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Post New Topic  [ 3202 topics ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8 ... 65  Next
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No unread posts Attachment(s) HF Alternator Tests

harry dalek

12

1305

May Mon 15, 2017 10:19 am

harry dalek View the latest post

No unread posts TDA7052 audio amp obsolete

flyboy71

4

1366

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

942

May Sun 07, 2017 7:42 am

Felix View the latest post

No unread posts Attachment(s) DIY ground loop isolator

Tube Radio

4

1162

May Wed 03, 2017 5:54 am

Tube Radio View the latest post

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

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Hcompton79

73

8958

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

1949

Apr Sun 30, 2017 11:37 pm

wazz View the latest post

No unread posts Ramsey FM transmitter noise

Captainquad

9

1399

Apr Mon 24, 2017 10:01 pm

Audioman View the latest post

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

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Pbpix

36

5948

Apr Mon 17, 2017 9:06 am

FreeElectron View the latest post

No unread posts DYI Weather "NOAA" radio

transoceanic 8523

10

1673

Apr Sat 15, 2017 4:13 am

mblack View the latest post

No unread posts Any disadvantage in relocating output transformer?

Mike Toon

14

2034

Apr Fri 14, 2017 3:20 am

westcoastjohn View the latest post

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

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Tube Radio

28

5351

Apr Thu 13, 2017 3:05 pm

Tube Radio View the latest post

No unread posts DIY Magnavox CR-198C dial lamps

Tube Radio

3

1042

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

1610

Apr Sun 09, 2017 6:29 pm

doc-kd4e View the latest post

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

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Tube Radio

23

4280

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

1796

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

1871

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

3805

Mar Fri 31, 2017 6:53 pm

terryrh View the latest post

No unread posts Input impedance on Logitech Z130 ??

michael w

2

781

Mar Tue 28, 2017 6:00 am

michael w View the latest post

No unread posts cutting larger holes in chassis

N0BST

11

1573

Mar Tue 28, 2017 3:35 am

kc5gym View the latest post

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

kc5gym

9

1399

Mar Tue 28, 2017 2:37 am

kc5gym View the latest post

No unread posts Attachment(s) Crystal radio explanation

CR220

18

2887

Mar Mon 27, 2017 9:14 am

homebrew View the latest post

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

Kasanay

2

1356

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

6100

Mar Mon 20, 2017 8:56 am

KB5PWL View the latest post

No unread posts 5 band switch for regen question!

lennyshere

1

1276

Mar Mon 20, 2017 8:25 am

KB5PWL View the latest post

No unread posts Reinartz - pics, question and ideas

[ Go to pageGo to page: 1, 2 ]

exray

29

11559

Mar Sat 18, 2017 12:42 pm

Bill M View the latest post

No unread posts GSOT54900 A20147 DSP PLL stereo WITH serial control

Flinx

1

983

Mar Sat 18, 2017 1:52 am

Flinx View the latest post

No unread posts Attachment(s) Varactor tuning question

[ Go to pageGo to page: 1, 2 ]

Tube Radio

25

3295

Mar Wed 15, 2017 7:34 pm

Tube Radio View the latest post

No unread posts Attachment(s) Generator Monitoring AC

K4YDO

8

1190

Mar Wed 15, 2017 5:01 pm

radiotechnician View the latest post

No unread posts Attachment(s) Antenna Amplifier/Filter Design

[ Go to pageGo to page: 1, 2 ]

ghjkl67

24

3045

Mar Wed 15, 2017 3:48 pm

pixellany View the latest post

No unread posts Attachment(s) 4 Tube Xmitter?

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RCAProduction

28

4602

Mar Wed 01, 2017 6:23 pm

dkd View the latest post

No unread posts Attachment(s) DM160 [Soviet Equivalent] tube amp project consideration

ow346

4

1081

Mar Wed 01, 2017 1:28 am

Jim Mueller View the latest post

No unread posts Heathkit GR-81 clone. "here we go again!"

lennyshere

0

835

Feb Tue 28, 2017 6:08 pm

lennyshere View the latest post

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

Flinx

8

2199

Feb Mon 27, 2017 8:55 pm

Colin Ames View the latest post

Moved topic Attachment(s) Moved: RCA Victor 65X1 repair

[ Go to pageGo to page: 1 ... 6, 7, 8 ]

john8750

153

10841

Apr Mon 24, 2017 2:55 am

john8750 View the latest post

No unread posts Attachment(s) Buzzing transformer

[ Go to pageGo to page: 1, 2 ]

Yeti575

29

3744

Feb Thu 23, 2017 4:26 pm

Yeti575 View the latest post

No unread posts Attachment(s) What is this and source for schematic/instructions?

NumberMaj 1

6

1431

Feb Wed 22, 2017 2:57 am

NumberMaj 1 View the latest post

No unread posts Another one of my modified AA5 radios, to run off 8VAC

wa2ise

6

1750

Feb Tue 21, 2017 8:48 am

Pbpix View the latest post

No unread posts Antique speaker re-magnetizer

Tube Radio

5

1268

Feb Mon 20, 2017 6:43 am

Tube Radio View the latest post

No unread posts Attachment(s) 12AT7 and a O.P.T.

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michael w

29

3881

Feb Sun 19, 2017 6:46 am

michael w View the latest post

No unread posts 150 VDC Lambda power supply?

jack.estes

2

841

Feb Sat 18, 2017 2:24 am

jack.estes View the latest post

No unread posts Norms 12K5 Regen Complete

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

35Z5

55

26407

Feb Mon 13, 2017 7:36 pm

fortney View the latest post

No unread posts Attachment(s) Question about frequency response of homebrewed projects

jack.estes

6

1683

Feb Mon 13, 2017 1:39 am

jack.estes View the latest post

No unread posts Attachment(s) Uses for mostly junk tubes...

35Z5

7

1716

Feb Sun 12, 2017 10:48 am

BobWeaver View the latest post

No unread posts Attachment(s) HV Power Supply Project

udornf4

3

1453

Feb Sat 11, 2017 2:34 pm

udornf4 View the latest post

No unread posts Need Help on AR-67 Driver (HORN) Driver

joybird

0

581

Feb Thu 09, 2017 3:32 pm

joybird View the latest post

No unread posts Attachment(s) Anything special about this DIY 6 tube 3-dialer?

AuroraOldRadios

6

1447

Feb Thu 09, 2017 12:49 am

AuroraOldRadios View the latest post

No unread posts Ground lift vs Transformer

Macrohenry

2

1007

Feb Wed 08, 2017 2:58 am

richfair View the latest post

No unread posts '26 Tube not suitable for a detector

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too-bamp

33

4042

Feb Mon 06, 2017 5:47 pm

too-bamp View the latest post

No unread posts Attachment(s) MC1306

tjugofyra

5

949

Feb Mon 06, 2017 5:08 pm

tjugofyra View the latest post

No unread posts Hallicrafters S-41W audio mods

Tube Radio

5

2415

Feb Thu 02, 2017 11:23 pm

Tube Radio View the latest post

Post New Topic  [ 3202 topics ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8 ... 65  Next

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