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No unread posts A 300 henry to 500 henry audio frequency choke coil?

lennyshere

4

106

Aug Mon 21, 2017 4:24 pm

lennyshere View the latest post

No unread posts Looking For A 2N3904 2N3906 LTSpice Model or Schematic

ab5ni

1

31

Aug Mon 21, 2017 3:36 pm

Peter Bertini View the latest post

No unread posts Attachment(s) A new 300B amp project

[ Go to pageGo to page: 1 ... 13, 14, 15 ]

john8750

290

1406

Aug Mon 21, 2017 3:17 pm

ab5ni View the latest post

No unread posts Attachment(s) Philco amp re-build.

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john8750

26

92

Aug Mon 21, 2017 1:27 pm

Tube Radio View the latest post

No unread posts Attachment(s) Build This Simple Push-Pull 6V6 Amp

[ Go to pageGo to page: 1, 2, 3, 4, 5 ]

Dave Doughty

80

16341

Aug Sun 20, 2017 11:23 pm

john8750 View the latest post

No unread posts Attachment(s) FM synchrodyne help

aurel

4

194

Aug Sun 20, 2017 4:08 pm

azenithnut View the latest post

No unread posts Attachment(s) Speaker build

Tube Radio

0

52

Aug Sun 20, 2017 3:43 pm

Tube Radio View the latest post

No unread posts 5 tube regen mod

TMadden

0

65

Aug Sun 20, 2017 3:24 pm

TMadden View the latest post

No unread posts Puny wires on a audio output transformer?

lennyshere

11

208

Aug Fri 18, 2017 7:41 pm

Macrohenry View the latest post

No unread posts Attachment(s) Remote volume control ideas

[ Go to pageGo to page: 1, 2 ]

Tube Radio

31

1813

Aug Fri 18, 2017 2:24 pm

Tube Radio View the latest post

No unread posts i need a scematic for an amplifier using an 01A tube

gtb81

12

277

Aug Thu 17, 2017 3:56 pm

Peter Bertini View the latest post

No unread posts Looking to get information on how radio circuits function

rccarz5

6

135

Aug Thu 17, 2017 3:30 am

shinkuukan View the latest post

No unread posts Attachment(s) Half wave dipole TV antenna, impedance matching

tube42

4

137

Aug Thu 17, 2017 12:49 am

Peter Bertini View the latest post

No unread posts Attachment(s) Best way of interconnecting filaments in 2A3s and 56s?

normende

18

292

Aug Wed 16, 2017 9:23 pm

Jim Mueller View the latest post

No unread posts Attachment(s) Motor experiment

Tube Radio

7

241

Aug Wed 16, 2017 5:54 pm

Tube Radio View the latest post

No unread posts Attachment(s) Infinite impedance detector radio project(s)...

[ Go to pageGo to page: 1, 2 ]

xrhonda91

27

7463

Aug Wed 16, 2017 10:21 am

Felix View the latest post

No unread posts Advice for 1930s receiver/af transformer

Bridkarl

0

70

Aug Wed 16, 2017 3:05 am

Bridkarl View the latest post

No unread posts Attachment(s) Modulator build

[ Go to pageGo to page: 1, 2 ]

Tube Radio

31

3081

Aug Wed 16, 2017 1:46 am

Tube Radio View the latest post

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

[ Go to pageGo to page: 1 ... 45, 46, 47 ]

35Z5

920

106617

Aug Tue 15, 2017 4:52 pm

Tube Radio View the latest post

No unread posts 6888 parts kit

bill hamre

8

373

Aug Tue 15, 2017 3:17 pm

bill hamre View the latest post

No unread posts Attachment(s) 2N3904 Driving an LM386 Audio Amp Working Kinda

[ Go to pageGo to page: 1, 2 ]

ab5ni

34

632

Aug Mon 14, 2017 3:08 am

ab5ni View the latest post

No unread posts Attachment(s) Xentek power supply

orbanp

17

472

Aug Mon 14, 2017 12:56 am

Leigh View the latest post

No unread posts Bluetooth receiver to Phono Input on Wards Airline 94BR-1535

itek4bux

7

353

Aug Sat 12, 2017 6:54 am

itek4bux View the latest post

No unread posts Attachment(s) Building a battery operated 3 valve receiver

[ Go to pageGo to page: 1, 2 ]

R93847

24

723

Aug Fri 11, 2017 7:55 am

BobWeaver View the latest post

No unread posts Attachment(s) Multilayer, tapped air coil calculator

[ Go to pageGo to page: 1, 2 ]

