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Post New Topic  [ 3028 topics ]  Go to page Previous  1, 2, 3, 4, 5 ... 61  Next
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No unread posts 150 VDC Lambda power supply?

jack.estes

2

402

Feb Sat 18, 2017 2:24 am

jack.estes View the latest post

No unread posts Norms 12K5 Regen Complete

[ Go to pageGo to page: 1, 2, 3 ]

35Z5

55

21964

Feb Mon 13, 2017 7:36 pm

fortney View the latest post

No unread posts Attachment(s) Question about frequency response of homebrewed projects

jack.estes

6

690

Feb Mon 13, 2017 1:39 am

jack.estes View the latest post

No unread posts Attachment(s) Uses for mostly junk tubes...

35Z5

7

915

Feb Sun 12, 2017 10:48 am

BobWeaver View the latest post

No unread posts Attachment(s) HV Power Supply Project

udornf4

3

902

Feb Sat 11, 2017 2:34 pm

udornf4 View the latest post

No unread posts Need Help on AR-67 Driver (HORN) Driver

joybird

0

346

Feb Thu 09, 2017 3:32 pm

joybird View the latest post

No unread posts Attachment(s) Anything special about this DIY 6 tube 3-dialer?

AuroraOldRadios

6

838

Feb Thu 09, 2017 12:49 am

AuroraOldRadios View the latest post

No unread posts Ground lift vs Transformer

Macrohenry

2

477

Feb Wed 08, 2017 2:58 am

richfair View the latest post

No unread posts '26 Tube not suitable for a detector

[ Go to pageGo to page: 1, 2 ]

too-bamp

33

1664

Feb Mon 06, 2017 5:47 pm

too-bamp View the latest post

No unread posts Attachment(s) MC1306

tjugofyra

5

505

Feb Mon 06, 2017 5:08 pm

tjugofyra View the latest post

No unread posts Hallicrafters S-41W audio mods

Tube Radio

5

1722

Feb Thu 02, 2017 11:23 pm

Tube Radio View the latest post

No unread posts Attachment(s) "Bigger Bass from Broadcast Sets"

mbear2k

2

578

Feb Thu 02, 2017 3:05 am

Tim Tress View the latest post

No unread posts Attachment(s) Home Made Probes

N2LXM

3

743

Feb Wed 01, 2017 7:35 pm

N2LXM View the latest post

No unread posts Attachment(s) Lil 7 AM Transmitter

[ Go to pageGo to page: 1, 2 ]

Mike L

34

2120

Jan Mon 30, 2017 5:53 pm

FStephenMasek View the latest post

No unread posts Attachment(s) The Lightning Detecor

MIRAG

8

842

Jan Mon 30, 2017 3:08 am

too-bamp View the latest post

No unread posts VLF radio

dkjones96

8

2310

Jan Mon 30, 2017 2:35 am

wrnewton View the latest post

No unread posts Attachment(s) Power supply for farm radio

[ Go to pageGo to page: 1, 2, 3 ]

Ozo

42

2712

Jan Mon 30, 2017 12:49 am

Ozo View the latest post

No unread posts Motor Armature as an antenna?

Keneye

8

899

Jan Sun 29, 2017 9:30 pm

wrnewton View the latest post

No unread posts Solid diodes in place of 866a's

Yeti575

19

1231

Jan Fri 27, 2017 5:22 am

k3msb View the latest post

No unread posts Attachment(s) Replacing phonograph with mp3 player

[ Go to pageGo to page: 1, 2 ]

TheOriginalClassy

26

1523

Jan Fri 27, 2017 3:16 am

Tube Radio View the latest post

No unread posts 1920s Replica 1 Tube Regen

MIRAG

1

541

Jan Wed 25, 2017 5:27 pm

allthumbs View the latest post

No unread posts Attachment(s) Make An Isolation Transformer Help

Dutch Rabbit

10

841

Jan Mon 23, 2017 4:11 pm

Dutch Rabbit View the latest post

No unread posts 5902 Pentode Amp?

