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Post New Topic  [ 3638 topics ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8 ... 73  Next
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No unread posts Making a 1937 Airline radio chassis now on Youtube

Buzz1151

9

1433

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

637

May Thu 16, 2019 8:53 pm

fifties View the latest post

No unread posts Attachment(s) AM Transmitter schematic

jim campbell

12

1567

May Thu 16, 2019 7:44 pm

35Z5 View the latest post

No unread posts Attachment(s) Stewart warner combination

spsquires

1

366

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

779

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

9828

May Sun 12, 2019 5:25 pm

engineer View the latest post

No unread posts Attachment(s) Power supply redesign

Tube Radio

18

1838

May Thu 09, 2019 10:58 pm

Tube Radio View the latest post

No unread posts Attachment(s) Remote tuner for a loop antenna

michael w

4

569

May Thu 09, 2019 7:49 pm

Macrohenry View the latest post

No unread posts Attachment(s) Building the Stancor Williamson Amp: 807 PP

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Greenhorn

20

3840

May Wed 08, 2019 4:10 am

FStephenMasek View the latest post

No unread posts Attachment(s) Single-ended push-pull Better design found?

[ Go to pageGo to page: 1, 2 ]

westcoastjohn

23

1395

May Mon 06, 2019 10:55 pm

radiotechnician View the latest post

No unread posts Attachment(s) coronado 650a

Rich berg

15

974

May Mon 06, 2019 2:56 pm

Rich berg View the latest post

No unread posts schematic for CLC filtered power supply wanted

williampage

18

965

May Sun 05, 2019 6:32 am

Usually Lurking View the latest post

No unread posts Reproduction KNIGHT AM BROADCASTER

w0vt

2

799

May Sat 04, 2019 5:28 pm

Mike Toon View the latest post

No unread posts Attachment(s) Super-Duper Simple single-FET external AM-BCB booster...

xrhonda91

16

1893

May Fri 03, 2019 7:02 pm

wazz View the latest post

No unread posts Attachment(s) Low pass filter addition to amplifier

[ Go to pageGo to page: 1, 2 ]

Tube Radio

39

3251

Apr Tue 30, 2019 9:43 pm

Tube Radio View the latest post

No unread posts Attachment(s) 250 volt power supply info needed.

williampage

17

1530

Apr Mon 29, 2019 5:46 pm

Usually Lurking View the latest post

No unread posts Attachment(s) Op Amp problems

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

Dennis H.

74

3346

Apr Sun 28, 2019 6:03 pm

pauls.ironhorse View the latest post

No unread posts Calculating dropping resisitor for zener diodes

[ Go to pageGo to page: 1, 2 ]

Yeti575

20

987

Apr Thu 25, 2019 6:08 pm

upsss View the latest post

No unread posts How do bidirectional amps work?

Macrohenry

6

548

Apr Thu 25, 2019 12:35 am

Macrohenry View the latest post

No unread posts Attachment(s) AM PLL Transmitter kit

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

Ed in SoDak

51

6249

Apr Tue 23, 2019 5:22 pm

Tube Radio View the latest post

No unread posts Attachment(s) Homebrew 1920s-'30s record player...I'm clueless. Ideas?

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

VanEpsFan1914

52

3491

Apr Mon 22, 2019 3:38 am

Tube Radio View the latest post

No unread posts Attachment(s) Demod probe results

allthumbs

8

714

Apr Fri 19, 2019 3:35 pm

Chas View the latest post

No unread posts Attachment(s) Tubeless FM Converter

Mike C.

4

438

Apr Thu 18, 2019 5:56 pm

pauls.ironhorse View the latest post

No unread posts Attachment(s) Metered soft start with digital meter

Sal Brisindi

4

462

Apr Wed 17, 2019 5:55 pm

Mike Toon View the latest post

No unread posts Attachment(s) AM flat loop antenna

[ Go to pageGo to page: 1, 2 ]

neondave

28

2967

Apr Fri 12, 2019 6:55 am

db gain View the latest post

No unread posts Attachment(s) CRT circuit question

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

Tube Radio

47

5111

Apr Fri 05, 2019 4:18 am

Tube Radio View the latest post

No unread posts Attachment(s) Questions about Laplace transforms in LTSpice.

