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No unread posts Attachment(s) Unknown homemade antique tube device

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sml132

41

659

Jan Sun 22, 2017 2:09 am

sml132 View the latest post

No unread posts 5902 Pentode Amp?

BakelitePete

14

354

Jan Sat 21, 2017 10:14 pm

Pbpix View the latest post

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

fifties

10

695

Jan Sat 21, 2017 9:03 am

fifties View the latest post

No unread posts VLF radio

dkjones96

7

1706

Jan Fri 20, 2017 8:16 pm

dkjones96 View the latest post

No unread posts Attachment(s) PRINCELY PAUPER

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john8750

1395

12930

Jan Fri 20, 2017 6:26 pm

john8750 View the latest post

No unread posts Attachment(s) Bridge Rectifier

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Ozo

63

710

Jan Thu 19, 2017 11:20 pm

Leigh View the latest post

No unread posts Long wire antenna questions

knox

2

179

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

259

Jan Tue 17, 2017 2:51 pm

forumuser View the latest post

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

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radioalfa

47

1964

Jan Tue 17, 2017 12:58 am

Jim Mueller View the latest post

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

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35Z5

563

79016

Jan Mon 16, 2017 1:15 am

john8750 View the latest post

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

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Ozo

36

1150

Jan Sun 15, 2017 11:12 pm

Ozo View the latest post

No unread posts Attachment(s) 6888 AM broadcaster with PCB

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bill hamre

102

20044

Jan Sun 15, 2017 10:45 pm

Mike6158 View the latest post

No unread posts Attachment(s) Lil 7 AM Transmitter

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Mike L

31

653

Jan Sun 15, 2017 1:09 am

35Z5 View the latest post

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

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TheOriginalClassy

24

465

Jan Fri 13, 2017 8:30 pm

TheOriginalClassy View the latest post

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

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an2727

60

8306

Jan Thu 12, 2017 6:37 am

an2727 View the latest post

No unread posts Attachment(s) Isolation Transformer

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Ozo

50

1523

Jan Wed 11, 2017 2:27 pm

Ozo View the latest post

No unread posts Attachment(s) Home Made Probes

N2LXM

1

165

Jan Wed 11, 2017 3:48 am

db gain View the latest post

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

Yeti575

15

425

Jan Tue 10, 2017 2:27 am

W7TFO View the latest post

No unread posts Federal Ten Ten Heresy stereo "boom box" build

Flinx

6

374

Jan Sun 08, 2017 12:42 am

rmileham View the latest post

No unread posts Attachment(s) MW Band Antenna

Ozo

3

274

Jan Sat 07, 2017 11:24 pm

Colin Ames View the latest post

No unread posts Attachment(s) Helping Hands

Ozo

4

235

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

414

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

104

Jan Mon 02, 2017 1:44 am

Tube Radio View the latest post

No unread posts Attachment(s) Can Cap

N2LXM

2

198

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

203

Jan Sun 01, 2017 4:16 am

35Z5 View the latest post

No unread posts Attachment(s) The Hycas Circuit

J310

13

539

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

144

Dec Fri 30, 2016 3:47 am

Macrohenry View the latest post

No unread posts Attachment(s) Any neat ZN414 schematics out there?

BakelitePete

18

787

Dec Thu 29, 2016 6:41 pm

Rich, W3HWJ View the latest post

No unread posts Attachment(s) Motor speed control circuit

Tube Radio

0

153

Dec Thu 29, 2016 1:57 pm

Tube Radio View the latest post

No unread posts Attachment(s) Voltage circuit design

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Tube Radio

31

577

Dec Wed 28, 2016 12:21 pm

Tube Radio View the latest post

No unread posts Internal antenna diable?

Ronniet

3

184

Dec Wed 28, 2016 2:35 am

Jim Mueller View the latest post

No unread posts Power supply for simple regen.

Deadshort

9

309

Dec Tue 27, 2016 4:35 pm

Deadshort View the latest post

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

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Tube Radio

56

2671

Dec Mon 26, 2016 1:23 am

Tube Radio View the latest post

No unread posts Harmonics from AMT5000

lagert

5

235

Dec Fri 23, 2016 3:41 pm

Peter Bertini View the latest post

No unread posts Question About On/Off Function

J310

5

250

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

296

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

217

Dec Fri 16, 2016 11:50 pm

Cadmandu View the latest post

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

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35Z5

887

87011

Dec Fri 16, 2016 6:16 pm

bill hamre View the latest post

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

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Tube Radio

71

3404

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

323

Dec Fri 16, 2016 3:00 am

dtvmcdonald View the latest post

No unread posts Substitution for the 30 Triode?

AndyC

4

305

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

509

Dec Wed 14, 2016 1:57 am

N2LXM View the latest post

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

Jbdkz

3

366

Dec Mon 12, 2016 2:17 am

shinkuukan View the latest post

No unread posts Attachment(s) Bluetooth FM Transmitter

Flipperhome

0

200

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

289

Dec Sat 10, 2016 7:11 pm

dtvmcdonald View the latest post

No unread posts 1Hz timebase without IC's

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jdlahmann

23

931

Dec Sat 10, 2016 6:09 am

threeneurons View the latest post

No unread posts Roller Inductor..?

Stan the Man

2

291

Dec Thu 08, 2016 6:44 pm

Stan the Man View the latest post

No unread posts Attachment(s) HV Power Supply Project

udornf4

2

373

Dec Wed 07, 2016 9:26 pm

Chas View the latest post

No unread posts Longest dx

jimbob

9

500

Dec Wed 07, 2016 6:23 pm

flyboy71 View the latest post

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

Pbpix

8

461

Dec Mon 05, 2016 10:10 am

radiotechnician View the latest post

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