BakelitePete

14

946

Jan Sat 21, 2017 10:14 pm

Pbpix View the latest post

No unread posts Attachment(s) Three tube loudspeaker regenerative receiver

fifties

10

1284

Jan Sat 21, 2017 9:03 am

fifties View the latest post

No unread posts Attachment(s) Bridge Rectifier

[ Go to pageGo to page: 1, 2, 3, 4 ]

Ozo

63

2448

Jan Thu 19, 2017 11:20 pm

Leigh View the latest post

No unread posts Long wire antenna questions

knox

2

508

Jan Wed 18, 2017 1:19 am

infomet View the latest post

No unread posts Attachment(s) LC filter for 12VDC-120VAC inverter output

forumuser

12

746

Jan Tue 17, 2017 2:51 pm

forumuser View the latest post

No unread posts Attachment(s) My AA5 Homebrew / Trainer

[ Go to pageGo to page: 1, 2, 3 ]

radioalfa

47

3263

Jan Tue 17, 2017 12:58 am

Jim Mueller View the latest post

No unread posts Attachment(s) DIY amp with ECC83 and 6L6 tubes

[ Go to pageGo to page: 1, 2, 3, 4 ]

an2727

60

9586

Jan Thu 12, 2017 6:37 am

an2727 View the latest post

No unread posts Attachment(s) Isolation Transformer

[ Go to pageGo to page: 1, 2, 3 ]

Ozo

50

3115

Jan Wed 11, 2017 2:27 pm

Ozo View the latest post

No unread posts Attachment(s) MW Band Antenna

Ozo

3

561

Jan Sat 07, 2017 11:24 pm

Colin Ames View the latest post

No unread posts Attachment(s) Helping Hands

Ozo

4

501

Jan Tue 03, 2017 10:51 pm

Ozo View the latest post

No unread posts Attachment(s) Obtain a gain of 450 from one vacuum tube

flyboy71

8

811

Jan Mon 02, 2017 4:50 pm

dtvmcdonald View the latest post

No unread posts Sylvania RM-300X DIY cabinet + speaker build

Tube Radio

0

301

Jan Mon 02, 2017 1:44 am

Tube Radio View the latest post

No unread posts Attachment(s) Can Cap

N2LXM

2

402

Jan Sun 01, 2017 8:19 am

fifties View the latest post

No unread posts Attachment(s) 1 Tube preamp for AES 1 tube transmitter

andjones

3

458

Jan Sun 01, 2017 4:16 am

35Z5 View the latest post

No unread posts Attachment(s) The Hycas Circuit

J310

13

962

Dec Sat 31, 2016 3:05 pm

orbanp View the latest post

No unread posts Attachment(s) No schematic 1932 (?) GIBBS p-p 2A3, 2A5 driver, 56x2, 5Z3

slr

3

340

Dec Fri 30, 2016 3:47 am

Macrohenry View the latest post

No unread posts Attachment(s) Motor speed control circuit

Tube Radio

0

316

Dec Thu 29, 2016 1:57 pm

Tube Radio View the latest post

No unread posts Attachment(s) Voltage circuit design

[ Go to pageGo to page: 1, 2 ]

Tube Radio

31

1248

Dec Wed 28, 2016 12:21 pm

Tube Radio View the latest post

No unread posts Internal antenna diable?

Ronniet

3

376

Dec Wed 28, 2016 2:35 am

Jim Mueller View the latest post

No unread posts Power supply for simple regen.

Deadshort

9

610

Dec Tue 27, 2016 4:35 pm

Deadshort View the latest post

No unread posts Attachment(s) Amp circuit (successfully fixed!!!)

[ Go to pageGo to page: 1, 2, 3 ]

Tube Radio

56

3880

Dec Mon 26, 2016 1:23 am

Tube Radio View the latest post

No unread posts Harmonics from AMT5000

lagert

5

446

Dec Fri 23, 2016 3:41 pm

Peter Bertini View the latest post

No unread posts Question About On/Off Function

J310

5

425

Dec Tue 20, 2016 12:47 am

BobWeaver View the latest post

No unread posts Attachment(s) Photo cell circuit to switch Malibu LEDs

Mike Toon

7

548

Dec Mon 19, 2016 12:58 am

Rich, W3HWJ View the latest post

No unread posts What is best to have HM 102 and HM 2102 or the HM 2140/41

Cadmandu

3

396

Dec Fri 16, 2016 11:50 pm

Cadmandu View the latest post

No unread posts Attachment(s) MK-484 radio (circuit help)

[ Go to pageGo to page: 1, 2, 3, 4 ]

Tube Radio

71

4830

Dec Fri 16, 2016 4:43 pm

Tube Radio View the latest post

No unread posts Soldering a 3/32 SS welding rod into SO-239 cup

Cadmandu

6

526

Dec Fri 16, 2016 3:00 am

dtvmcdonald View the latest post

No unread posts Substitution for the 30 Triode?

AndyC

4

491

Dec Thu 15, 2016 6:47 pm

AndyC View the latest post

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