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No unread posts Attachment(s) Heathkit WA-P2 power supply build questions

Govee

14

1320

Aug Sat 28, 2021 12:15 pm

COM-NAV-ECM View the latest post

No unread posts Attachment(s) Assistance requested with a superhet build.

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928GTS

21

3947

Aug Thu 26, 2021 9:40 pm

928GTS View the latest post

No unread posts Attachment(s) Choke hum on LM386 Transmitter

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Macrohenry

23

1396

Aug Tue 24, 2021 3:21 am

Macrohenry View the latest post

No unread posts Attachment(s) Two more instruments for Brian Wilson

Macrohenry

5

681

Aug Sat 21, 2021 9:41 pm

Colin Ames View the latest post

No unread posts Attachment(s) New Project: Audio/Visual Part 15 Antenna Tuning Indicator

Macrohenry

3

391

Aug Sat 21, 2021 9:14 pm

Macrohenry View the latest post

No unread posts Attachment(s) Short antenna capacitance

Macrohenry

3

3021

Aug Tue 17, 2021 6:59 pm

Macrohenry View the latest post

No unread posts Attachment(s) Stereo to monophonic conversion circuit to build?

soloapollo

18

1533

Aug Tue 17, 2021 12:43 pm

ACORNVALVE View the latest post

No unread posts Attachment(s) Slope detection of broadcast FM?

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928GTS

21

2690

Aug Fri 13, 2021 11:47 pm

ACORNVALVE View the latest post

No unread posts 12au7 sw regen.

jimbob

11

1778

Aug Tue 10, 2021 2:28 pm

jimbob View the latest post

No unread posts Attachment(s) First time crystal radio build

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whfh99

117

8613

Aug Tue 10, 2021 7:05 am

vu2nan View the latest post

No unread posts Attachment(s) Signal tracer build

whfh99

11

1102

Aug Sun 08, 2021 4:42 pm

whfh99 View the latest post

No unread posts Attachment(s) High Voltage Regulator Design Issue

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Jthorusen

82

4278

Aug Sat 07, 2021 11:36 pm

Jthorusen View the latest post

No unread posts Attachment(s) 3mW FM Transmitter based on Franklin Oscillator

Dare4444

0

459

Aug Sat 07, 2021 5:53 pm

Dare4444 View the latest post

No unread posts Talking House 5.0 audio overload and hum/buzz

Kramden66

8

1026

Aug Sat 07, 2021 5:14 pm

Tube Radio View the latest post

No unread posts Attachment(s) Solid state 1920's speaker amplifier revisited

Tube Radio

17

3193

Aug Sat 07, 2021 4:56 pm

Tube Radio View the latest post

No unread posts Attachment(s) Bluetooth, AM Transmitter

criageek

7

1076

Aug Sat 07, 2021 2:10 am

criageek View the latest post

No unread posts Attachment(s) simple formulas for calculating tank circuit values?????????

shockedagain75

14

1531

Aug Fri 06, 2021 3:51 pm

KK6GM View the latest post

No unread posts Attachment(s) Antennae question

keith1898

15

909

Aug Tue 03, 2021 4:36 pm

poulsbobill View the latest post

No unread posts Attachment(s) Low Noise DC receiver idea

Dare4444

0

403

Aug Sun 01, 2021 10:27 pm

Dare4444 View the latest post

No unread posts Attachment(s) SDR Transceiver Idea with 2n7000

Dare4444

2

486

Jul Fri 30, 2021 7:36 pm

Dare4444 View the latest post

No unread posts Attachment(s) SSB transceiver idea

[ Go to pageGo to page: 1, 2 ]

Dare4444

20

1392

Jul Fri 30, 2021 8:14 am

Dare4444 View the latest post

No unread posts Attachment(s) Polyakov mixer working for DSB generation?

sv3ora

6

599

Jul Fri 30, 2021 5:49 am

KX5JSC View the latest post

No unread posts How To Properly Install a On Off Slide Switche ?

