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Post New Topic  [ 3133 topics ]  Go to page Previous  1, 2, 3, 4, 5, 6 ... 63  Next
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No unread posts Attachment(s) DIY benchtop power supply for AC and DC

jack.estes

2

499

Jun Tue 27, 2017 12:44 am

Tkilboy View the latest post

No unread posts current amplifier for meter substitution

Peter Bertini

8

653

Jun Fri 23, 2017 4:13 pm

Usually Lurking View the latest post

No unread posts Attachment(s) Building My Dream Rig

[ Go to pageGo to page: 1, 2 ]

ab5ni

20

1189

Jun Wed 21, 2017 8:25 pm

ab5ni View the latest post

No unread posts GFCI In A Bucking Transformer

Spykeismycat

2

560

Jun Sat 17, 2017 3:48 am

westcoastjohn View the latest post

No unread posts Attachment(s) WesKit Radio

wa8dof

12

3865

Jun Fri 16, 2017 3:32 pm

Realistic View the latest post

No unread posts What would you use for a 6 V radio supply?

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dgonshor

52

4375

Jun Wed 14, 2017 12:44 pm

Tube Radio View the latest post

No unread posts Attachment(s) Cathode modulation

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nico

50

5376

Jun Mon 12, 2017 8:11 pm

bill hamre View the latest post

No unread posts Good source for bare wire?

Deadshort

11

1572

Jun Sat 10, 2017 4:41 am

Southerner View the latest post

No unread posts Need pass transistor test jig

Southerner

5

717

Jun Sat 10, 2017 4:23 am

Southerner View the latest post

No unread posts Attachment(s) Latest "Variac" Build

COM-NAV-ECM

18

1497

Jun Fri 09, 2017 2:20 am

N2LXM View the latest post

No unread posts Attachment(s) DIY IF Transformer For AA4, AA5 & AA6

Robert H.

16

11168

Jun Tue 06, 2017 4:48 pm

black85vette View the latest post

No unread posts C power supply

Papy

4

974

Jun Mon 05, 2017 9:24 pm

CROSSBOLT View the latest post

No unread posts Attachment(s) Antenna Protection

jbees

17

1554

Jun Mon 05, 2017 3:12 pm

COM-NAV-ECM View the latest post

No unread posts 212E amp

archeus68

1

415

Jun Mon 05, 2017 2:10 pm

battradio@ View the latest post

No unread posts Attachment(s) Info Needed For Winding Ferrite Rod With Space Between Turns

Frank512

16

1355

Jun Sat 03, 2017 10:20 am

radiotechnician View the latest post

No unread posts Attachment(s) Some fun with submini tubes in a plastic GE AA5

wa2ise

4

962

Jun Thu 01, 2017 1:21 pm

HalliFan View the latest post

No unread posts Remote power supply

Ed Jacobs

4

669

May Mon 29, 2017 8:46 pm

Ed Jacobs View the latest post

No unread posts Attachment(s) LC filter design

Tube Radio

12

1089

May Sat 27, 2017 5:44 pm

Tube Radio View the latest post

No unread posts Attachment(s) 807 Williamson (sort of) UL Amplifier

Flipperhome

14

1357

May Sat 27, 2017 4:47 am

Flipperhome View the latest post

No unread posts Homebrew Power Supply

sfox7076

4

810

May Fri 26, 2017 3:26 pm

sfox7076 View the latest post

No unread posts cub scout xtal

bill hamre

2

592

May Tue 23, 2017 11:39 pm

bill hamre View the latest post

No unread posts XSS infinite impedance detector kit.

Felix

0

416

May Mon 22, 2017 11:40 am

Felix View the latest post

No unread posts Attachment(s) homebrew eye tube add on

aa5nut

7

1740

May Fri 19, 2017 8:53 pm

Audioman View the latest post

No unread posts Attachment(s) Looking for suggestions on my Halli S-38A

allthumbs

19

1461

May Wed 17, 2017 1:39 am

BobWeaver View the latest post

No unread posts Speed control circuit question

Tube Radio

8

872

May Mon 15, 2017 3:40 pm

Tube Radio View the latest post

No unread posts Attachment(s) QRM trap

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

tjugofyra

42

2740

May Mon 15, 2017 2:56 pm

madlabs View the latest post

No unread posts Attachment(s) HF Alternator Tests

harry dalek

12

876

May Mon 15, 2017 10:19 am

harry dalek View the latest post

No unread posts TDA7052 audio amp obsolete

flyboy71

4

1136

May Sun 07, 2017 11:51 pm

flyboy71 View the latest post

No unread posts Attachment(s) Voltage doubler/diode integrator AM detectors.