[ Go to pageGo to page: 1, 2 ]

benman94

24

2113

Apr Mon 01, 2019 9:31 pm

benman94 View the latest post

No unread posts Attachment(s) AA5's on 24v wall transformers

jimsp

6

791

Apr Mon 01, 2019 7:47 pm

35Z5 View the latest post

No unread posts Layout and Routing

rmileham

5

431

Apr Mon 01, 2019 7:44 pm

flyboy71 View the latest post

No unread posts Attachment(s) Poll: Preparing for a Circlotron amplifier build - 6V6 vs 6BG6G?

benman94

14

1494

Apr Mon 01, 2019 5:21 pm

benman94 View the latest post

No unread posts Attachment(s) DIY Bluetooth to AM With Off The Shelf Parts

lewiss

9

1183

Apr Mon 01, 2019 2:32 am

Tube Radio View the latest post

No unread posts 1CP1 scope tube

Tube Radio

10

4829

Apr Mon 01, 2019 2:15 am

Tube Radio View the latest post

No unread posts Attachment(s) To ground or not to ground

breadbox

7

848

Mar Sun 31, 2019 5:05 am

westcoastjohn View the latest post

No unread posts Attachment(s) Tim's AM tube transmitter build

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

TV MAN

79

11515

Mar Sat 30, 2019 3:57 pm

infzqi View the latest post

No unread posts Attachment(s) AM transmitter question

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

Tube Radio

60

3976

Mar Sat 30, 2019 3:49 am

Tube Radio View the latest post

No unread posts Attachment(s) Stacking Transformers

Michael Janis

1

500

Mar Sat 30, 2019 12:28 am

westcoastjohn View the latest post

No unread posts Attachment(s) Tube circuits on copper clad board

allthumbs

10

906

Mar Mon 25, 2019 3:58 am

Elvirafan View the latest post

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

[ Go to pageGo to page: 1 ... 33, 34, 35 ]

35Z5

687

158023

Mar Sun 24, 2019 3:39 pm

bill hamre View the latest post

Moved topic Moved: Inexpensive spectrum analyzer GQ EMF-380 V2

KA

0

424

Mar Sun 24, 2019 5:13 am

KA View the latest post

No unread posts Antique Earphones

onlyrick

9

1267

Mar Fri 22, 2019 4:17 am

VanEpsFan1914 View the latest post

No unread posts Attachment(s) Signal tracer question.

Wrenchtwister

4

820

Mar Tue 19, 2019 5:28 am

LM386 View the latest post

No unread posts My four transistor FMTX

Dare4444

19

2690

Mar Sun 17, 2019 6:49 pm

Dare4444 View the latest post

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

[ Go to pageGo to page: 1 ... 47, 48, 49 ]

35Z5

973

201156

Mar Sun 17, 2019 6:32 am

radiorich View the latest post

No unread posts Attachment(s) Homebrew pin to phone plug adapter

crgrbrts

1

543

Mar Fri 15, 2019 3:05 pm

processhead View the latest post

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

[ Go to pageGo to page: 1, 2 ]

xrhonda91

28

18365

Mar Mon 11, 2019 4:45 pm

xrhonda91 View the latest post

No unread posts Attachment(s) Tube Biasing Question

ErikD

9

1157

Mar Sun 10, 2019 5:17 pm

Usually Lurking View the latest post

No unread posts Attachment(s) Din Cable for Telefunken Jubilate Delux

C1wlou

3

595

Mar Sat 09, 2019 5:24 am

majoco View the latest post

No unread posts Attachment(s) 807 Williamson amp

[ Go to pageGo to page: 1 ... 54, 55, 56 ]

john8750

1105

67086

Mar Fri 08, 2019 12:16 am

john8750 View the latest post

No unread posts Attachment(s) Stereo unbalanced to mono balanced adapter

Tube Radio

13

1110

Mar Sun 03, 2019 6:28 am

Tube Radio View the latest post

No unread posts Attachment(s) My two transistor FMTX

Dare4444

17

3997

Mar Sat 02, 2019 9:09 pm

Dare4444 View the latest post

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