posts Attachment(s) Amplifier question

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Tube Radio

24

719

May Fri 24, 2019 3:31 pm

Tube Radio View the latest post

No unread posts Attachment(s) Scope clock modification

Tube Radio

5

388

May Wed 22, 2019 7:19 pm

Tube Radio View the latest post

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

zarco

12

551

May Tue 21, 2019 7:11 pm

Scot Armstrong View the latest post

Moved topic Moved: good quality pots wanted!

williampage

4

432

May Wed 22, 2019 10:28 pm

Barry H Bennett View the latest post

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

BitHog

3

392

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

848

May Mon 20, 2019 4:26 am

pauls.ironhorse View the latest post

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

krystallo

5

411

May Thu 16, 2019 8:53 pm

fifties View the latest post

No unread posts Attachment(s) AM Transmitter schematic

jim campbell

12

1016

May Thu 16, 2019 7:44 pm

35Z5 View the latest post

No unread posts Attachment(s) Stewart warner combination

spsquires

1

242

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

466

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

7387

May Sun 12, 2019 5:25 pm

engineer View the latest post

No unread posts Attachment(s) Power supply redesign

Tube Radio

18

1042

May Thu 09, 2019 10:58 pm

Tube Radio View the latest post

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