Frank512

9

1174

Jul Thu 29, 2021 4:03 pm

err ducks View the latest post

No unread posts Attachment(s) AM with IN4148 double balanced mixer

Dare4444

2

479

Jul Mon 26, 2021 9:19 pm

Dare4444 View the latest post

No unread posts Attachment(s) 38 as regenerative detector

allthumbs

13

1641

Jul Mon 26, 2021 7:56 pm

err ducks View the latest post

No unread posts Attachment(s) Another regen 1D8 tube.

ballroad

3

570

Jul Sat 24, 2021 12:16 am

mrx View the latest post

No unread posts Schematic for regen utilizing an 815 tube?

KA8GEF

3

516

Jul Fri 23, 2021 11:41 pm

N0BST View the latest post

No unread posts Attachment(s) Tube IF transformers

dr pepper

15

2087

Jul Fri 23, 2021 3:21 am

ACORNVALVE View the latest post

No unread posts Variable Frequency Synthesized Source for AM Transmitters

NW2K

1

558

Jul Thu 22, 2021 9:35 pm

Colin Ames View the latest post

No unread posts diy FM superhet without audio ?

aurel

0

445

Jul Thu 22, 2021 2:26 pm

aurel View the latest post

No unread posts Attachment(s) Power ON indicator for battery tube sets.

Robert Lozier

14

1213

Jul Wed 21, 2021 6:38 pm

Tube Radio View the latest post

No unread posts 2m receiver ideas

Dare4444

6

920

Jul Wed 21, 2021 2:56 pm

Dare4444 View the latest post

No unread posts Single-end output amp schematic using 211 output tubes?

soloapollo

4

842

Jul Sun 18, 2021 1:04 pm

NW2K View the latest post

No unread posts Attachment(s) Relay circuit question

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Tube Radio

22

1929

Jul Sun 18, 2021 9:17 am

Tube Radio View the latest post

No unread posts Tickler Question

jimbob

3

541

Jul Sat 17, 2021 9:49 pm

Jim Mueller View the latest post

No unread posts Attachment(s) AMT-MW207 525-1605kHz kit built - OK sort of...

Robert Lozier

0

482

Jul Thu 15, 2021 8:47 pm

Robert Lozier View the latest post

No unread posts Attachment(s) My recent one tube regen

ballroad

10

1340

Jul Wed 14, 2021 12:34 am

ballroad View the latest post

No unread posts input impedance for BNC to opamp

mhamiton

11

1129

Jul Tue 13, 2021 12:57 am

Jim Mueller View the latest post

No unread posts Attachment(s) Subharmonic SDR idea with schematic.

Dare4444

5

554

Jul Mon 12, 2021 11:33 pm

Dare4444 View the latest post

No unread posts Attachment(s) Untested SSB SDR Idea. Any feedback or suggestions please

Dare4444

5

450

Jul Sun 11, 2021 11:48 pm

Dare4444 View the latest post

No unread posts Attachment(s) ZX81

jsweinrich

9

1494

Jul Wed 07, 2021 2:45 am

Ed in SoDak View the latest post

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

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35Z5

1046

321441

Jul Tue 06, 2021 8:43 am

Retrotube View the latest post

No unread posts Attachment(s) Loop antenna question

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whfh99

20

1949

Jul Sun 04, 2021 7:41 pm

OldWireBender View the latest post

No unread posts Attachment(s) Construction 3 tubes Audion 1923, all concert, patent Audion

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yan_sk

38

4805

Jul Sun 04, 2021 3:02 am

mrx View the latest post

No unread posts All tube AM Transmitter

jim campbell

2

846

Jul Thu 01, 2021 4:38 pm

rxradio View the latest post

No unread posts Attachment(s) Crystal Radio Set

Blustar1

17

7868

Jun Tue 29, 2021 6:50 am

Nivagues View the latest post

No unread posts Heathkit White Solid Hookup Wire - What Gauge Was It ?

Frank512

2

506

Jun Tue 29, 2021 1:05 am

Frank512 View the latest post

Moved topic Attachment(s) Moved: Anyone collect Crystal radios?

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whfh99

51

3941

Jul Fri 09, 2021 7:28 am

BobWeaver View the latest post

No unread posts Attachment(s) Home brew 2.5 mH Choke (and Other Considerations) For Regen

krystallo

13

1368

Jun Thu 24, 2021 1:04 am

shinkuukan View the latest post

No unread posts Attachment(s) Regen radio coil question

SkyKing

6

1040

Jun Wed 23, 2021 4:17 am

Macrohenry View the latest post

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