Felix

3

729

May Sun 07, 2017 7:42 am

Felix View the latest post

No unread posts Attachment(s) DIY ground loop isolator

Tube Radio

4

882

May Wed 03, 2017 5:54 am

Tube Radio View the latest post

No unread posts Attachment(s) Battery Tube AM BCB Transmitter

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

Hcompton79

73

6606

May Wed 03, 2017 5:17 am

Hcompton79 View the latest post

No unread posts Attachment(s) Modifying an old receiver to double as a wave trap.

DanBL

16

1544

Apr Sun 30, 2017 11:37 pm

wazz View the latest post

No unread posts Ramsey FM transmitter noise

Captainquad

9

1029

Apr Mon 24, 2017 10:01 pm

Audioman View the latest post

No unread posts Attachment(s) Wow what beautiful AM transmitter handiwork

[ Go to pageGo to page: 1, 2 ]

Pbpix

36

4616

Apr Mon 17, 2017 9:06 am

FreeElectron View the latest post

No unread posts DYI Weather "NOAA" radio

transoceanic 8523

10

1304

Apr Sat 15, 2017 4:13 am

mblack View the latest post

No unread posts Any disadvantage in relocating output transformer?

Mike Toon

14

1542

Apr Fri 14, 2017 3:20 am

westcoastjohn View the latest post

No unread posts Attachment(s) Buffer amp (problem)

[ Go to pageGo to page: 1, 2 ]

Tube Radio

28

4076

Apr Thu 13, 2017 3:05 pm

Tube Radio View the latest post

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

[ Go to pageGo to page: 1 ... 31, 32, 33 ]

35Z5

658

100958

Apr Mon 10, 2017 5:47 pm

john8750 View the latest post

No unread posts DIY Magnavox CR-198C dial lamps

Tube Radio

3

775

Apr Mon 10, 2017 3:03 am

Tube Radio View the latest post

Moved topic Attachment(s) Moved: Anyone do mods for others on Amateur Radio gear?

doc-kd4e

11

1331

Apr Sun 09, 2017 6:29 pm

doc-kd4e View the latest post

No unread posts BC-455A audio amp question (power supply)

[ Go to pageGo to page: 1, 2 ]

Tube Radio

23

3283

Apr Fri 07, 2017 2:43 pm

Tube Radio View the latest post

No unread posts RCA STRATO WORLD 3-BX-671 CONVERT TO ADD FM????

Froggy115

9

1424

Apr Fri 07, 2017 3:21 am

westcoastjohn View the latest post

No unread posts Attachment(s) Remote speaker for Sparton 6V6 radio

westcoastjohn

13

1355

Apr Tue 04, 2017 3:48 pm

Tube Radio View the latest post

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

[ Go to pageGo to page: 1, 2 ]

BakelitePete

20

3038

Mar Fri 31, 2017 6:53 pm

terryrh View the latest post

No unread posts Input impedance on Logitech Z130 ??

michael w

2

621

Mar Tue 28, 2017 6:00 am

michael w View the latest post

No unread posts cutting larger holes in chassis

N0BST

11

1292

Mar Tue 28, 2017 3:35 am

kc5gym View the latest post

No unread posts Attachment(s) A "modern" tube theremin

kc5gym

9

1143

Mar Tue 28, 2017 2:37 am

kc5gym View the latest post

No unread posts Attachment(s) Crystal radio explanation

CR220

18

2218

Mar Mon 27, 2017 9:14 am

homebrew View the latest post

No unread posts Attachment(s) Dual Rectifiers wired in Parallel???

Kasanay

2

1101

Mar Wed 22, 2017 7:45 pm

eeprof View the latest post

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

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

sml132

46

5151

Mar Mon 20, 2017 8:56 am

KB5PWL View the latest post

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