DaveInNC

28

303

Aug Thu 10, 2017 12:08 am

OldWireBender View the latest post

No unread posts Attachment(s) Farm Radio Power Supply

[ Go to pageGo to page: 1, 2 ]

SakanaLuvr

24

482

Aug Tue 08, 2017 6:13 am

SakanaLuvr View the latest post

No unread posts Teardrop Inductors/Chokes

ab5ni

5

184

Aug Tue 08, 2017 3:14 am

ab5ni View the latest post

No unread posts Attachment(s) amplifier circuit question

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

spider89119

41

455

Aug Tue 08, 2017 12:37 am

Jim Mueller View the latest post

No unread posts Attachment(s) RF amp tube to detector tube coupling question

lennyshere

9

291

Aug Mon 07, 2017 10:58 pm

lennyshere View the latest post

No unread posts Attachment(s) radiorich's 5902 amp feb20 update

[ Go to pageGo to page: 1 ... 9, 10, 11 ]

radiorich

202

11654

Aug Sun 06, 2017 8:42 pm

john8750 View the latest post

No unread posts Attachment(s) Transformer question

Tube Radio

11

304

Aug Sat 05, 2017 4:36 pm

Tube Radio View the latest post

No unread posts Making a really high 'Q' coil for my MK484 AM tuner.

Felix

7

289

Aug Sat 05, 2017 3:18 am

OldWireBender View the latest post

No unread posts Attachment(s) FM direct conversion radio

andreidaniel

4

1285

Aug Fri 04, 2017 11:18 pm

aurel View the latest post

No unread posts Attachment(s) AM loop antenna/signals from God

Unbias

4

305

Aug Wed 02, 2017 4:27 am

Dutch Rabbit View the latest post

No unread posts Attachment(s) The MK484 as a high quality AM tuner.

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

Felix

75

2267

Jul Sat 29, 2017 8:58 pm

ab5ni View the latest post

No unread posts Attachment(s) Simple Solid State TRF with Selectivity

fifties

6

2371

Jul Sat 29, 2017 3:09 pm

Frank512 View the latest post

No unread posts Attachment(s) homebrew contest

[ Go to pageGo to page: 1 ... 11, 12, 13 ]

bill hamre

253

25654

Jul Sat 29, 2017 2:54 pm

bill hamre View the latest post

No unread posts Attachment(s) Temple radio

tjugofyra

4

256

Jul Fri 28, 2017 3:05 pm

tjugofyra View the latest post

No unread posts using a VFO, for Part 15's?

Toad

15

2322

Jul Thu 27, 2017 3:03 pm

KG7M View the latest post

No unread posts Attachment(s) Does Anyone Play With Old Parts and Tubes for RF Amps?

infomet

17

474

Jul Thu 27, 2017 2:57 am

infomet View the latest post

No unread posts Attachment(s) Speed circuit

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

Tube Radio

43

982

Jul Wed 26, 2017 5:22 pm

Tube Radio View the latest post

No unread posts Attachment(s) Utmost Frugality Electronics

[ Go to pageGo to page: 1, 2 ]

ab5ni

23

929

Jul Wed 26, 2017 3:28 pm

Dennis H. View the latest post

No unread posts Attachment(s) Adding AFC to FM tuner without it

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

Tube Radio

57

2384

Jul Wed 26, 2017 4:59 am

Tube Radio View the latest post

No unread posts FM de-emphasis circuit

Tube Radio

0

153

Jul Tue 25, 2017 12:19 am

Tube Radio View the latest post

No unread posts Telsa Talisman 308U

itek4bux

3

213

Jul Fri 21, 2017 11:40 pm

Flipperhome View the latest post

No unread posts Attachment(s) Tuning capacitor question

michael w

13

478

Jul Thu 20, 2017 8:36 am

michael w View the latest post

No unread posts new to old FM band converter

N0BST

1

307

Jul Thu 20, 2017 3:47 am

dtvmcdonald View the latest post

No unread posts Attachment(s) Magnavox CR-198C upgrade

Tube Radio

4

375

Jul Wed 19, 2017 3:07 am

Tube Radio View the latest post

No unread posts Attachment(s) Speaker question

Tube Radio

10

508

Jul Wed 19, 2017 12:53 am

radiotechnician View the latest post

No unread posts Attachment(s) Buidling small AM transmitter

nipperscousin

7

963

Jul Fri 14, 2017 11:52 pm

TPAairman View the latest post

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