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Post New Topic  [ 3103 topics ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7 ... 63  Next
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No unread posts VLF radio

dkjones96

8

2639

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

3729

Jan Mon 30, 2017 12:49 am

Ozo View the latest post

No unread posts Motor Armature as an antenna?

Keneye

8

1243

Jan Sun 29, 2017 9:30 pm

wrnewton View the latest post

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

Yeti575

19

1735

Jan Fri 27, 2017 5:22 am

k3msb View the latest post

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

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TheOriginalClassy

26

2202

Jan Fri 27, 2017 3:16 am

Tube Radio View the latest post

No unread posts 1920s Replica 1 Tube Regen

MIRAG

1

669

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

1178

Jan Mon 23, 2017 4:11 pm

Dutch Rabbit View the latest post

No unread posts 5902 Pentode Amp?

BakelitePete

14

1376

Jan Sat 21, 2017 10:14 pm

Pbpix View the latest post

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

fifties

10

3600

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

3687

Jan Thu 19, 2017 11:20 pm

Leigh View the latest post

No unread posts Long wire antenna questions

knox

2

652

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

1096

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

4538

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

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an2727

60

10891

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

4310

Jan Wed 11, 2017 2:27 pm

Ozo View the latest post

No unread posts Attachment(s) MW Band Antenna

Ozo

3

725

Jan Sat 07, 2017 11:24 pm

Colin Ames View the latest post

No unread posts Attachment(s) Helping Hands

Ozo

4

696

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

1104

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

408

Jan Mon 02, 2017 1:44 am

Tube Radio View the latest post

No unread posts Attachment(s) Can Cap

N2LXM

2

555

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

701

Jan Sun 01, 2017 4:16 am

35Z5 View the latest post

No unread posts Attachment(s) The Hycas Circuit

J310

13

1394

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

527

Dec Fri 30, 2016 3:47 am

Macrohenry View the latest post

No unread posts Attachment(s) Motor speed control circuit

Tube Radio

0

444

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

1837

Dec Wed 28, 2016 12:21 pm

Tube Radio View the latest post

No unread posts Internal antenna diable?

Ronniet

3

611

Dec Wed 28, 2016 2:35 am

Jim Mueller View the latest post

No unread posts Power supply for simple regen.

Deadshort

9

927

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

5144

Dec Mon 26, 2016 1:23 am

Tube Radio View the latest post

No unread posts Harmonics from AMT5000

lagert

5

689

Dec Fri 23, 2016 3:41 pm

Peter Bertini View the latest post

No unread posts Question About On/Off Function

J310

5

598

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

814

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

555

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

6242

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

735

Dec Fri 16, 2016 3:00 am

dtvmcdonald View the latest post

No unread posts Substitution for the 30 Triode?

AndyC

4

629

Dec Thu 15, 2016 6:47 pm

AndyC View the latest post

No unread posts Attachment(s) Favorite/best prototyping techniques for tubes

Alfredo_T

5

875

Dec Wed 14, 2016 1:57 am

N2LXM View the latest post

No unread posts Attachment(s) Doerle Regen Receiver Tube Conversion

Jbdkz

3

744

Dec Mon 12, 2016 2:17 am

shinkuukan View the latest post

No unread posts Attachment(s) Bluetooth FM Transmitter

Flipperhome

0

378

Dec Sun 11, 2016 6:25 am

Flipperhome View the latest post

No unread posts Attachment(s) Cheap Crystal Calibrator for your boatanchor

dtvmcdonald

2

569

Dec Sat 10, 2016 7:11 pm

dtvmcdonald View the latest post

No unread posts 1Hz timebase without IC's

[ Go to pageGo to page: 1, 2 ]

jdlahmann

23

2022

Dec Sat 10, 2016 6:09 am

threeneurons View the latest post

No unread posts Roller Inductor..?

Stan the Man

2

543

Dec Thu 08, 2016 6:44 pm

Stan the Man View the latest post

No unread posts Attachment(s) 6CL6 PP amp questions

Pbpix

8

968

Dec Mon 05, 2016 10:10 am

radiotechnician View the latest post

No unread posts Homebrew Hybrid

BakelitePete

10

1170

Dec Thu 01, 2016 12:11 am

Jim Mueller View the latest post

No unread posts Attachment(s) Technical advice needed

[ Go to pageGo to page: 1, 2 ]

fifties

39

2836

Nov Wed 30, 2016 4:30 am

fifties View the latest post

No unread posts Schematic Diagram for a one tube Reflex Radio using a 117Z6

Coyotekid

4

823

Nov Sun 27, 2016 7:05 pm

Mike Toon View the latest post

No unread posts Attachment(s) Homebrew Isolation Transformer

[ Go to pageGo to page: 1, 2 ]

Macrohenry

36

4146

Nov Sun 27, 2016 5:59 pm

bill hamre View the latest post

No unread posts Attachment(s) Suggestions for receiver to build in a BCC-221-AK chassis?

BlewMagikSmoak

0

459

Nov Fri 25, 2016 2:51 am

BlewMagikSmoak View the latest post

No unread posts Attachment(s) Carrier-Current transmitter

[ Go to pageGo to page: 1, 2 ]

N2LXM

20

2111

Nov Wed 23, 2016 6:15 pm

Audioman View the latest post

No unread posts Apartment 40 M Antenna

Gary T. Lane

3

616

Nov Tue 22, 2016 3:45 am

Rich, W3HWJ View the latest post

No unread posts Attachment(s) Favorite Homebrew A-B Power Supply

35Z5

5

1180

Nov Sun 20, 2016 4:35 pm

Ozo View the latest post

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